Davide Castiglione, Margherita Miele, Alberto Nardi, Laura Castoldi, Vittorio Pace
{"title":"Chemoselective Synthesis of α‐Chloro and α,α ‐Dichloro acetamidines via the Carbenoids Addition to Inherently Low Electrophilic Carbodiimides","authors":"Davide Castiglione, Margherita Miele, Alberto Nardi, Laura Castoldi, Vittorio Pace","doi":"10.1002/adsc.202500320","DOIUrl":"https://doi.org/10.1002/adsc.202500320","url":null,"abstract":"The hitherto few explored α‐halomethyl amidine motif has been assembled through the addition of a lithiated (di)‐halomethane (i.e. carbenoid) to easily accessible N,N’‐diaryl substituted carbodiimides. Despite the inherent low electrophilicity of these heterocumulenes – as quantitatively determined in Mayr’s previous studies – their sp‐hybridized carbon atom acts as a competent site of attack for these tamed nucleophiles. The overall high‐yielding transformation featuring a genuine chemoselective profile – as documented by employing variously functionalized materials – is adaptable to the addition of dihalogenated carbenoids. Reaction products could be advantageously employed in nucleophilic substitution sequences, as well as, in further functionalization of the nitrogen atoms due to the constitutive heteroallyl‐type skeleton.","PeriodicalId":118,"journal":{"name":"Advanced Synthesis & Catalysis","volume":"6 1","pages":""},"PeriodicalIF":5.4,"publicationDate":"2025-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143842125","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Tan Zhang , Mengyun Wu , Wenhui Wang , Yingsibing Fan , Ping Liu , Peipei Sun
{"title":"Alkylation of Imines with Alkyl Halides under Electrochemical Conditions","authors":"Tan Zhang , Mengyun Wu , Wenhui Wang , Yingsibing Fan , Ping Liu , Peipei Sun","doi":"10.1002/adsc.202401527","DOIUrl":"10.1002/adsc.202401527","url":null,"abstract":"<div><div>An electrochemical protocol for the alkylation of imines was developed by using easily available alkyl halides as the alkyl sources, graphite felt (GF) as anode and zinc plate as cathode. Various substituted imines, alkyl bromides and alkyl iodides were suitable for this reaction and a series of α‐branched amines were obtained in moderate to good yields. This method provides a green way for the addition of imines to avoid the need for metal reagents, chemical oxidants and reductants, which makes it has a good application prospect in drug synthesis.</div></div>","PeriodicalId":118,"journal":{"name":"Advanced Synthesis & Catalysis","volume":"367 8","pages":"Article e202401527"},"PeriodicalIF":4.4,"publicationDate":"2025-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142992471","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Palladium/Norbornene Cooperative Catalysis: A Modular In Situ Vicinal Functionalization Strategy for Recent Developments of Carbohydrate Chemistry","authors":"Himanshu Gangwar , Zanjila Azeem , Pintu Kumar Mandal","doi":"10.1002/adsc.202401570","DOIUrl":"10.1002/adsc.202401570","url":null,"abstract":"<div><div>The palladium/norbornene (Pd/NBE) cooperative catalysis, first identified by Catellani in 1997, provides an efficient approach for synthesizing highly functionalized aromatic compounds that are challenging to obtain through conventional methods. The developed synthetic approach integrates selective C−H bond activation with sequential reactions, allowing for the targeted functionalization of both the <em>ortho</em> and <em>ipso</em> positions of aryl halides via aryl‐norbornadiene‐palladacycle (ANP), which in turn ensures high chemoselectivity and regioselectivity of the products. It is estimated that approximately 20% of all natural products are glycosylated, with the carbohydrates linked to these compounds frequently playing a critical role in their biological activity. Currently, research in carbohydrate chemistry predominantly concentrates on polysubstitutional derivatization or vicinal functionalization strategies. However, the limited availability of 1,2‐disubstituted compounds has been scarcely investigated, and previous studies often relied on directional group assistance to achieve disubstitution. Recently, significant advancements have been achieved with Pd/NBE cooperative catalysis, an area that has gained considerable importance in carbohydrate chemistry, presenting an opportunity to inspire further research interest in Catellani reactions. In this review, we provide a comprehensive analysis of the Pd/NBE strategy within the realm of sugar chemistry, encompass early research and advancement in catalytic reactions, outline synthetic potential, highlight the significant progress made, and emphasize the most recent developments and their applications in situ vicinal functionalization of carbohydrate derivatives.</div></div>","PeriodicalId":118,"journal":{"name":"Advanced Synthesis & Catalysis","volume":"367 8","pages":"Article e202401570"},"PeriodicalIF":4.4,"publicationDate":"2025-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143435400","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Bangzhong Wang , Luyang Sun , Pengyue Zhang , Shuaibo Zhang , Jinfeng Zhao , Jingping Qu , Yuhan Zhou
{"title":"Synthesis of Chiral 2‐trifluoromethyl‐4‐(tetrahydroquinolinyl)‐4H‐chromenes via Pd‐Catalyzed Asymmetric Amination","authors":"Bangzhong Wang , Luyang Sun , Pengyue Zhang , Shuaibo Zhang , Jinfeng Zhao , Jingping Qu , Yuhan Zhou","doi":"10.1002/adsc.202401422","DOIUrl":"10.1002/adsc.202401422","url":null,"abstract":"<div><div>A new strategy for the construction of chiral 4<em>H</em>‐chromene skeleton via Pd‐catalyzed asymmetric amination of <em>2H</em>‐chromene was reported. A series of chiral 2‐trifluoromethyl‐4<em>H</em>‐chromenes containing 1,2,3,4‐tetrahydroquinoline unit were synthesized in moderate to good yields with excellent enantioselectivity, the method serves as an effective supplement to the construction of chiral 4<em>H</em>‐chromene skeleton.</div></div>","PeriodicalId":118,"journal":{"name":"Advanced Synthesis & Catalysis","volume":"367 8","pages":"Article e202401422"},"PeriodicalIF":4.4,"publicationDate":"2025-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142832627","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Xiao‐Yu Lu , Meng‐Xue Su , Hua‐Yi Huang , Yu‐Jun Qian , Hai‐Lun Sun , Xiang Li , Xin‐Ru Hu , Hao‐Yu Dong
{"title":"Iron‐Catalyzed Decarboxylative and Deconstructive Cross‐Coupling of Acrylic Acids with Ketone‐Derived Dihydroquinazolinones","authors":"Xiao‐Yu Lu , Meng‐Xue Su , Hua‐Yi Huang , Yu‐Jun Qian , Hai‐Lun Sun , Xiang Li , Xin‐Ru Hu , Hao‐Yu Dong","doi":"10.1002/adsc.202401503","DOIUrl":"10.1002/adsc.202401503","url":null,"abstract":"<div><div>Herein, an iron‐catalyzed protocol for the aromatization‐driven deconstruction and decarboxylation of ketone‐derived dihydroquinazolinones in reaction with unsaturated carboxylic acids is reported. A diverse range of fluoroacrylic acids and cinnamic acids reacted effectively with dihydroquinazolinones, yielding essential monofluoroalkenes and alkenes with excellent stereoselectivity. Additionally, spiro‐dihydroquinazolinones served as suitable substrates, facilitating the synthesis of valuable quinazolin‐4(3H)‐ones featuring alkene motifs. This protocol is notable for its operational simplicity and versatility, enabling the chemical diversification of active molecules.</div></div>","PeriodicalId":118,"journal":{"name":"Advanced Synthesis & Catalysis","volume":"367 8","pages":"Article e202401503"},"PeriodicalIF":4.4,"publicationDate":"2025-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142981646","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Xuhong Zhao , Lian Ma , Meng Wang , Weishuang Li , Yaoyao Zhang , Bojie Li , Zhongpu Fang , Bo Xiong , Lei Zhu
{"title":"Preparation of Mesoporous Cu2O Nanospheres for Green Synthesis in the Enantioselective Boron Conjugate Addition of α,β‐Unsaturated Chiral Compounds in Aqueous Phase","authors":"Xuhong Zhao , Lian Ma , Meng Wang , Weishuang Li , Yaoyao Zhang , Bojie Li , Zhongpu Fang , Bo Xiong , Lei Zhu","doi":"10.1002/adsc.202401501","DOIUrl":"10.1002/adsc.202401501","url":null,"abstract":"<div><div>Chiral organoboron compounds are essential intermediates in various significant reactions. However, there are still few efficient catalysts for their synthesis. This paper reports a novel catalytic material for chiral asymmetric boron conjugate addition reactions: mesoporous Cu<sub>2</sub>O nanospheres (M−Cu<sub>2</sub>O). M−Cu<sub>2</sub>O is approximately 0.55 μm, exhibiting dense and uniformly distributed worm‐like pores. It features a specific surface area of 15.7 m<sup>2</sup>/g and an average pore size of 14.3 nm. Under the conditions of Toluene:H<sub>2</sub>O=9:1, with a chiral ligand amount of 3.6 mol% and no additional base, it achieves a high yield (98% yield) and impressive enantioselectivity (99% ee) for the template substrate chalcone using only 3.0 mol% of the catalyst. Notably, the catalyst can be easily recovered and maintains robust catalytic performance after seven cycles, yielding 92% and an ee value of 90%. This work presents a mild and effective method for synthesizing chiral boron compounds in an aqueous phase, significantly enhancing the application potential of mesoporous copper oxide nanospheres.</div></div>","PeriodicalId":118,"journal":{"name":"Advanced Synthesis & Catalysis","volume":"367 8","pages":"Article e202401501"},"PeriodicalIF":4.4,"publicationDate":"2025-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142937431","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Mariur Rodriguez Moreno , Mary L. Setelin , Joshua D. Hansen , James L. Corey , Kirt L. Noble , Lillian R. Stillwell , Emily Angell , Olivia A. Stubbs , Jugal Kumawat , Carlos S. Muñoz Gomez , Stacey J. Smith , Daniel H. Ess , David J. Michaelis
{"title":"Controlling Catalyst Speciation to Achieve Room Temperature Pd‐Catalyzed Aminations with Aryl and Heteroaryl Chlorides","authors":"Mariur Rodriguez Moreno , Mary L. Setelin , Joshua D. Hansen , James L. Corey , Kirt L. Noble , Lillian R. Stillwell , Emily Angell , Olivia A. Stubbs , Jugal Kumawat , Carlos S. Muñoz Gomez , Stacey J. Smith , Daniel H. Ess , David J. Michaelis","doi":"10.1002/adsc.202401337","DOIUrl":"10.1002/adsc.202401337","url":null,"abstract":"<div><div>The amination of aryl halides with palladium catalysts (Buchwald‐Hartwig amination) is a widely used transformation in synthetic and drug discovery chemistry. In this report, we demonstrate that a monometallic 2‐phosphinoimidazole Pd catalyst exhibits comparable or enhanced reactivity when compared to all ligands screened for room temperature amination of aryl chlorides with secondary amines. The di‐tert‐butylphosphine derivative showed extremely high reactivity while the di‐isopropyl variant led to almost complete loss of catalytic activity. Computational and experimental mechanistic and kinetic studies indicate that a monometallic Pd structure rather than a bimetallic Pd structure is key to fast catalysis. The di‐tert‐butylphosphine ligand has fast catalysis because it thermodynamically disfavors the formation of a much less active bimetallic Pd complex. A wide substrate scope is demonstrated for the arylation of secondary amines with aryl chlorides using our new catalyst system.</div></div>","PeriodicalId":118,"journal":{"name":"Advanced Synthesis & Catalysis","volume":"367 8","pages":"Article e202401337"},"PeriodicalIF":4.4,"publicationDate":"2025-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142986776","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ganesh P. Pawar , Indrajeet J. Barve , Li‐Ching Shen , Chung‐Ming Sun
{"title":"Base‐Mediated Four‐Component Intramolecular Cyclization Reaction: One‐Pot Access to Imidazole‐4‐(2H)‐Ones","authors":"Ganesh P. Pawar , Indrajeet J. Barve , Li‐Ching Shen , Chung‐Ming Sun","doi":"10.1002/adsc.202401433","DOIUrl":"10.1002/adsc.202401433","url":null,"abstract":"<div><div>A base‐mediated one‐pot, two‐step, four‐component reaction has been developed to synthesize imidazole‐4(2<em>H</em>)‐ones, utilizing commercially available amino acid esters, aldehydes, alkynes, and amino alcohols. Control experiments and isolation of the intermediate revealed the mechanistic details. This four‐component reaction proceeds via imine formation, followed by the nucleophilic addition of alkyne to form a propargylamine precursor. Subsequently, the propargylamine precursor under undergoes base‐mediated conversion into 1‐azadiene, followed by in situ ketene formation to generate (allylideneamino)prop‐1‐en‐1‐one. The nucleophilic addition of amino alcohol and subsequent intramolecular cyclization provides imidazole‐4 (2<em>H</em>)‐ones exclusively.</div></div>","PeriodicalId":118,"journal":{"name":"Advanced Synthesis & Catalysis","volume":"367 8","pages":"Article e202401433"},"PeriodicalIF":4.4,"publicationDate":"2025-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142992657","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Shipan Xu , Biquan Xiong , Minjing Yuan , Weifeng Xu , Renfeng Cao , Fan Cao , Longzhi Zhu , Shuang‐Feng Yin
{"title":"Synthesis of Layered Copper‐Based 2D‐MOFs for Enhanced Catalytic Regioselective Phosphorylation of Alkynes and P−H Bonds","authors":"Shipan Xu , Biquan Xiong , Minjing Yuan , Weifeng Xu , Renfeng Cao , Fan Cao , Longzhi Zhu , Shuang‐Feng Yin","doi":"10.1002/adsc.202401414","DOIUrl":"10.1002/adsc.202401414","url":null,"abstract":"<div><div>A functionalized heterogeneous Cu‐based metal‐organic framework (Cu‐2D‐MOF) was synthesized through the reaction of Cu(NO<sub>3</sub>)<sub>2</sub> ⋅ 3H<sub>2</sub>O with 2,3,5,6‐tetrafluoroterephthalic acid and 4,4′‐bipyridine. The synthesized material underwent comprehensive characterization using various techniques, including FT‐IR spectroscopy, N<sub>2</sub> physical adsorption, scanning electron microscopy (SEM), and X‐ray photoelectron spectroscopy (XPS). Subsequently, the catalytic performance of Cu‐2D‐MOFs was assessed in the hydrophosphorylation and aerobic oxidative dehydrogenative coupling reactions involving alkynes and P−H bonds. The catalyst demonstrated remarkable catalytic activity in both transformations, effectively yielding a wide variety of (<em>E</em>)‐alkenyl‐phosphoryl and alkynyl‐phosphoryl compounds, respectively. Notably, the incorporation of this MOF material facilitated the phosphorylation reaction to proceed seamlessly, eliminating the necessity for supplementary small molecular organic ligands. Furthermore, the catalyst demonstrated ease of recovery and recyclability through a simple recovery process. Employing a systematic approach of sequential control experiments, we have delineated the potential transformation pathway of the reaction and consequently hypothesized a probable reaction mechanism for the observed transformation.</div></div>","PeriodicalId":118,"journal":{"name":"Advanced Synthesis & Catalysis","volume":"367 8","pages":"Article e202401414"},"PeriodicalIF":4.4,"publicationDate":"2025-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143031276","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Kai Zheng , Zhaoyang Wang , Yacong Wang , Chao Chen , Chao Shen
{"title":"Photo‐Induced Oxidative C−H Esterification of Quinoxalinones with Arylaldehydes under Mild Conditions","authors":"Kai Zheng , Zhaoyang Wang , Yacong Wang , Chao Chen , Chao Shen","doi":"10.1002/adsc.202500018","DOIUrl":"10.1002/adsc.202500018","url":null,"abstract":"<div><div>The first example for photo‐induced oxidative C−H esterification of quinoxalinones with arylaldehydes under benign conditions has been reported. This method is distinguished by its capacity to accommodate a diverse array of quinoxalinones and arylaldehydes, culminating in the synthesis of the corresponding esters with moderate to good yields. The protocol is lauded for its environmental benignity, eschewing the need for hazardous transition metals and costly photocatalysts, and relies solely on hydrogen peroxide (H<sub>2</sub>O<sub>2</sub>) as the oxidant. Moreover, the scalability of the synthesis and the derivative transformations of the products have been demonstrated, underscoring its practical utility in organic synthesis.</div></div>","PeriodicalId":118,"journal":{"name":"Advanced Synthesis & Catalysis","volume":"367 8","pages":"Article e202500018"},"PeriodicalIF":4.4,"publicationDate":"2025-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143526511","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}