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Studies on diverse chemical species derived from chalcogen atoms ~ The Footprint of Professor Naomichi Furukawa in Heteroatom Chemistry ~ 由硫原子衍生的多种化学物质的研究~古川直一教授在杂原子化学中的足迹~
IF 0.3 4区 化学
Heteroatom Chemistry Pub Date : 2019-01-28 DOI: 10.1002/hc.21475
Soichi Sato
{"title":"Studies on diverse chemical species derived from chalcogen atoms ~ The Footprint of Professor Naomichi Furukawa in Heteroatom Chemistry ~","authors":"Soichi Sato","doi":"10.1002/hc.21475","DOIUrl":"10.1002/hc.21475","url":null,"abstract":"<p>This account summarizes representative contributions of Prof. Naomichi Furukawa to the field of heteroatom chemistry. Ligand-coupling reactions (LCRs) and ligand-exchange reactions (LERs) of chalcogen derivatives were developed from reactions of trivalent chalcogen species with organometallic reagents. Prof. Furukawa has also reported a large number of mono- and dicationic compounds generated via transannular and intermolecular interactions. Furthermore, the detection and isolation of hypercoordinated chalcogen species bearing only carbon ligands and an efficient method for the synthesis of thiophene <i>S</i>-oxides and their reactivity are described.</p>","PeriodicalId":12816,"journal":{"name":"Heteroatom Chemistry","volume":"29 5-6","pages":""},"PeriodicalIF":0.3,"publicationDate":"2019-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1002/hc.21475","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45632817","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Nitroselenation of carbon-carbon triple bond by PhSeSePh and NO/O2 or NO2 PhSeSePh与NO/ o2或NO2对碳-碳三键的亚硝基硒化反应
IF 0.3 4区 化学
Heteroatom Chemistry Pub Date : 2019-01-23 DOI: 10.1002/hc.21480
Yutaka Nishiyama, Mari Sumida, Noboru Sonoda
{"title":"Nitroselenation of carbon-carbon triple bond by PhSeSePh and NO/O2 or NO2","authors":"Yutaka Nishiyama,&nbsp;Mari Sumida,&nbsp;Noboru Sonoda","doi":"10.1002/hc.21480","DOIUrl":"10.1002/hc.21480","url":null,"abstract":"<p>When alkynes were treated with diphenyl diselenide under an atmosphere of nitric oxide and oxygen, nitroselenation of the carbon-carbon triple bond proceeded with a high regioselectivity to give the corresponding 1-nitro-2-phenylseleno alkenes. Similarly, the nitroselenation of alkynes proceeded by the reaction of the alkynes with nitrogen dioxide. The stirring of the 1,2-bis(phenylseleno) alkenes under an atmosphere of nitric oxide and oxygen also gave the corresponding 1-nitro-2-phenylseleno alkenes.</p>","PeriodicalId":12816,"journal":{"name":"Heteroatom Chemistry","volume":"29 5-6","pages":""},"PeriodicalIF":0.3,"publicationDate":"2019-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1002/hc.21480","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43669785","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
N-Heterocyclic Germylenes: Structural Characterisation of Some Heavy Analogues of the Ubiquitous N-Heterocyclic Carbenes n -杂环革烯:普遍存在的n -杂环碳烯的一些重类似物的结构表征
IF 0.3 4区 化学
Heteroatom Chemistry Pub Date : 2019-01-23 DOI: 10.1155/2019/9178371
Christopher A. Dodds, A. Kennedy, M. Spicer
{"title":"N-Heterocyclic Germylenes: Structural Characterisation of Some Heavy Analogues of the Ubiquitous N-Heterocyclic Carbenes","authors":"Christopher A. Dodds, A. Kennedy, M. Spicer","doi":"10.1155/2019/9178371","DOIUrl":"https://doi.org/10.1155/2019/9178371","url":null,"abstract":"The X-ray crystal structures of three N-heterocyclic germylenes (NHGes) have been elucidated including the previously unknown 1,3-bis(2,6-dimethylphenyl)diazagermol-2-ylidene (1). In addition, the X-ray crystal structures of the previously synthesised 1,3-bis(2,4,6-trimethylphenyl)diazagermol-2-ylidene (2) and 1,3-bis(2,6-diisopropylphenyl)diazagermol-2-ylidene (3) are also reported. The discrete molecular structures of compounds 1 to 3 are comparable, with Ge-N bond lengths in the range 1.835-1.875 Å, while the N-Ge-N bond angles range between 83.6 and 85.2°. Compound 2 was compared to the analogous N-heterocyclic carbene species, 1,3-bis(2,4,6-trimethylphenyl)imidazol-2-ylidene (IMes). The major geometrical difference observed, as expected, was the bond angle around the divalent group 14 atom. The N-Ge-N bond angle was 83.6° for compound 2 versus the N-C-N bond angle of 101.4° for IMes. The Sn equivalent of (1), 1,3-bis(2,6-dimethylphenyl)diazastannol-2-ylidene (4), has also been synthesised and its crystal structure is reported here. In order to test their suitability as ligands, compounds 1 to 3 were reacted with a wide range of transition metal complexes. No NHGes containing metal complexes were observed. In all cases the NHGe either degraded or gave no reaction.","PeriodicalId":12816,"journal":{"name":"Heteroatom Chemistry","volume":" ","pages":""},"PeriodicalIF":0.3,"publicationDate":"2019-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1155/2019/9178371","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41887215","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Synthesis and structure of bis(ethylenedioxy)-1,4,5,8-tetraselenanaphthalene 二(乙烯二氧基)-1,4,5,8-四硒萘的合成与结构
IF 0.3 4区 化学
Heteroatom Chemistry Pub Date : 2019-01-11 DOI: 10.1002/hc.21479
Ryoji Watanabe, Masashi Hasegawa, Masahiko Iyoda
{"title":"Synthesis and structure of bis(ethylenedioxy)-1,4,5,8-tetraselenanaphthalene","authors":"Ryoji Watanabe,&nbsp;Masashi Hasegawa,&nbsp;Masahiko Iyoda","doi":"10.1002/hc.21479","DOIUrl":"10.1002/hc.21479","url":null,"abstract":"<p>Bis (ethylenedioxy)-1,4,5,8-tetraselenanaphthalene (BEDO-TSeN) has been synthesized by the reaction of diselenolate with tetraiodoethylene or tetrabromoethylene. The structure of BEDO-TSeN was determined by X-ray analysis, and its π-donor property was estimated by MO calculations and determined by CV analysis.</p>","PeriodicalId":12816,"journal":{"name":"Heteroatom Chemistry","volume":"29 5-6","pages":""},"PeriodicalIF":0.3,"publicationDate":"2019-01-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1002/hc.21479","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43013393","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
A Thermochemical Parameters and Theoretical Study of the Chlorinated Compounds of Thiophene 噻吩氯化化合物的热化学参数及理论研究
IF 0.3 4区 化学
Heteroatom Chemistry Pub Date : 2019-01-09 DOI: 10.1155/2019/7680264
Ibrahim A. M. Saraireh, M. Altarawneh, J. Al-Hawarin, M. Almatarneh
{"title":"A Thermochemical Parameters and Theoretical Study of the Chlorinated Compounds of Thiophene","authors":"Ibrahim A. M. Saraireh, M. Altarawneh, J. Al-Hawarin, M. Almatarneh","doi":"10.1155/2019/7680264","DOIUrl":"https://doi.org/10.1155/2019/7680264","url":null,"abstract":"This contribution sets out to compute thermochemical and geometrical parameters of the complete series of chlorinated isomers of thiophene based on the accurate chemistry model of CBS-QB3. Herein, we compute standard entropies, standard enthalpies of formation, standard Gibbs free energies of formation, and heat capacities. Our calculated enthalpy values agree with available limited experimental values. The DFT-based reactivity descriptors were used to elucidate the site selectivity for the chlorination sequence of thiophene. The relative preference for chlorination was found to be in accord with the thermodynamic stability trends inferred based on the H scale. Calculated Fukui indices predict a chlorination sequence to ensue as follows: 2-chloro → 2,5-dichloro → 2,3,5-trichloro → 2,3,4,5-tetrachlorothiophene.","PeriodicalId":12816,"journal":{"name":"Heteroatom Chemistry","volume":" ","pages":""},"PeriodicalIF":0.3,"publicationDate":"2019-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1155/2019/7680264","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43547706","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Synthesis, structures, and reactivity of 9,9-dialkoxy-9-silafluorenes 9,9-二烷氧基-9-硅芴的合成、结构和反应性
IF 0.3 4区 化学
Heteroatom Chemistry Pub Date : 2019-01-07 DOI: 10.1002/hc.21478
Ken-ichiro Kanno, Satoshi Hirose, Soichiro Kyushin
{"title":"Synthesis, structures, and reactivity of 9,9-dialkoxy-9-silafluorenes","authors":"Ken-ichiro Kanno,&nbsp;Satoshi Hirose,&nbsp;Soichiro Kyushin","doi":"10.1002/hc.21478","DOIUrl":"10.1002/hc.21478","url":null,"abstract":"<p>A series of novel 9,9-dialkoxy-9-silafluorenes were synthesized, and their structures and reactivity were studied. Dehydrogenative alkoxylation of 9,9-dihydro-9-silafluorene with various alcohols in the presence of PdCl<sub>2</sub> gave the corresponding dialkoxylated products in good yields. The structures of some of the novel 9,9-dialkoxy-9-silafluorenes were analyzed by X-ray crystallography. The 9,9-dialkoxy-9-silafluorenes show remarkably high reactivity toward phenylmagnesium bromide to afford substitution products.</p>","PeriodicalId":12816,"journal":{"name":"Heteroatom Chemistry","volume":"29 5-6","pages":""},"PeriodicalIF":0.3,"publicationDate":"2019-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1002/hc.21478","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45015568","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Reaction of arylhydrazines with diaryl ditellurides in the air: Insight into bimolecular homolytic substitution on tellurium via Aryl–Te bond cleavage 芳基肼与二芳基二碲在空气中的反应：通过芳基-Te键断裂对碲的双分子均溶取代的洞察
IF 0.3 4区 化学
Heteroatom Chemistry Pub Date : 2019-01-03 DOI: 10.1002/hc.21471
Yuki Yamamoto, Fumiya Sato, Shintaro Kodama, Akihiro Nomoto, Akiya Ogawa
{"title":"Reaction of arylhydrazines with diaryl ditellurides in the air: Insight into bimolecular homolytic substitution on tellurium via Aryl–Te bond cleavage","authors":"Yuki Yamamoto,&nbsp;Fumiya Sato,&nbsp;Shintaro Kodama,&nbsp;Akihiro Nomoto,&nbsp;Akiya Ogawa","doi":"10.1002/hc.21471","DOIUrl":"10.1002/hc.21471","url":null,"abstract":"<p>The reactivity of diaryl ditelluride and diaryl telluride toward aryl radicals was studied in detail. Diphenyl ditelluride underwent a bimolecular homolytic substitution (S<sub>H</sub>2) reaction with a phenyl radical generated from phenylhydrazine in the air, to afford diphenyl telluride in excellent yield. Based on this diphenyl telluride synthesis, a one-pot synthesis of unsymmetrical diaryl tellurides was developed by the S<sub>H</sub>2 reaction of in situ generated diphenyl telluride with arylhydrazines in the air. The selectivity of mono-/di-substitution and the reactivity of arylhydrazines depend on the nature of the substituents on the arylhydrazines, that is, electron-donating or -withdrawing group.</p>","PeriodicalId":12816,"journal":{"name":"Heteroatom Chemistry","volume":"29 5-6","pages":""},"PeriodicalIF":0.3,"publicationDate":"2019-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1002/hc.21471","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48864556","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Imidazole and Azo-Based Schiff Bases Ligands as Highly Active Antifungal and Antioxidant Components 咪唑和偶氮基希夫碱配体作为高活性抗真菌和抗氧化成分
IF 0.3 4区 化学
Heteroatom Chemistry Pub Date : 2019-01-03 DOI: 10.1155/2019/6862170
S. Slassi, A. Fix‐Tailler, G. Larcher, A. Amine, A. El-Ghayoury
{"title":"Imidazole and Azo-Based Schiff Bases Ligands as Highly Active Antifungal and Antioxidant Components","authors":"S. Slassi, A. Fix‐Tailler, G. Larcher, A. Amine, A. El-Ghayoury","doi":"10.1155/2019/6862170","DOIUrl":"https://doi.org/10.1155/2019/6862170","url":null,"abstract":"We describe, herein, the synthesis, full characterization, and optical properties of four different ligandsL1-L4which associate an azo group, an imidazole unit, and a Schiff base fragment. The UV-visible absorption bands are characteristic ofπ→π⁎andn→π⁎transitions with an additional charge transfer between the azobenzene moiety and the imino group. Finally the determination of MIC80values against pathogenic fungi such asS. apiospermum,A. fumigatus,andC. albicansrevealed that these ligands have effective antifungal properties with highest activities (MIC80) onC. albicansfor the azole based ligandsL1-L3. DPPH radical scavenging of the studied ligands was also tested.","PeriodicalId":12816,"journal":{"name":"Heteroatom Chemistry","volume":" ","pages":""},"PeriodicalIF":0.3,"publicationDate":"2019-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1155/2019/6862170","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44584392","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 40
Synthesis of optically active tertiary phosphine oxides: A historical overview and the latest advances 光学活性叔氧化膦的合成：历史综述和最新进展
IF 0.3 4区 化学
Heteroatom Chemistry Pub Date : 2019-01-03 DOI: 10.1002/hc.21476
Jacek Chrzanowski, Dorota Krasowska, Jozef Drabowicz
{"title":"Synthesis of optically active tertiary phosphine oxides: A historical overview and the latest advances","authors":"Jacek Chrzanowski,&nbsp;Dorota Krasowska,&nbsp;Jozef Drabowicz","doi":"10.1002/hc.21476","DOIUrl":"10.1002/hc.21476","url":null,"abstract":"<p>The synthetic approaches for the preparation of non-racemic tertiary phosphine oxides with particular attention to the latest advances are discussed in this minireview.</p>","PeriodicalId":12816,"journal":{"name":"Heteroatom Chemistry","volume":"29 5-6","pages":""},"PeriodicalIF":0.3,"publicationDate":"2019-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1002/hc.21476","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46856714","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 17
A “masked” source for the phosphaalkene MesP=CH2: Trapping, rearrangement, and oligomerization 磷烯烃MesP=CH2的“掩蔽”源:捕获、重排和寡聚化
IF 0.3 4区 化学
Heteroatom Chemistry Pub Date : 2019-01-03 DOI: 10.1002/hc.21474
Leixing Chen, Shuai Wang, Patrick Werz, Zeyu Han, Derek P. Gates
{"title":"A “masked” source for the phosphaalkene MesP=CH2: Trapping, rearrangement, and oligomerization","authors":"Leixing Chen,&nbsp;Shuai Wang,&nbsp;Patrick Werz,&nbsp;Zeyu Han,&nbsp;Derek P. Gates","doi":"10.1002/hc.21474","DOIUrl":"10.1002/hc.21474","url":null,"abstract":"<p>We report the attempted synthesis of a “masked” phosphaalkene by treating MgA·3THF (A = anthracenide) with MesPCl(CH<sub>2</sub>Cl). Although the desired “masked” phosphaalkene could not be isolated, indirect evidence for its formation was obtained. The product of trapping MesP=CH<sub>2</sub> with 1,3-cyclohexadiene was detected. In addition, the oxide MesPO(Me)A was isolated and crystallographically characterized from the MgA·3THF and MesPCl(CH<sub>2</sub>Cl) experiment described above. Finally, the attempted isolation of “masked” phoshaalkene afforded P-containing oligomers with a trimodal molecular weight distribution [<i>M</i><sub>n</sub> = 640, 1.7 × 10<sup>3</sup> and 7.4 × 10<sup>3</sup> Da].</p>","PeriodicalId":12816,"journal":{"name":"Heteroatom Chemistry","volume":"29 5-6","pages":""},"PeriodicalIF":0.3,"publicationDate":"2019-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1002/hc.21474","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47856357","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
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