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One-Pot Synthesis of Pyrrolidine-2-ones from Erythruronolactone and Amine 赤藓酮内酯和胺一锅法合成吡咯烷-2-酮
Organic Chemistry International Pub Date : 2012-02-09 DOI: 10.1155/2012/482952
Chahrazed Benhaoua
{"title":"One-Pot Synthesis of Pyrrolidine-2-ones from Erythruronolactone and Amine","authors":"Chahrazed Benhaoua","doi":"10.1155/2012/482952","DOIUrl":"https://doi.org/10.1155/2012/482952","url":null,"abstract":"Concise and accessible approaches to pyrrolidine-2-ones were studied. The synthesis involves the conversion of erythruronolactone to pyrrolidine-2-ones in good yields.","PeriodicalId":19688,"journal":{"name":"Organic Chemistry International","volume":"5 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2012-02-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85381122","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
The Reactivity of 2-Ethoxy-4-Chloroquinazoline and Its Use in Synthesis of Novel Quinazoline Derivatives 2-乙氧基-4-氯喹唑啉的反应性及其在新型喹唑啉衍生物合成中的应用
Organic Chemistry International Pub Date : 2011-12-28 DOI: 10.1155/2011/295491
M. El-hashash, Khalid M. Darwish, S. Rizk, F. A. El-Bassiouny
{"title":"The Reactivity of 2-Ethoxy-4-Chloroquinazoline and Its Use in Synthesis of Novel Quinazoline Derivatives","authors":"M. El-hashash, Khalid M. Darwish, S. Rizk, F. A. El-Bassiouny","doi":"10.1155/2011/295491","DOIUrl":"https://doi.org/10.1155/2011/295491","url":null,"abstract":"The behavior of 2-ethoxy-4-chloroquinazoline 2 towards various nitrogen nucleophiles, namely: thiosemicarbazide, sodium azide, glucosamine, ethanol, and hydrazine hydrate has been discussed. Also, the behavior of 4-(2-ethoxyquinazolin-4-yl)thiosemicarbazide towards one-carbon, for example, ethyl chloroformate, and two-carbon donors, for example, ethyl chloroacetate and diethyl oxalate has been investigated. On the other hand, new 5-ethoxy-2-substituted[1,2,4]-triazolo-[1,5-c]quinazoline derivatives have been obtained by ring closure accompanied with Dimroth rearrangement through the interaction of compound 2 with hydrazides of acetic, benzoic, crotonic, cinnamic, 2-furoic, and phthalimidoacetic acids. Structures of the novel products were confirmed by elemental, IR, MS, and 1H-NMR spectral analyses.","PeriodicalId":19688,"journal":{"name":"Organic Chemistry International","volume":"3 1","pages":"1-7"},"PeriodicalIF":0.0,"publicationDate":"2011-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85003985","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 7
Organic Solid Acid/NaNO2: An Efficient System for the Oxidation of Urazoles and Bis-Urazoles under Mild and Heterogeneous Conditions 有机固体酸/纳米2:在温和和非均相条件下氧化乌拉唑和双乌拉唑的高效体系
Organic Chemistry International Pub Date : 2011-12-26 DOI: 10.1155/2011/497852
G. Chehardoli, M. Zolfigol, M. Rasouli, S. Mallakpour
{"title":"Organic Solid Acid/NaNO2: An Efficient System for the Oxidation of Urazoles and Bis-Urazoles under Mild and Heterogeneous Conditions","authors":"G. Chehardoli, M. Zolfigol, M. Rasouli, S. Mallakpour","doi":"10.1155/2011/497852","DOIUrl":"https://doi.org/10.1155/2011/497852","url":null,"abstract":"Various organic solid acids/NaNO2 were used as effective oxidizing agents for the oxidation of urazoles and bis-urazoles to their corresponding triazolinediones under mild and heterogeneous conditions at room temperature with good-to-excellent yields.","PeriodicalId":19688,"journal":{"name":"Organic Chemistry International","volume":"384 1","pages":"1-3"},"PeriodicalIF":0.0,"publicationDate":"2011-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78011885","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Copper(I)-BINOL Catalyzed Domino Synthesis of 1,4-Benzoxathiines through ()-O Bond Formation 铜(I)-二醇通过()-O键形成催化1,4-苯并恶硫汀的多米诺合成
Organic Chemistry International Pub Date : 2011-09-19 DOI: 10.1155/2011/980765
Chiranjeevi Korupalli, Arpan Dandapat, D. Prasad, G. Sekar
{"title":"Copper(I)-BINOL Catalyzed Domino Synthesis of 1,4-Benzoxathiines through ()-O Bond Formation","authors":"Chiranjeevi Korupalli, Arpan Dandapat, D. Prasad, G. Sekar","doi":"10.1155/2011/980765","DOIUrl":"https://doi.org/10.1155/2011/980765","url":null,"abstract":"1,4-benzoxathiine moieties can be synthesized by domino SN2 ring opening of epoxide with o-halothiophenols followed by the copper(I)-BINOL catalyzed Ullmann-type coupling cyclization (intramolecular C(aryl)-O bond formation) with moderate to good yields.","PeriodicalId":19688,"journal":{"name":"Organic Chemistry International","volume":"30 1","pages":"1-7"},"PeriodicalIF":0.0,"publicationDate":"2011-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83416566","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Microwave-Assisted Improved Regioselective Synthesis of 12H-Benzopyrano[3,2-c][1]benzopyran-5-ones by Radical Cyclisation 微波辅助下改进区域选择性自由基环化合成12h -苯并吡喃[3,2-c][1]苯并吡喃-5- 1
Organic Chemistry International Pub Date : 2011-09-15 DOI: 10.1155/2011/394619
P. K. Basu, Amrita Ghosh
{"title":"Microwave-Assisted Improved Regioselective Synthesis of 12H-Benzopyrano[3,2-c][1]benzopyran-5-ones by Radical Cyclisation","authors":"P. K. Basu, Amrita Ghosh","doi":"10.1155/2011/394619","DOIUrl":"https://doi.org/10.1155/2011/394619","url":null,"abstract":"Two new effective methodologies have been adopted for the preparation of 4-(2′-bromobenzyloxy)benzopyran-7-ones 3(a–h). In the first methodology, 4-hydroxy[1]benzopyran-2-ones 1(a–d) was alkylated with 2-bromobenzyl bromide 2a or 2-bromo-5-methoxy benzyl bromide 2b under phase transfer catalysis condition using lithium hydroxide/tetrabutyl ammonium bromide in N,N-dimethylformamide at 40–50°C and in the second method the microwave irradiation protocol has been exploited by simply mixing of 4-hydroxy[1]benzopyran-2-ones 1(a–d) with 25% excess of 2-bromobenzyl bromide 2a or 2-bromo-5-methoxy benzyl bromide 2b. A catalytic amount of TBAB and potassium carbonate were added and irradiated in an open Erlenmeyer flask in a microwave oven for 4–10 min. The tributyltin-hydride-mediated radical cyclisation of 3(a–h) was carried out under microwave irradiation to generate 12H-benzopyrano[3,2-c][1]benzopyran-5-ones 4(a–h) in 78–88% yield and in this technique yields were significantly improved and reaction time was shortened compared to the previously reported conventional radical cyclisation method.","PeriodicalId":19688,"journal":{"name":"Organic Chemistry International","volume":"10 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2011-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87709530","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Electronic Structure and Physical-Chemistry Property Relationship for Oxazole Derivatives by Ab Initio and DFT Methods 用从头算和DFT方法研究恶唑衍生物的电子结构和理化性质关系
Organic Chemistry International Pub Date : 2011-09-12 DOI: 10.1155/2011/254064
S. Belaidi, Malika Mellaoui
{"title":"Electronic Structure and Physical-Chemistry Property Relationship for Oxazole Derivatives by Ab Initio and DFT Methods","authors":"S. Belaidi, Malika Mellaoui","doi":"10.1155/2011/254064","DOIUrl":"https://doi.org/10.1155/2011/254064","url":null,"abstract":"The geometric, electronic structure, effect of the substitution, and structure physical-chemistry relationship for oxazoles derivatives have been studied by ab initio and DFT theory. In the present work, the calculated values, namely, net charges, bond lengths, dipole moments, electron affinities, heats of formation, and QSAR properties are reported and discussed in terms of the reactivity of oxazole derivatives.","PeriodicalId":19688,"journal":{"name":"Organic Chemistry International","volume":"252 1","pages":"1-7"},"PeriodicalIF":0.0,"publicationDate":"2011-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75841436","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 6
2-Pyrrolidinones and 3-Pyrrolin-2-ones: A Study on the Chemical Reactivity of These Structural Moieties 2-吡咯烷酮和3-吡咯烷酮:这些结构基团的化学反应性研究
Organic Chemistry International Pub Date : 2011-09-04 DOI: 10.1155/2011/803120
J. Alves
{"title":"2-Pyrrolidinones and 3-Pyrrolin-2-ones: A Study on the Chemical Reactivity of These Structural Moieties","authors":"J. Alves","doi":"10.1155/2011/803120","DOIUrl":"https://doi.org/10.1155/2011/803120","url":null,"abstract":"The chemical reactivity of 2-pyrrolidinones and 3-pyrrolin-2-ones was evaluated in reactions of addition, nucleophilic substitution, elimination, and reduction as well as the protection of the lactamic nitrogen.","PeriodicalId":19688,"journal":{"name":"Organic Chemistry International","volume":"7 1","pages":"1-10"},"PeriodicalIF":0.0,"publicationDate":"2011-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80117456","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
C-Silylated Calix[4]Arene as a New Receptor for Aspartate in Polar Solvents c -硅基杯[4]芳烃在极性溶剂中作为天冬氨酸的新受体
Organic Chemistry International Pub Date : 2011-07-27 DOI: 10.1155/2011/171374
R. Zadmard, Parinaz Ataeian, Maryam Khalili-Foumeshi
{"title":"C-Silylated Calix[4]Arene as a New Receptor for Aspartate in Polar Solvents","authors":"R. Zadmard, Parinaz Ataeian, Maryam Khalili-Foumeshi","doi":"10.1155/2011/171374","DOIUrl":"https://doi.org/10.1155/2011/171374","url":null,"abstract":"The recognition of aspartic acid derivatives such as N-benzyloxycarbonyl-D-aspartate (NZDA) with the calix[4]arene derivatives with multiple silicon groups at the upper rim in polar solvents is investigated.","PeriodicalId":19688,"journal":{"name":"Organic Chemistry International","volume":"105 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2011-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79540711","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Chemical Composition of Essential Oil from the Peel of Chinese Torreya grandis Fort 香榧果皮精油的化学成分研究
Organic Chemistry International Pub Date : 2011-07-16 DOI: 10.1155/2011/187372
T. Feng, Jian-jie Cui, Zuobing Xiao, H. Tian, F. Yi, Xia Ma
{"title":"Chemical Composition of Essential Oil from the Peel of Chinese Torreya grandis Fort","authors":"T. Feng, Jian-jie Cui, Zuobing Xiao, H. Tian, F. Yi, Xia Ma","doi":"10.1155/2011/187372","DOIUrl":"https://doi.org/10.1155/2011/187372","url":null,"abstract":"The composition of the peel essential oil of Torreya grandis fort obtained by cold pressing and steam distillation was determined by GC and GC/MS. 62 constituents accounting for 99.6% of the total pressed oil were identified while 59 compounds accounting for 99.4% of the steam distilled oil were identified. Limonene (35.6–37.1%), α-pinene (20.1–24.1%), and δ-carene (3.3–3.9) were the major constituents. Others include γ-carene (3.8-3.9%), germacrene D (2.5–2.9%), and β-farnesene (2.7-2.8%).","PeriodicalId":19688,"journal":{"name":"Organic Chemistry International","volume":"44 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2011-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79936841","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 17
Synthesis, Antimicrobial, and Anticoagulant Activities of 2-(Arylsulfonyl)indane-1,3-diones 2-(芳基磺酰基)吲哚-1,3-二酮的合成及其抗菌和抗凝血活性
Organic Chemistry International Pub Date : 2011-07-15 DOI: 10.1155/2011/360810
M. Jeyachandran, P. Ramesh
{"title":"Synthesis, Antimicrobial, and Anticoagulant Activities of 2-(Arylsulfonyl)indane-1,3-diones","authors":"M. Jeyachandran, P. Ramesh","doi":"10.1155/2011/360810","DOIUrl":"https://doi.org/10.1155/2011/360810","url":null,"abstract":"2-(Arylsulfonyl)indane-1,3-diones, earlier synthesized by Claisen condensation involving diethyl phthalate and aryl methyl sulphones, are found to be potent blood anticoagulants. In search of improved analogs of 2-(arylsulfonyl)indane-1,3-dione, we have synthesized them (7 a-f) by a different route involving Knoevenagel reaction between phthalic anhydride and arylsulfonylacetates in the presence of pyridine-piperidine medium for the first time. The synthesized 2-(arylsulfonyl)indane-1,3-diones were evaluated for antimicrobial and anticoagulant activities and all of them registered significant activity.","PeriodicalId":19688,"journal":{"name":"Organic Chemistry International","volume":"32 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2011-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88979710","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 8
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