{"title":"2-(芳基)苯并[b]噻吩-3(2H) 1- 1,1-二氧化物的合成方法及反应","authors":"RAJ KUMAR, Subrata Barick, Manvendra Kumar","doi":"10.2174/1570193x21666230906141749","DOIUrl":null,"url":null,"abstract":"Abstract: 2-(Arylidene)benzo[b]thiophen-3(2H)one 1,1-dioxides are oxidized form of thioaurones. Various methods have been reported for their synthesis, e.g., a) condensation of benzo[b]thiophen-3(2H)one 1,1-dioxides with aryl aldehydes under acidic or basic conditions, b) oxidation of thioaurones with hydrogen peroxide or sodium perborate tetrahydrate, c) from the catalytic reaction of iodonium ylides with (bis(trifluoroacetoxy)iodo) benzene in presence copper(II)acetoacetonate, d)by ring contraction of 1-thioflavones in the presence of ceric ammonium nitrate. The reports have shown addition reactions with p-thiocresol in the absence of any catalyst, conjugated addition product without hetero ring opening with Grignard reagent, forms corresponding oxime and hydrazone with hydroxyl amine and phenyl hydrazine, respectively, produces polycyclic compounds with enamines, shows contrasting behavior with NBS and gives addition products with organophosphorus compounds in both hydroxylic and non-hydroxylic solvents which depends on reaction medium. In the present mini-review, we have discussed the various synthetic strategies and reactions of 2-(arylidene)benzo[b]thiophen-3(2H)one 1,1-dioxides, along with their reported utilities.","PeriodicalId":18632,"journal":{"name":"Mini-reviews in Organic Chemistry","volume":null,"pages":null},"PeriodicalIF":1.9000,"publicationDate":"2023-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Synthetic Approaches and Reactions of 2-(Arylidene)benzo[b]thiophen-3(2H)one-1,1-dioxides\",\"authors\":\"RAJ KUMAR, Subrata Barick, Manvendra Kumar\",\"doi\":\"10.2174/1570193x21666230906141749\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Abstract: 2-(Arylidene)benzo[b]thiophen-3(2H)one 1,1-dioxides are oxidized form of thioaurones. Various methods have been reported for their synthesis, e.g., a) condensation of benzo[b]thiophen-3(2H)one 1,1-dioxides with aryl aldehydes under acidic or basic conditions, b) oxidation of thioaurones with hydrogen peroxide or sodium perborate tetrahydrate, c) from the catalytic reaction of iodonium ylides with (bis(trifluoroacetoxy)iodo) benzene in presence copper(II)acetoacetonate, d)by ring contraction of 1-thioflavones in the presence of ceric ammonium nitrate. The reports have shown addition reactions with p-thiocresol in the absence of any catalyst, conjugated addition product without hetero ring opening with Grignard reagent, forms corresponding oxime and hydrazone with hydroxyl amine and phenyl hydrazine, respectively, produces polycyclic compounds with enamines, shows contrasting behavior with NBS and gives addition products with organophosphorus compounds in both hydroxylic and non-hydroxylic solvents which depends on reaction medium. In the present mini-review, we have discussed the various synthetic strategies and reactions of 2-(arylidene)benzo[b]thiophen-3(2H)one 1,1-dioxides, along with their reported utilities.\",\"PeriodicalId\":18632,\"journal\":{\"name\":\"Mini-reviews in Organic Chemistry\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":1.9000,\"publicationDate\":\"2023-09-06\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Mini-reviews in Organic Chemistry\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.2174/1570193x21666230906141749\",\"RegionNum\":4,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"CHEMISTRY, ORGANIC\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Mini-reviews in Organic Chemistry","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.2174/1570193x21666230906141749","RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, ORGANIC","Score":null,"Total":0}
Synthetic Approaches and Reactions of 2-(Arylidene)benzo[b]thiophen-3(2H)one-1,1-dioxides
Abstract: 2-(Arylidene)benzo[b]thiophen-3(2H)one 1,1-dioxides are oxidized form of thioaurones. Various methods have been reported for their synthesis, e.g., a) condensation of benzo[b]thiophen-3(2H)one 1,1-dioxides with aryl aldehydes under acidic or basic conditions, b) oxidation of thioaurones with hydrogen peroxide or sodium perborate tetrahydrate, c) from the catalytic reaction of iodonium ylides with (bis(trifluoroacetoxy)iodo) benzene in presence copper(II)acetoacetonate, d)by ring contraction of 1-thioflavones in the presence of ceric ammonium nitrate. The reports have shown addition reactions with p-thiocresol in the absence of any catalyst, conjugated addition product without hetero ring opening with Grignard reagent, forms corresponding oxime and hydrazone with hydroxyl amine and phenyl hydrazine, respectively, produces polycyclic compounds with enamines, shows contrasting behavior with NBS and gives addition products with organophosphorus compounds in both hydroxylic and non-hydroxylic solvents which depends on reaction medium. In the present mini-review, we have discussed the various synthetic strategies and reactions of 2-(arylidene)benzo[b]thiophen-3(2H)one 1,1-dioxides, along with their reported utilities.
期刊介绍:
Mini-Reviews in Organic Chemistry is a peer reviewed journal which publishes original reviews on all areas of organic chemistry including organic synthesis, bioorganic and medicinal chemistry, natural product chemistry, molecular recognition, and physical organic chemistry. The emphasis will be on publishing quality papers very rapidly, without any charges.
The journal encourages submission of reviews on emerging fields of organic chemistry including:
Bioorganic Chemistry
Carbohydrate Chemistry
Chemical Biology
Chemical Process Research
Computational Organic Chemistry
Development of Synthetic Methodologies
Functional Organic Materials
Heterocyclic Chemistry
Macromolecular Chemistry
Natural Products Isolation And Synthesis
New Synthetic Methodology
Organic Reactions
Organocatalysis
Organometallic Chemistry
Theoretical Organic Chemistry
Polymer Chemistry
Stereochemistry
Structural Investigations
Supramolecular Chemistry