{"title":"一些4-(2′-羟基)-5-乙基-2-(N, N-二烷基氨基)-1,3-二硫鎓盐的合成","authors":"M. Birsa","doi":"10.1080/02786110310001593643","DOIUrl":null,"url":null,"abstract":"The synthesis of 4-(2′-hydroxyaryl)-5-ethyl-2-(N,N-dialkylamino)-1,3-dithiolium salts (6a–e) has been accomplished by the heterocyclization of the corresponding carbodithioates (3a–e). The required starting materials (1a,b) have been prepared by regioselective bromination of 1-(2′-hydroxyaryl)butanones (4a,b). Under basic conditions, salts 6a–e afford anhydro-hydroxides 7a–e, which are mesoionic compounds with an intramolecular charge-transfer UV/Vis absorption where the donor moiety is linked through σ-bonded bridges (C5-S1, C4-S3) to the acceptor moiety.","PeriodicalId":22122,"journal":{"name":"Sulfur Letters","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2003-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"4","resultStr":"{\"title\":\"Synthesis of some 4-(2′-hydroxyaryl)-5-ethyl-2-(N, N-dialkylamino)-1,3-dithiolium salts\",\"authors\":\"M. Birsa\",\"doi\":\"10.1080/02786110310001593643\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The synthesis of 4-(2′-hydroxyaryl)-5-ethyl-2-(N,N-dialkylamino)-1,3-dithiolium salts (6a–e) has been accomplished by the heterocyclization of the corresponding carbodithioates (3a–e). The required starting materials (1a,b) have been prepared by regioselective bromination of 1-(2′-hydroxyaryl)butanones (4a,b). Under basic conditions, salts 6a–e afford anhydro-hydroxides 7a–e, which are mesoionic compounds with an intramolecular charge-transfer UV/Vis absorption where the donor moiety is linked through σ-bonded bridges (C5-S1, C4-S3) to the acceptor moiety.\",\"PeriodicalId\":22122,\"journal\":{\"name\":\"Sulfur Letters\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2003-08-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"4\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Sulfur Letters\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1080/02786110310001593643\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Sulfur Letters","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1080/02786110310001593643","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Synthesis of some 4-(2′-hydroxyaryl)-5-ethyl-2-(N, N-dialkylamino)-1,3-dithiolium salts
The synthesis of 4-(2′-hydroxyaryl)-5-ethyl-2-(N,N-dialkylamino)-1,3-dithiolium salts (6a–e) has been accomplished by the heterocyclization of the corresponding carbodithioates (3a–e). The required starting materials (1a,b) have been prepared by regioselective bromination of 1-(2′-hydroxyaryl)butanones (4a,b). Under basic conditions, salts 6a–e afford anhydro-hydroxides 7a–e, which are mesoionic compounds with an intramolecular charge-transfer UV/Vis absorption where the donor moiety is linked through σ-bonded bridges (C5-S1, C4-S3) to the acceptor moiety.