Lithiation of benzothiazolyl substituted epoxides and reactions with electrophiles
摘要:
Deprotonation of epoxides 1 with n-BuLi or LDA at -90-degrees-C produces dark red solutions of oxiranyllithiums 2 which react with electrophiles leading to oxiranes 3.
2-Benzothiazolylchloromethyllithium: Synthesis of oxiranes
摘要:
Deprotonation of 2-chloromethylbenzothiazole 1 with lithium diisopropylamide (LDA) in tetrahydrofuran (THF) at -78-degrees-C gives a red solution of 2-benzothiazolylchloromethyllithium 2, which couples with carbonyl compounds furnishing oxiranes 3.
Stereoselective synthesis of vinylbenzothiazoles and their epoxides.
作者:S. Florio、G. Ingrosso、L. Ronzini、E. Epifani
DOI:10.1016/s0040-4020(01)86401-2
日期:1991.1
Vinylbenzothiazoles 2 were stereoselectively prepared through isomerization of allylbenzothiazoles 1. Oxiranes 5 and 8 were synthesized from 2 and 1 via cyclization of the corresponding bromohydrins 3, 4, 6 and 7.
2-Benzothiazolylchloromethyllithium: Synthesis of oxiranes
作者:S. Florio、L. Troisi
DOI:10.1016/s0040-4039(00)74787-3
日期:1992.12
Deprotonation of 2-chloromethylbenzothiazole 1 with lithium diisopropylamide (LDA) in tetrahydrofuran (THF) at -78-degrees-C gives a red solution of 2-benzothiazolylchloromethyllithium 2, which couples with carbonyl compounds furnishing oxiranes 3.
Lithiation of benzothiazolyl substituted epoxides and reactions with electrophiles
作者:S. Florio、G. Ingrosso、L. Troisi、V. Lucchini
DOI:10.1016/s0040-4039(00)91796-9
日期:1993.2
Deprotonation of epoxides 1 with n-BuLi or LDA at -90-degrees-C produces dark red solutions of oxiranyllithiums 2 which react with electrophiles leading to oxiranes 3.