作者:Uro? Urleb、Richard Neidlein、Walter Kramer
DOI:10.1002/hlca.19930760127
日期:1993.2.10
of thiazole and fused thiazolo derivatives 2–4, 6–8, 10a–11b, 13–16 from heterocylic isothiocyanates 1, 5, 9, and 12 bearing an ortho ester group and bifunctional reagents, such as substituted propargylamines, is described. Different regioselectivity of intramolecular nucleophilic attack of the thiourea S-atom on the C C bond, resulting in the formation of both thiazolo and thiazino derivatives, as
的噻唑的合成和稠合的噻唑衍生物2 - 4,6 - 8,10A - 11B,13 - 16从杂环异硫氰酸酯1,5,9,和12承载的原酸酯基团和双官能团的试剂,如被取代的炔丙胺,描述。讨论了硫脲S原子对CC键的分子内亲核攻击的不同区域选择性,导致噻唑基和噻嗪基衍生物的形成,以及NMR结构的阐明。