我们在这里报告通过噻唑并[3,2- a ]苯并咪唑鎓或苯并咪唑并[2,1- b ] [1,3]苯并噻唑的开环合成高度官能化的1,3-二氢-2H-苯并咪唑-2-酮-6-ium盐和醇盐异常的C–O键裂解。以高收率获得了多种带有原始N-硫代烯基或N-(邻硫代)芳基的苯并咪唑酮。先进的化学方法可快速有效地访问特权的苯并咪唑-2-酮骨架。
我们在这里报告通过噻唑并[3,2- a ]苯并咪唑鎓或苯并咪唑并[2,1- b ] [1,3]苯并噻唑的开环合成高度官能化的1,3-二氢-2H-苯并咪唑-2-酮-6-ium盐和醇盐异常的C–O键裂解。以高收率获得了多种带有原始N-硫代烯基或N-(邻硫代)芳基的苯并咪唑酮。先进的化学方法可快速有效地访问特权的苯并咪唑-2-酮骨架。
Copper-catalyzed aminothiolation of terminal alkynes with tunable regioselectivity
作者:Jinqiang Kuang、Yuanzhi Xia、An Yang、Heng Zhang、Chenliang Su、Daesung Lee
DOI:10.1039/c8cc09122f
日期:——
A simple, mild, and efficient catalytic aminothiolation of terminal alkynes for the synthesis of both 2- and 3-substituted thiazolo[3,2-a]benzimidazoles is established upon catalysis with copper(I), in which complementary regioselectivities could be achieved by using sterically different phenanthroline-based ligands.
通过铜(I)催化建立了一种简单,温和且有效的末端炔烃催化氨基巯基化反应,用于合成2-和3-取代的噻唑并[3,2- a ]苯并咪唑,其中可通过以下方法实现互补的区域选择性:使用空间不同的基于菲咯啉的配体。
Domino Michael addition-carbene rearrangement-cyclization reaction of 1-alkynyl(aryl)-λ3-bromanes with 2-mercapto-1,3-benzazoles
作者:Masahito Ochiai、Norihiro Tada
DOI:10.1039/b509269h
日期:——
Exposure of 1-alkynyl[p-(trifluoromethyl)phenyl](tetrafluoroborato)-λ3-bromanes to 2-mercaptobenzimidazole or benzothiazole in dichloromethane at 0 °C under argon resulted in a domino Michael additionâcarbene rearrangementâcyclization reaction to produce directly tricyclic heterocycles in high yields, whereas the reaction with 2-mercaptobenzoxazole afforded 1-alkynyl sulfides.
在二氯甲烷中,将 1-炔基[对-(三氟甲基)苯基](四氟硼酸根)-δ "3-溴与 2-巯基苯并咪唑或苯并噻唑在 0 °C 的氩气环境下接触,会发生多米诺迈克尔加成-羰基重排-环化反应,直接生成高产率的三环杂环,而与 2-巯基苯并恶唑的反应则生成 1-炔基硫化物。
Copper-Catalyzed Synthesis of N-Fused Heterocycles through Regioselective 1,2-Aminothiolation of 1,1-Dibromoalkenes
作者:Hui Xu、Yin Zhang、Jianqiang Huang、Wanzhi Chen
DOI:10.1021/ol101563f
日期:2010.8.20
The first aminothiolation of 1,1-dibromoalkene is described using an inexpensive copper/N,N-dimethylethylenediamine catalyst. The method provides a powerful means of using easily available 1,1-dihaloalkenes as precursors to fused heterocycles.
Isothiourea derivatives
申请人:Glickman Fraser
公开号:US20070161618A1
公开(公告)日:2007-07-12
The present invention relates to isothiourea derivatives, processes for their production, their uses, in particular in transplantation, autoimmune or infectious diseases, and pharmaceutical compositions containing them.