Highly efficient synthesis of vinyl substituted triazoles by Au(I) catalyzed alkyne activation
作者:Haifeng Duan、Wuming Yan、Sujata Sengupta、Xiaodong Shi
DOI:10.1016/j.bmcl.2009.03.096
日期:2009.7
Au(I) catalyzed 1,2,3-triazole addition to non-activated alkyne was reported. A large group of substituted NH-1,2,3-triazoles were suitable for this transformation along with both internal and terminal alkynes. The N-1 and N-2 vinyl substituted 1,2,3-triazoles were prepared in up to 98% yield with as low as 0.2% catalyst loading, thereby providing a new protocol for the synthesis of potentially biological-active vinyl-triazole building blocks. (C) 2009 Elsevier Ltd. All rights reserved.
US5233046A
申请人:——
公开号:US5233046A
公开(公告)日:1993-08-03
US5374701A
申请人:——
公开号:US5374701A
公开(公告)日:1994-12-20
[EN] DIARYLACETYLENES, ENAMINES AND ACETYLENIC POLYMERS AND THEIR PRODUCTION
申请人:HAY, Alan, S.
公开号:WO1993009079A1
公开(公告)日:1993-05-13
(EN) Diarylacetylenes and diarylenamines are synthesized from a Schiff's base and an N-arylmethylheterocycle; these compounds are useful as intermediates for a variety of polymers; in particular an efficient process is provided for producing diaryl acetylenes useful in the efficient production of acetylene group-containing polymers which can be cross-linked to produce high strength polymers free of structural defects such as conventionally arise as a result of liberation of volatiles during the cross-linking.(FR) Des diarylacétylènes et des diarylénamines sont synthétisés à partir d'une base de Schiff et d'un hétérocycle N-arylméthyle. Ces composés peuvent être utilisés comme intermédiaires pour une variété de polymères. On décrit en particulier un procédé efficace permettant de produire des acétylènes de diaryle pouvant être utilisés pour la production efficace de polymères contenant des groupes acétylène et pouvant être réticulés pour produire des polymères hautement résistants et dépourvus de défauts structuraux qu'entraîne généralement la libération de produits volatils au cours de la réticulation.
Gold(<scp>i</scp>) catalysed regio- and stereoselective intermolecular hydroamination of internal alkynes: towards functionalised azoles
作者:Christophe Michon、Joachim Gilbert、Xavier Trivelli、Fady Nahra、Catherine S. J. Cazin、Francine Agbossou-Niedercorn、Steven P. Nolan
DOI:10.1039/c9ob00587k
日期:——
Gold(I) catalysed regio- and stereoselective intermolecular hydroamination of internal alkynes was developed for the effective synthesis of a series of (Z)-functionalised vinylazoles under solvent free conditions. The catalytic hydrogenation of the resulting enamines leads to substituted saturated azoles in good yields.