1,3-Oxazoline- and 1,3-oxazolidine-2-thiones as substrates in direct modified Stille and Suzuki cross-coupling
摘要:
1,3-Oxazoline- (OXT) and 1,3-oxazolidine-2-thiones (OZT) can undergo direct Stille and Suzuki cross-coupling reactions under rnicrowave activation to produce 2-aryloxazoles and 2-aryloxazolines in reasonable to good yields (C) 2008 Published by Elsevier Ltd.
Oxazolinethiones and Oxazolidinethiones for the First Copper-Catalyzed Desulfurative Cross-Coupling Reaction and First Sonogashira Applications
作者:Sandrina Silva、Balla Sylla、Franck Suzenet、Arnaud Tatibouët、Amelia P. Rauter、Patrick Rollin
DOI:10.1021/ol703003e
日期:2008.3.1
chiral oxazolidinethiones (OZT) and aromatic oxazolinethiones (OXT), were involved, for the first time, in Sonogashiracross-coupling. A cooperative effect of two different copper (I) species-CuI and CuTC-accounts for this new copper-catalyzed desulfurative carbon-carbon cross-couplingreaction. This cooperative reactivity could also be extended to other copper (I) catalysts.
d-glucose and d-fructose have been used as starting materials to prepare spiro-1,3-oxazolidine-2-thiones anchored on the third position of both carbohydrates. Following different approaches and depending on the carbohydrate template explored, stereoselective reactions have been developed via the formation of epoxides or aziridines.
1,3-Oxazoline- and 1,3-oxazolidine-2-thiones as substrates in direct modified Stille and Suzuki cross-coupling
作者:Sandrina Silva、Sébastien Tardy、Sylvain Routier、Franck Suzenet、Arnaud Tatibouët、Amelia P. Rauter、Patrick Rollin
DOI:10.1016/j.tetlet.2008.07.023
日期:2008.9
1,3-Oxazoline- (OXT) and 1,3-oxazolidine-2-thiones (OZT) can undergo direct Stille and Suzuki cross-coupling reactions under rnicrowave activation to produce 2-aryloxazoles and 2-aryloxazolines in reasonable to good yields (C) 2008 Published by Elsevier Ltd.