21205-13-0Relevant academic research and scientific papers
Scope and limitations of HClO4-SiO2 as an extremely efficient, inexpensive, and reusable catalyst for chemoselective carbon-sulfur bond formation
Khatik, Gopal L.,Sharma, Gaurav,Kumar, Raj,Chakraborti, Asit K.
, p. 1200 - 1210 (2007)
The scope and limitations of perchloric acid adsorbed on silica gel (HClO4-SiO2) as a highly efficient, inexpensive, and reusable catalyst for chemoselective carbon-sulfur bond formation by conjugate addition of thiols to α,β-unsatur
Sc(III)-catalyzed enantioselective addition of thiols to α,β-unsaturated ketones in neutral water
Bonollo, Simona,Lanari, Daniela,Pizzo, Ferdinando,Vaccaro, Luigi
supporting information; body text, p. 2150 - 2152 (2011/06/21)
Chemical equations presented. This report concerns Lewis acid catalyzed enantioselective sulfa-Michael addition in neutral water by using a very efficient Sc(OTf)3/bipyridine 1 catalytic system. It is noteworthy that the protocol presented empl
A bifunctional cinchona alkaloid-squaramide catalyst for the highly enantioselective conjugate addition of thiols to transchalcones
Dai, Le,Wang, Su-Xi,Chen, Fen-Er
supporting information; experimental part, p. 2137 - 2141 (2010/11/05)
A chiral squaramide catalysts-promoted asymmetric sulfa-Michael conjugated addition of thiols to trans-chalcones is presented. Moderate to excellent yields and high enantioselectivities (up to 99% ee) were achieved under mild conditions.
