Synthesis of β-sulfanyl ketones via a tandem rearrangement-conjugate addition reaction catalyzed by a Re(V)-oxo complex
作者:Alyson E. Garst、Alexandra D. Badiceanu、Kristine A. Nolin
DOI:10.1016/j.tetlet.2012.11.047
日期:2013.2
A method for synthesizing β-sulfanyl ketones via a tandem rearrangement and conjugate addition reaction has been developed. This methodology provides access to a range of β-sulfanyl ketones through the rearrangement of propargyl alcohols to the corresponding enones followed by the conjugate addition of unactivated thiols. The one-pot, tandem transformation is catalyzed by ReOCl3(OPPh3)(S(CH3)2) affording
Conjugate addition of unactivated thiols to α,β-unsaturated ketones catalyzed by a bifunctional rhenium(V)–oxo complex
作者:Allan Peng、Ross Rosenblatt、Kristine Nolin
DOI:10.1016/j.tetlet.2012.03.075
日期:2012.5
found to be an efficient bifunctional catalyst for the 1,4-addition of thiols to α,β-unsaturatedketones. The addition of thiophenol derivatives and alkyl thiols proceeds under mild reaction conditions without pre-activation of the thiol or exogenous base. Reactions of aryl, alkyl, and cyclic enones produce the corresponding β-sulfanyl ketones in good to excellent yield.