The Catalyzed Desulfinylative Allylation of Carbonyl Compounds with Alk-2-enesulfonyl Chlorides and Silyl Alk-2-enesulfinates
作者:Chandra M. R. Volla、Dean Marković、Sylvain Laclef、Pierre Vogel
DOI:10.1002/chem.201000705
日期:——
Coupling up with sulfonyl chlorides: An ene reaction of alkenes with SO2⋅BCl3 permits the one‐pot conversion of simple alkenes into β,γ‐unsaturated sulfonyl chlorides or sulfinic silyl esters. These compounds can then be used as nucleophilic allylating agents with aldehydes and ketones to generate the corresponding homoallylic alcohols (see scheme) with good chemo‐ and diastereoselectivity in the presence
Palladium-catalyzed desulfinylative C–C allylation of Grignard reagents and enolates using allylsulfonyl chlorides and esters
作者:Chandra M. Rao Volla、Srinivas Reddy Dubbaka、Pierre Vogel
DOI:10.1016/j.tet.2008.11.007
日期:2009.1
(E)-but-2-enesulfonyl chlorides have been used as electrophilic partners in desulfinylative palladium-catalyzed C–C coupling with Grignardreagents and sodium salts of dimethyl malonate and methyl acetoacetate. Neopentyl alk-2-ene sulfonates can also be used as electrophilic partners in desulfinylative allylic arylations and allylic alkylations. The regioselectivity of the allylic arylation and alkylation depends