Nfk. Kaiser et al., Microwave-mediated palladium-catalyzed asymmetric allylic alkylation; an example of highly selective fast chemistry, J ORGMET CH, 603(1), 2000, pp. 2-5
Highly enantioselective palladium-catalyzed microwave-mediated fast chemist
ry has been performed on dimethyl malonate alkylation of(rac)-1,3-diphenyla
llyl-1-acetate (1). Utilizing the recently developed palladium-phosphineoxa
zoline catalytic system, with general stability at elevated temperatures (l
ess than or equal to 145 degrees C), quantitative yields of greater than or
equal to 97% and ee values of up to >99% were obtained after very short ir
radiation times (15-300 s, TOF up to 7000 h(-1)). (C) 2000 Elsevier Science
S.A. All rights reserved.