화학공학소재연구정보센터
Journal of the American Chemical Society, Vol.129, No.46, 14158-14158, 2007
Rhodium-catalyzed asymmetric rearrangement of alkynyl alkenyl carbinols: Synthetic equivalent to asymmetric conjugate alkynylation of enones
Asymmetric 1,3-rearrangement of an alkynyl group of alkynyl alkenyl carbinols giving beta-alkynylketones took place in high yields with high enantioselectivity in the presence of a hydroxyrhodium/(R )-binap catalyst. The present method including a key beta-alkynyl elimination step in the catalytic cycle is synthetically equivalent to the asymmetric conjugate addition of terminal alkynes to beta-substituted enones.