Rhodium-catalyzed enantioselective alkynylative cyclization of allenyl aldehydes with terminal alkynes
摘要:
Asymmetric addition of terminal alkynes to allenyl aldehydes took place in the presence of an acetylacetonate complex [Rh(acac)L*] (L* = binap or segphos) as a catalyst to give indanol derivatives in high yields with high regio- and enantioselectivity. The acetylacetonate (acac) ligand on the rhodium is important for the selective formation of the indanol derivatives. (C) 2010 Elsevier Ltd. All rights reserved.
Asymmetric addition of terminal alkynes to allenyl aldehydes took place in the presence of an acetylacetonate complex [Rh(acac)L*] (L* = binap or segphos) as a catalyst to give indanol derivatives in high yields with high regio- and enantioselectivity. The acetylacetonate (acac) ligand on the rhodium is important for the selective formation of the indanol derivatives. (C) 2010 Elsevier Ltd. All rights reserved.