Diastereoselective palladium(0)-catalyzed azidation of 1-alkenylcyclopropyl esters: asymmetric synthesis of (−)-(1R,2S)-norcoronamic acid
摘要:
Palladium(0)-catalyzed azidation of (1R,2S)-1-(1-alkenyl)2-methylcyclopropyl esters 10a,b proceeds with complete retention of configuration to provide, after reduction of the azide and oxidative cleavage of the allylic double bond, the (1R,2S)-norcoronamic acid 22 (>99% e.e.). (C) 1998 Elsevier Science Ltd. All rights reserved.
Diastereoselective palladium(0)-catalyzed azidation of 1-alkenylcyclopropyl esters: asymmetric synthesis of (−)-(1R,2S)-norcoronamic acid
摘要:
Palladium(0)-catalyzed azidation of (1R,2S)-1-(1-alkenyl)2-methylcyclopropyl esters 10a,b proceeds with complete retention of configuration to provide, after reduction of the azide and oxidative cleavage of the allylic double bond, the (1R,2S)-norcoronamic acid 22 (>99% e.e.). (C) 1998 Elsevier Science Ltd. All rights reserved.