threo-Selective Michael Addition of N,N-Dibenzylglycinate and Alaninate Enolates to α,β-Unsaturated Esters. A Concise and Stereoselective Synthesis of (+/-)-CCG-II
Lithium enolates of N,N-dibenzylglycinate and alaninate added to β-substituted α,β-unsaturated esters, and threo-adducts were obtained in high stereoselectivities.The reaction was employed in a concise and stereoselective synthesis of (+/-)-CCG-II.
Yamaguchi, Masahiko,Torisu, Kazuhiko,Minami, Toru
p. 377 - 380
(2007/10/02)
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