Novel Use of <i>N</i>-Benzoyl-<i>N,O</i>-acetals as <i>N</i>-Acylimine Equivalents in Asymmetric Heterocycloaddition: An Extended Enantioselective Pathway to β-Benzamido Aldehydes
For the first time, easily available N-(alpha-methoxyalkyl)amides were successfully used as synthetic equivalents of N-acylimines in an asymmetric heterocycloaddition process. The facial-controlled formation of 6-alkoxydihydrooxazines was thus achieved by SnCl4-promoted heterocycloaddition of (R)-O-vinyl pantolactone. By simple acidic hydrolysis of the crude heteroadducts, new beta-aryl- and beta-alkyl-substituted benzamido aldehydes were thus obtained in good overall yields with high enantioselectivities.
US8614233B2
申请人:——
公开号:US8614233B2
公开(公告)日:2013-12-24
US9162991B2
申请人:——
公开号:US9162991B2
公开(公告)日:2015-10-20
[EN] CINNAMOYL INHIBITORS OF TRANSGLUTAMINASE<br/>[FR] INHIBITEURS À BASE DE CINNAMOYLE DE LA TRANSGLUTAMINASE
申请人:UNIV MONTREAL
公开号:WO2008144933A1
公开(公告)日:2008-12-04
[EN] A compound of Formula, (I) or Formula: (II) [FR] Composé de formule : (I) ou de formule : (II)