Enantioselective construction of imidazolines having vicinal tetra-substituted stereocenters by direct Mannich reaction of α-substituted α-isocyanoacetates with ketimines
作者:Shuichi Nakamura、Ryota Yamaji、Masaru Iwanaga
DOI:10.1039/c6cc02911f
日期:——
Enantioselective direct Mannich-type reaction of ketimines with α-substituted α-isocyanoacetates gave imidazolines having vicinal tetra-substituted stereocenters with high stereoselectivity.
Process for the continuous preparation of substituted oxazoles
申请人:——
公开号:US20030050478A1
公开(公告)日:2003-03-13
The present invention relates to a process for the continuous preparation of 5-alkoxy-substituted oxazoles, in particular for the continuous preparation of 4-methyl-5-alkoxy-substituted oxazoles, and to a process for preparing pyridoxine derivatives.
The present invention relates to a process for continuously preparing 5-alkoxy-substituted oxazoles, in particular for continuously preparing 4-methyl-5-alkoxy-substituted oxazoles and also a process for preparing pyridoxine derivatives.