Synthesis of 5-oxo-l-pipecolic acid derivatives by rhodium(II) acetate catalyzed cyclization of diazoketones
摘要:
A convenient synthesis of 5-oxo-L-pipecolic acid derivatives is described. The key step involves the rhodium(II) acetate catalyzed N-H insertion reaction of diazoketones, which are derived from L-glutamic acid.
Synthesis of 5-oxo-l-pipecolic acid derivatives by rhodium(II) acetate catalyzed cyclization of diazoketones
作者:Kwang-Youn Ko、Kee-In Lee、Wan-Loo Kim
DOI:10.1016/s0040-4039(00)61009-2
日期:1992.10
A convenient synthesis of 5-oxo-L-pipecolic acid derivatives is described. The key step involves the rhodium(II) acetate catalyzed N-H insertion reaction of diazoketones, which are derived from L-glutamic acid.
Regioselective Amidation of Aspartic and Glutamic Acid
作者:Kee-In Lee、Jae Hak Kim、Kwang-Youn Ko、Wan-Joo Kim
DOI:10.1055/s-1991-26610
日期:——
The synthesis of N-protected aspartic 1-amide and glutamic 1-amide from aspartic and glutamic acids via regioselective amidation of intermediate 5-oxazolidinone derivatives with aqueous ammonia or amine is described.
本发明描述了以天冬氨酸和谷氨酸为原料,通过 5-oxazolidinone 衍生物中间体与水氨或胺的区域选择性酰胺化反应,合成 N 保护的天冬 1-酰胺和谷氨酸 1-酰胺的过程。