A convenient synthesis of N-benzyloxy-.BETA.-lactams via N-benzyloxyimines.
作者:Kiyoshi IKEDA、Kazuo ACHIWA、Minoru SEKIYA
DOI:10.1248/cpb.37.1179
日期:——
N-Benzyloxy-β-lactams were prepared from N-benzyloxyimines by reaction with ketene trimethylsilyl acetals in the presence of trimethylsilyl triflate followed by cyclization, or with lithium ester enolates in one step.
N-苄氧基-β-内酰胺是通过将N-苄氧基亚胺与亚甲酸三甲硅酯在三甲基硅基三氟甲磺酸盐存在下反应随后进行环化,或与锂酯烯醇盐一步反应制备的。