作者:Shinji Yamada、Akie Homma
DOI:10.1039/b207925a
日期:——
The cisâtrans geometry of a nine-membered lactam significantly depends on the N-substituents; N-acyl-1-aza-2-cyclononanones (1aâc) exist as cis form; in contrast, N-Z-1-aza-2-cyclononanone (1d) exists as trans form both in the crystal and in solution.
九元内酰胺的顺反几何形状在很大程度上取决于 N-取代基;N-酰基-1-氮杂-2-环壬酮(1aâc)以顺式形式存在;相比之下,N-Z-1-氮杂-2-环壬酮(1d)在晶体和溶液中均以反式形式存在。