作者:Alexander J. Blake、Hamish McNab、Roderick Morrison
DOI:10.1039/p19880002145
日期:——
The X-ray crystal structure of 6-bromopyrrolizin-3-one (2) shows that the lactam unit has a long C–N bond and a short CO bond, although the molecule as a whole is planar. By comparison with data for model compounds it appears that the two rings behave independently, save for a reduced amount of amide-like interaction typical of N-acylazoles. There is no evidence for cyclic delocalisation of the resulting
6-溴吡咯烷嗪-3-one(2)的X射线晶体结构表明,虽然整个分子是平面的,但内酰胺单元具有长的C–N键和短的C O键。通过与模型化合物的数据进行比较,似乎可以看出两个环的行为独立,只是减少了N-酰基唑类化合物典型的酰胺类相互作用。没有证据表明最终的8π电子系统发生循环离域化。