Studies on seven-membered heterocycles. XXXI. Synthesis of 1,4-oxazepinones and 1,4-diazepinones from 2-pyridones and their conversion into fully unsaturated 1,4-oxazepines and 1,4-diazepines.
Preparation of functionalised monobactams from pyridones
摘要:
A novel synthesis of functionalised monobactams in high isolated yields is described. The procedure involves photochemical cyclisation of commercially available 2-pyridones followed by ring-opening cross-metathesis. (C) 2009 Elsevier Ltd. All rights reserved.