Synthesis of 1H- and SH-l,3=diazepines from azido- and tetrazolo-pyridines ... Ales Reisinger and Curt Wentrup" Chemistry Department, The University of Queensland, Brisbane, Queensland 4072, Australia ... Stable lH-1,3-diazepines 7-9, 10, 13, 14, 17 and 19 are obtained, often in high yields, by photolysis of trifluoromethyl-substituted azido- or tetrazolo-pyridines in the presence of alcohols or amines; in some cases, SH-1,3-diazepines are also formed (11,21 and 23).
![6-chloro-8-ethoxytetrazolo[1,5-a]pyridine Structure](https://image.chemsrc.com/caspic/147/177212-03-2.png)
