Steric effects in the cyclisation of diazoalkenes: a new route to 1,2-benzodiazepines
- 1 January 1970
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society D: Chemical Communications
- No. 15,p. 909-910
- https://doi.org/10.1039/c29700000909
Abstract
The sodium salts of the tosylhydrazones of α-dialkylmethylenecyclopentanones do not cyclise to give 3H-pyrazoles but decompose via loss of nitrogen to give dienes, whereas their diarylmethylene analogues cyclise to give 1,2-benzodiazepines in good yield.Keywords
This publication has 0 references indexed in Scilit: