NEW ROUTES TO 1,2-DIAZOLES WITH A FUSED RING SYSTEM BY REDUCTIVE AND OXIDATIVE CYCLIZATIONS
- 5 September 1974
- journal article
- research article
- Published by Oxford University Press (OUP) in Chemistry Letters
- Vol. 3 (9) , 951-954
- https://doi.org/10.1246/cl.1974.951
Abstract
Heating aromatic or heteroaromatic compounds carrying a carbonyl and an arylazo group at adjacent nuclear positions with triethyl phosphite resulted in the formation of a 1,2-diazole ring through reductive cyclizations. Similar, but oxidative, cyclizations were effected by the action of selenium dioxide on compounds with a methylene group at an appropriate position.Keywords
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