The Reaction of Hydrazine with α‐Cyanocinnamate Esters: A Caveat
作者:Paul J. Erdman、Jimmy L. Gosse、Jamey A. Jacobson、David E. Lewis
DOI:10.1081/scc-120028648
日期:2004.12.31
Abstract α‐Cyanocinnamate esters react with hydrazine to give initial products of conjugate addition that then undergo a fragmentation to give the azine of the carbonyl precursor to the starting ester, rather than intramolecular aminolysis to give the pyrazolidinone.
The present investigation involved the synthesis of a number of novel benzylidene hydrazides as candidate cytotoxic agents. The preparation of these compounds from terephthalic acid and isophthalic acid proceeded satisfactorily. However, the reaction of phthalic acid hydrazide with various aryl aldehydes was unsuccessful in general. Some of the unexpected products were identified. The shapes and also
Symmetrical and unsymmetrical aldazines are efficiently converted to 2,5-disubstituted-1,3,4-oxadiazoles by oxidation with bis(trifluoroacetoxy)iodobenzene (BTI). (c) 2005 Elsevier Ltd. All rights reserved.
Aspects of acyclic azine chemistry—I. The effect of structure and solvents on the electronic absorption spectra of benzaldazine, o-, m- and p-hydroxybenzaldazines
作者:E.Chukwuemeka Okafor
DOI:10.1016/0584-8539(80)80117-6
日期:1980.1
ASYMMETRIC AZINE COMPOUND AND METHOD FOR PRODUCING THE SAME