Synthesis of 4-piperidazinethiols as potential antiradiation agents
作者:Milton J. Kornet、Ralph Daniels
DOI:10.1002/jhet.5570170721
日期:1980.11
The free radical addition of thioacetic acid to 1,2-dicarbethoxy-1,2,3,6-tetrahydropyridazines gave high yields of 1,2-dicarbethoxy-4-S-thiolacetoxypiperidazines. The latter compounds served as the key intermediates in the preparation of 4-piperidazinethiols. The thiolacetoxy derivatives were partially hydrolyzed to afford the related 1,2-dicarbethoxy-4-piperidazinethiols. Complete hydrolysis of the
The hetero-Diels-Alder reaction catalyzed by lanthanum triflate hydrate using diethyl azodicarboxylate as dienophile, yielding differently substituted 1,2,3,6-tetrahydropyridazines, is described.
Copper(II)-catalyzed aerobic oxidation of hydrazides to azo intermediates and their Diels–Alder versus ene trapping
作者:Duangduan Chaiyaveij、Andrew Whiting
DOI:10.24820/ark.5550190.p011.606
日期:——
KORNET M. J.; DANIELS R., J. HETEROCYCL. CHEM., 1980,17, NO 7, 1465-1467