Synthesis, structures, and properties of new sterically hindered hydrazine-based catecholaldimines


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New sterically hindered catecholaldimines derived from hydrazine were synthesized in high yields. Two procedures for the synthesis of sterically hindered catecholaldimines were developed: by the reaction of 4,6-di-tert-butyl-2,3-dihydroxybenzaldehyde with hydrazines (hydrazine hydrate, phenyl-, 1,1-diphenyl-, and (diphenylmethylene)hydrazines, acetyl and benzoyl hydrazides) or by the reaction of 3,5-di-tert-butyl-6-(hydrazonomethyl)catechol with a carbonyl compound (the reaction with 4-N,N-dimethylaminobenzaldehyde). The X-ray diffraction analysis and IR, UV, and NMR spectroscopic studies showed that these compounds exist in the catecholic form both in solution and the crystalline state.

Sobre autores

M. Arsenyev

G. A. Razuvaev Institute of Organometallic Chemistry, Russian Academy of Sciences

Autor responsável pela correspondência
Email: mars@iomc.ras.ru
Rússia, 49 ul. Tropinina, Nizhny Novgorod, 603137

N. Khamaletdinova

G. A. Razuvaev Institute of Organometallic Chemistry, Russian Academy of Sciences

Email: mars@iomc.ras.ru
Rússia, 49 ul. Tropinina, Nizhny Novgorod, 603137

E. Baranov

G. A. Razuvaev Institute of Organometallic Chemistry, Russian Academy of Sciences

Email: mars@iomc.ras.ru
Rússia, 49 ul. Tropinina, Nizhny Novgorod, 603137

S. Chesnokov

G. A. Razuvaev Institute of Organometallic Chemistry, Russian Academy of Sciences

Email: mars@iomc.ras.ru
Rússia, 49 ul. Tropinina, Nizhny Novgorod, 603137

V. Cherkasov

G. A. Razuvaev Institute of Organometallic Chemistry, Russian Academy of Sciences

Email: mars@iomc.ras.ru
Rússia, 49 ul. Tropinina, Nizhny Novgorod, 603137

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