caa a22 4500 445876433 CHVBK 20180317145529.0 cr unu---uuuuu 170323e20110701xx s 000 0 eng 10.1007/s10593-011-0778-0 doi (NATIONALLICENCE)springer-10.1007/s10593-011-0778-0 Synthesis of 1-aryl(hetaryl)pyrazol-5-ols and azopyrazoles on their basis [Elektronische Daten] [D. Kuznetsov, A. Ruchkina, K. Kobrakov] Treatment of 3,5-dichloropyrid-2-ylhydrazine, and of mono- and dinitrophenylhydrazines with acetoacetic ester gave hydrazones and the products of their cyclization, namely pyrazolols. It was shown that acetoacetic ester 2,4-dinitrophenylhydrazone cyclizes to the pyrazolol only by using PPA while other studied hydrazones undergo tarring under these conditions. The products of azocoupling of pyrazolols with 3-diazonio-4-hydroxy-5-nitrobenzenesulfonate or 2-hydroxy-5-nitrophenyldiazonium salts are able to color textile materials. The fungicidal activity of the synthesized compounds has been studied. Springer Science+Business Media, Inc., 2011 azopyrazoles nationallicence acetoacetic ester nationallicence hydrazones nationallicence 3,5-dichloropyrid-2-ylhydrazine nationallicence mono- and dinitrophenylhydrazine nationallicence pyrazol-5-ols nationallicence biological activity nationallicence coloration nationallicence Kuznetsov D. A. N. Kosygin State Textile University, 1 Malaya Kaluzhskaya St., 119071, Moscow, Russia aut Ruchkina A. A. N. Kosygin State Textile University, 1 Malaya Kaluzhskaya St., 119071, Moscow, Russia aut Kobrakov K. A. N. Kosygin State Textile University, 1 Malaya Kaluzhskaya St., 119071, Moscow, Russia aut Chemistry of Heterocyclic Compounds Springer US; http://www.springer-ny.com 47/4(2011-07-01), 441-447 0009-3122 47:4<441 2011 47 10593 https://doi.org/10.1007/s10593-011-0778-0 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10593-011-0778-0 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Kuznetsov D. A. N. Kosygin State Textile University, 1 Malaya Kaluzhskaya St., 119071, Moscow, Russia aut NATIONALLICENCE 700 1- Ruchkina A. A. N. Kosygin State Textile University, 1 Malaya Kaluzhskaya St., 119071, Moscow, Russia aut NATIONALLICENCE 700 1- Kobrakov K. A. N. Kosygin State Textile University, 1 Malaya Kaluzhskaya St., 119071, Moscow, Russia aut NATIONALLICENCE 773 0- Chemistry of Heterocyclic Compounds Springer US; http://www.springer-ny.com 47/4(2011-07-01), 441-447 0009-3122 47:4<441 2011 47 10593 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer