Zobrazeno 1 - 10
of 26
pro vyhledávání: '"I. L. Shegal"'
Autor:
I. L. Shegal
Publikováno v:
ChemInform. 28
Publikováno v:
Chemistry of Heterocyclic Compounds. 17:1063-1076
The available data on the reaction of sym-tetrazines with various unsaturated compounds from 1958 to 1980 are systematized. The reaction of sym-tetrazines with alkenes, alkadienes, alkynes, and unsaturated carbocycles and heterocycles are presented.
Autor:
I. Ya. Postovskii, I. L. Shegal
Publikováno v:
Chemistry of Heterocyclic Compounds. 1:296-299
Autor:
I. L. Shegal, I. Ya. Postovskii
Publikováno v:
Chemistry of Heterocyclic Compounds. 1:300-304
Autor:
I. Ya. Postovskii, I. L. Shegal
Publikováno v:
Chemistry of Heterocyclic Compounds. 2:326-329
Publikováno v:
Chemistry of Heterocyclic Compounds. 1:390-393
Autor:
I. L. Shegal, I. Ya. Postovskii
Publikováno v:
Chemistry of Heterocyclic Compounds. 1:92-95
In a study of the aminomethylation of 4-phenyl-1,2,4-triazolinethione-3 (TRIT) it is ascertained that the reaction involves the nitrogen atom of the thioamide group. Salts of TRIT with secondary amines are obtained. It is shown that replacement of N
Autor:
I. L. Shegal, A. Yu. Ermishov
Publikováno v:
Chemistry of Heterocyclic Compounds. 15:1185-1187
Publikováno v:
Chemistry of Heterocyclic Compounds. 10:369-371
Triazole- and tetrazolediazonium sulfates were coupled with aromatic azo components. The effect of the structure and medium on the chromaticity of the azo compounds was studied.
Autor:
I. L. Shegal, L. M. Shegal
Publikováno v:
Chemistry of Heterocyclic Compounds. 8:959-961
Depending on the nature of the heteroring and the hydrazone, a formazan or a heterylazophenylhydrazone are formed in the reaction of an aryl hydrazone with the diazonium salt obtained from a heterocyclic amine. Disproportionate to form a triphenylfor