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Original scientific paper

4,5,6, 7-Tetrahydroindazol-3-one Carboxylic Acids. II. Reductive Cleavage to Ring Substituted 2-Carboxamide Cyclohexylamine

Đ. Škarić ; Institute »Ruder Boskovic«, Zagreb, Croatia, Yugoslavia
V. Škarić ; Institute »Ruder Boskovic«, Zagreb, Croatia, Yugoslavia
V. Turjak-Zebić ; Institute »Ruder Boskovic«, Zagreb, Croatia, Yugoslavia


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Abstract

The synthesis of diethyl-4,5,6 , 7-tetrahydroindazol-3-one-5,5-
dicarboxylate (I) and its reductive cleavage into 2-carboxamide-
4,4-dicarbethoxy-cyclohexylamine (II) using Raney nickel-catalyst
in iso-propanol and methanol were described.
The reductive opening of I in ethanol favored the formation
of Schiff base, 2-carboxamide - 4,4 - dicarbethoxy - N - ethylidenecyclohexylamine
(III).

Keywords

Hrčak ID:

208353

URI

https://hrcak.srce.hr/208353

Publication date:

31.7.1963.

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