Method for preparing 2H-tetrazolium chloride and 2H-tetrazolium

Details Method for preparing 2H-tetrazolium chloride and 2H-tetrazolium Method for preparing 2H-tetrazolium chloride and 2H-tetrazolium

1976-12-06

1979-03-06

Tovar, Jose

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07D25704, A01N 912

Patent

active

041430492

ABSTRACT:
A method for preparing 2H-tetrazolium chloride hydrochlorides having the general formula ##STR1## where R.sub.1 and R.sub.2 are H, OH, NO.sub.2, Cl, or OCH.sub.2 COOH, and n is from 0 to 3, and also di-2H-tetrazolium chloride hydrochloride having the formula ##STR2## wherein the corresponding formazans are oxidized with chlorine in a medium of a polar organic solvent at a temperature from -5.degree. to +20.degree. C.

REFERENCES:
patent: 2713581 (1955-07-01), Pannone et al.
Nineham, "The Chemistry of Formazans and Tetrazolium Salts", Chem. Reviews, 55, pp. 403-405 (1955).

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