Process for the production of thiocarbohydrazide

Details Process for the production of thiocarbohydrazide Process for the production of thiocarbohydrazide

1989-03-17

1990-08-07

Raymond, Richard L.

Organic compounds -- part of the class 532-570 series

Organic compounds

Amino nitrogen containing

C07C24102

Patent

active

049469959

ABSTRACT:
TCH is produced by a process which does not require expensive measures to remove hydrazine. In this process, hydrazinium dithiocarbazinate is reacted with an amine other than hydrazine or a strong base, optionally in the presence of water. It is preferred that a sulfur suppressing compound also be included in the reaction mixture. The precipitated TCH is removed from the reaction mixture to leave a mother liquor. Hydrazinium-dithiocarbazinate may then be added to the mother liquor. TCH precipitates and may be readily recovered.

REFERENCES:
patent: 2726263 (1955-12-01), Audrieth et al .
patent: 3198698 (1965-08-01), Reuter et al .
patent: 4172092 (1979-10-01), Malone
patent: 4294985 (1981-10-01), Cramm et al.
Guha et al., Journal of Chem. Soc., 125, pp. 1215, 1924.

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