Imidazole 4(5)-dithiocarboxylic acids or salts

Details Imidazole 4(5)-dithiocarboxylic acids or salts Imidazole 4(5)-dithiocarboxylic acids or salts

1982-04-21

1983-07-19

Ramsuer, Robert W.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

252341, C07D23384

Patent

active

043945112

ABSTRACT:
Disclosed is an imidazole-4(5)-dithiocarboxylic acid compound represented by the following general formula: ##STR1## wherein R.sub.2 stands for a hydrogen atom or a monovalent hydrocarbon group having up to 20 carbons, R.sub.4 stands for a hydrogen atom or an alkyl group having up to 4 carbon atoms, and X stands for a hydrogen atom or an alkali metal atom.
This compound has an excellent rust preventive action to silver. This compound is prepared according to a process which comprises reacting an imidazole compound represented by the following general formula: ##STR2## wherein R.sub.2 and R.sub.4 are as defined above, with carbon disulfide and an alkali metal hydroxide in the presence of a solvent, and if necessary, acidifying the obtained imidazole compound.

REFERENCES:
patent: 3772315 (1973-11-01), Regel et al.
Kurata et al., Chemical Abstracts, vol. 93, No. 71509d, (1980).

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