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ChemicalBook CAS DataBase List 2-MERCAPTOIMIDAZOLE
872-35-5

2-MERCAPTOIMIDAZOLE synthesis

1synthesis methods
-

Yield:-

Reaction Conditions:

with hydrogenchloride

Steps:

1 EXAMPLE 1
The starting material is prepared as follows: To 39,230 ml of 2 N hydrochloric acid, 7,500 g of aminoacetaldehyde dimethylacetal are added during 45 minutes while stirring under nitrogen, followed by 6,932 g of potassium thiocyanate, which are added all at once. The mixture is heated to 98°, stirred for 2 hours and allowed to cool to room temperature overnight. The resulting suspension is stirred and cooled to 5°, filtered and the residue dried at 60°/5 mmHg, to yield the imidazole-2-thiol melting at 224°-226°.

References:

Ciba-Geigy Corporation US4391808, 1983, A

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