Sulfur dioxide - imidazole adducts

Details Sulfur dioxide - imidazole adducts Sulfur dioxide - imidazole adducts

1974-02-26

1976-03-09

Winters, Sherman D.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260309, C07D23504

Patent

active

039431460

ABSTRACT:
The disclosed compounds are adducts of imidazole or derivatives thereof and sulfur dioxide. The adducts are apparently of the Lewis acid-Lewis base type, and are useful as latent curing agents for epoxide resins. The adducts are prepared by interacting the imidazole and sulfur dioxide under anhydrous conditions. Equimolar imidazole-SO.sub.2 adducts can serve as a source of sulfur dioxide at room temperature.

REFERENCES:
patent: 3502578 (1970-03-01), Raifsnider
Die Makromolekulare Chemie, 126 : 16-22, (1969), Matsuda et al.

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