Pyridine → HCID 178504394, compound

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Reaction Steps

The crude 3-(1-adamantyl)-4-tert.butyldimethylsilyloxybenzoic acid, prepared starting with 3.8 g (9.95 mmoles) of the corresponding acid, described in Example 3 of European Patent No. 0.232.199, is dissolved in 40 ml of dichloromethane. The solution is slowly added to a mixture of 1.54 g (9.95 mmoles) of 4-mercaptobenzoic acid and 15 ml of pyridine. The reaction mixture is stirred at ambient temperature for 12 hours, evaporated to dryness, taken up in water and acidified to pH 5 with IN HCl. The solid is filtered, washed with water, ground with 50 ml of ethyl ether and dried at 60° C. under a vacuum. 5 g (96% yield) of a white powder whose melting point is 232°-233° C. are recovered.

Provenance & Evidence