1212Provided are: a novel carboxylic acid ester compound useful as a fragrant component or a compound fragrance element a method for producing the carboxylic acid ester compound and a fragrant composition containing the carboxylic acid ester compound. Further provided is an acyl fluoride of 2 4 dimethyl bicyclo[2.2.2]octane compound and an ester thereof which are useful as the starting material (including an intermediate in organic synthesis) of a drug an agricultural chemical a fragrance a functional resin an optically functional material an electronically functional material and the like. The carboxylic acid ester compound is represented by general formula (1). (In the formula one of R and R is a methyl group and the other of R and R is COOR R being an alkyl group having 1 4 carbon atoms.)
