| 摘要 |
PROBLEM TO BE SOLVED: To obtain an alicyclic dicarboxylic acid diester having a new norbornane skeleton, useful as an intermediate raw material for polyester resins, etc., used for base, etc., of photographic film and having a new norbornane skeleton by using an inexpensive dicyclopentadiene as a raw material. SOLUTION: This new alicyclic compound is tetracyclo[7, 2, 0, 1<2.8> or 0<3.7> ]dodecane-10, 11-dicarboxylic acid represented by formula I (R<1> and R<2> are each independently H, a 1-6C alkyl, etc.) or its ester, e.g. dimethyltetracyclo[7, 2, 0, 1<2.8> , 0<3.7> ]dodecane-10, 11-dicarboxylic acid or its diester. Tetracylo[7, 2, 0, 1<2.8> , 0<3.7> ]-dodecane-4,10-diene-10,11-dicarboxylic acid of formula II or its diester is subjected to catalytic reduction due to hydrogen molecule using a metal catalyst to provide the objective compound of formula I. |
