NORBORNANE-2-SPIRO-A-CYCLOALKANONE-A'-SPIRO-2'-NORBORNANE-5,5',6,6'-TETRACARBOXYLIC DIANHYDRIDE, NORBORNANE-2-SPIRO-A-CYCLOALKANONE-A'-SPIRO-2'-NORBORNANE-5,5',6,6'-TETRACARBOXYLIC ACID AND ESTER THEREOF, METHOD FOR PRODUCING NORBORNANE-2-SPIRO-A-CYCLOALKANONE-A'-SPIRO-2'-NORBORNANE-5,5',6,6'-TETRACARBOXYLIC DIANHYDRIDE, POLYIMIDE OBTAINED USING SAME, AND METHOD FOR PRODUCING POLYIMIDE

摘要

A norbornane-2-spiro-±-cycloalkanone-±'-spiro-2"-norbor nane-5,5",6,6"-tetracarboxylic dianhydride represented by the following general formula (1): [in the formula (1), n represents an integer of 0 to 12, and R 1 s, R 2 , R 3 each independently represents a hydrogen atom or the like].