公开(公告)号：US20210122724A1

公开(公告)日：2021-04-29

申请号：US17257667

申请日：2019-07-04

Applicant: ENEOS Corporation

Inventor： Daisuke WATANABE ,  Takahiro HASEGAWA ,  Asako KYOBU

IPC: C07D307/93 ,  C07C69/753 ,  C08G73/10

Abstract: A tetracarboxylic dianhydride which is a compound represented by the following general formula (1): [in the formula (1), A represents one selected from the group consisting of optionally substituted divalent aromatic groups in each of which the number of carbon atoms forming an aromatic ring is 6 to 30, and Ras each independently represent a hydrogen atom or the like], wherein 60% by mass or more of a stereoisomer contained in the compound is an exo/exo type stereoisomer represented by a specific general formula.