[EN] BORON-BASED CYCLOADDITION CATALYSTS AND METHODS FOR THE PRODUCTION OF BIO-BASED TEREPHTHALIC ACID, ISOPHTHALIC ACID AND POLY (ETHYLENE TEREPHTHALATE)<br/>[FR] CATALYSEURS DE CYCLOADDITION À BASE DE BORE ET PROCÉDÉS POUR LA PRODUCTION D'ACIDE TÉRÉPHTALIQUE, D'ACIDE ISOPHTALIQUE ET DE POLY(TÉRÉPHTALATE D'ÉTHYLÈNE) D'ORIGINE BIOLOGIQUE
申请人:BOARD OF TRUSTEES OF MICHIGAN STATE UNIVERSTY
公开号:WO2017053652A1
公开(公告)日:2017-03-30
Methods for producing cycloaddition products comprising: reacting a diene with a dienophile in the presence of one or more boron-based catalysts of Formula I or Formula II are provided. In particular, the methods can be used to prepare 4-methyl-3-cyclohexene- 1-carboxylic acid and 3-methyl-3-cyclohexene-l-carboxylic acid, including bio-based versions thereof. The cycloaddition products can be advantageously used in the production of terephthalic acid and isophthalic acid, and ultimately, poly(ethylene terephthalate), and bio-based versions thereof. Formula I Formula II