Ni-Catalyzed Site-Selective Dicarboxylation of 1,3-Dienes with CO<sub>2</sub>
作者:Andreu Tortajada、Ryo Ninokata、Ruben Martin
DOI:10.1021/jacs.7b13220
日期:2018.2.14
A site-selective catalytic incorporation of multiple CO2 molecules into 1,3-dienes en route to adipic acids is described. This protocol is characterized by its mildconditions, excellent chemo- and regioselectivity and ease of execution under CO2 (1 atm), including the use of bulk butadiene and/or isoprene feedstocks.
描述了一种位点选择性催化将多个 CO2 分子结合到 1,3-二烯到己二酸的过程中。该协议的特点是条件温和,具有出色的化学和区域选择性,并且在 CO2 (1 atm) 下易于执行,包括使用散装丁二烯和/或异戊二烯原料。
[EN] CONTINUOUS DEHYDROGENATION OF 1,4-CARBOXYLATE SUBSTITUTED CYCLOHEXENES<br/>[FR] DÉSHYDROGÉNATION EN CONTINU DE CYCLOHEXÈNES SUBSTITUÉS PAR 1,4-CARBOXYLATE
申请人:AMYRIS INC
公开号:WO2012082725A1
公开(公告)日:2012-06-21
A method which comprises contacting the cyclohexene ring containing compounds having carboxylate derivatives at the 1 and 4, and optionally the 2, positions with one or more dehydrogeoation catalysts, optionally in the presence of one or more oxidants, in a continuous flow mode under conditions such that compounds containing an aromatic ring with carboxylate derivatives at the 1. and 4 positions, and optionally the 2 position, are prepared. The invention also relates to such compounds derived from starting materials derived from renewable resources.
PREPARATION OF TRANS,TRANS MUCONIC ACID AND TRANS,TRANS MUCONATES
申请人:Frost John W.
公开号:US20100314243A1
公开(公告)日:2010-12-16
The present invention relates to the isomerization of cis,cis and/or cis,trans muconic acid or esters thereof to trans,trans muconic acid or esters thereof and to the esterification of such muconic acids.
본 발명은 아세틸렌과 디메틸뮤코네이트를 사용한 부가 고리화 반응을 이용하여 기존의 상업적 공정과 다르게 원 포트(one-pot)로 디메틸테레프탈레이트를 제조하는 방법에 관한 것으로서, 본 발명의 제조방법은 기존의 방법에 비해 매우 간단하며 생물 유래의 뮤콘산 및 생물 유래의 아세틸렌을 사용할 수 있어 친환경적일 뿐만 아니라, 경제적이고 효율적이다.
A method for cycloaddition of dimethyl muconate is disclosed. According to the method, a direct transferring of a solid phase trans,trans-dimehtyl muconate into a reactor pre-filled with ethylene gas increases the efficiency of the reaction and suppress side reactions resulting an improvements in yield and purity. Furthermore, the method is capable of obtaining a high yield of dimethylcyclohex-2-en-1,4-dicarboxylate at a lower cost, and therefore is also useful for the mass synthesis of dimethyl terephthalate.