Soluble late transition metal catalysts for olefin oligomerizations III
申请人:Zhao Baiyi
公开号:US20060036049A1
公开(公告)日:2006-02-16
A series of soluble α-diimine late transition metal catalysts has been invented comprising a substituted or unsubstituted catecholate ligand. The catalysts demonstrate high activity and selectivity for linear α-olefins. As such, these catalysts conveniently oligomerize ethylene. Typical activators as known to those of ordinary skill in the art are used to activate these transition metal catalysts. These catalysts can be used in a supported or unsupported form.
SOLUBLE LATE TRANSITION METAL CATALYSTS FOR OLEFIN OLIGOMERIZATIONS III
申请人:ExxonMobil Chemical Patents Inc.
公开号:EP1620447A1
公开(公告)日:2006-02-01
[EN] SOLUBLE LATE TRANSITION METAL CATALYSTS FOR OLEFIN OLIGOMERIZATIONS III<br/>[FR] CATALYSEURS A BASE DE METAUX DE TRANSITION TARDIFS SOLUBLES POUR OLIGOMERISATIONS III D'OLEFINES
申请人:EXXONMOBIL CHEM PATENTS INC
公开号:WO2003102006A1
公开(公告)日:2003-12-11
A series of soluble a-diimine late transition metal catalysts has been invented comprising a substituted or unsubstituted catecholate ligand. The catalysts demonstrate high activity and selectivity for linear a-olefins. As such, these catalysts conveniently oligomerize ethylene. Typical activators as known to those of ordinary skill in the art are used to activate these transition metal catalysts. These catalysts can be used in a supported or unsupported form.
Structure, stereochemistry and synthesis of enantiopure cyclohexenone cis-diol bacterial metabolites derived from phenols
作者:Derek R. Boyd、Narain D. Sharma、John F. Malone、Peter B. A. McIntyre、Paul J. Stevenson、Christopher C. R. Allen、Marcin Kwit、Jacek Gawronski
DOI:10.1039/c2ob25079a
日期:——
Biotransformation of 3-substituted and 2,5-disubstituted phenols, using whole cells of P. putida UV4, yielded cyclohexenone cis-diols as single enantiomers; their structures and absolute configurations have been determined by NMR and ECD spectroscopy, X-ray crystallography, and stereochemical correlation involving a four step chemoenzymatic synthesis from the corresponding cis-dihydrodiol metabolites