New cyclopentadienyl, indenyl or fluorenyl substituted phosphine compounds and their use in catalytic reactions
申请人:Evonik Degussa GmbH
公开号:EP1894938A1
公开(公告)日:2008-03-05
The invention is directed to a phosphine compound represented by general formula (1)
wherein
R' and R" independently are selected from alkyl, cycloalkyl and 2-furyl radicals, or R' and R" are joined together to form with the phosphorous atom a carbon-phosphorous monocycle comprising at least 3 carbon atoms or a carbon-phosphorous bicycle; the alkyl radicals, cycloalkyl radicals, and carbon-phosphorous monocycle being unsubstituted or substituted by at least one radical selected from the group of alkyl, cycloalkyl, aryl, alkoxy, and aryloxy radicals;
Cps is a partially substituted or completely substituted cyclopentadien-1-yl group, including substitutions resulting in a fused ring system, and wherein a substitution at the 1-position of the cyclopentadien-1-yl group is mandatory when the cyclopentadien-1-yl group is not part of a fused ring system or is part of an indenyl group. Also claimed is the use of these phosphines as ligands in catalytic reactions and the preparation of these phosphines.
Synthesis, properties and structures of methyldiphenylphosphonium 1-indenylide, 1-C9H6PMePh2, and its chiral tricarbonylchromium(0) complex Cr(η5-1-C9H6PMePh2)(CO)3
作者:John H. Brownie、Michael C. Baird
DOI:10.1016/j.jorganchem.2008.05.027
日期:2008.8
1-C9H6PMePh2 (1) and its chromium(0) complex, Cr(η5-1-C9H6PMePh2)(CO)3 (2) have been synthesized and characterized spectroscopically and crystallographically. The structures and properties of 1 and 2 are compared with those of the analogous C5H4PMePh2 and its chromium complex, Cr(η5-C5H4PMePh2)(CO)3. Compound 2, obtained as a racemic mixture, exhibits planar chirality resulting from coordination of the
迄今未知茚衍生的叶立德,methyldiphenylphosphonium 1- indenylide,1-C 9 H ^ 6 PMePh 2(1)和它的铬(0)配合物,铬(η 5 -1-C 9 H ^ 6 PMePh 2)(CO)3(2)已经合成并且在光谱和晶体学上表征。的结构和性能的1和2与这些类似的C相比,5 ħ 4 PMePh 2和它的铬络合物,铬(η 5 -C 5 H ^ 4 PMePh2)(CO)3。作为外消旋混合物获得的化合物2由于前手性芳族配体的配位而显示出平面手性。
Facile <i>meso</i> to <i>rac</i> Isomerization of the Bis-Planar Chiral Ferrocenyldiphosphine Bis(1-(diphenylphosphino)-η<sup>5</sup>-indenyl)iron(II)
作者:Owen J. Curnow、Glen M. Fern
DOI:10.1021/om020200e
日期:2002.7.1
The meso isomer of the ferrocenyldiphosphine bis(1-(diphenylphosphino)-η5-indenyl)iron(II) isomerizes to the rac isomer overnight in tetrahydrofuran at room temperature. The isomerization is accelerated by salts but does not occur in chloroform solvent.
CYCLOPENTADIENYL, INDENYL OR FLUORENYL SUBSTITUTED PHOSPHINE COMPOUNDS AND THEIR USE IN CATALYTIC REACTIONS
申请人:Plenio Herbert
公开号:US20090253907A1
公开(公告)日:2009-10-08
A phosphine compound represented by general formula (1)
wherein
R′ and R″ independently are selected from alkyl, cycloalkyl and 2-furyl radicals, or R′ and R″ are joined together to form with the phosphorous atom a carbon-phosphorous monocycle including at least 3 carbon atoms or a carbon-phosphorous bicycle; the alkyl radicals, cycloalkyl radicals, and carbon-phosphorous monocycle being unsubstituted or substituted by at least one radical selected from the group of alkyl, cycloalkyl, aryl, alkoxy, and aryloxy radicals;
Cp
s
is a partially substituted or completely substituted cyclopentadien-1-yl group, including substitutions resulting in a fused ring system, and wherein a substitution at the 1-position of the cyclopentadien-1-yl group is mandatory when the cyclopentadien-1-yl group is not part of a fused ring system or is part of an indenyl group. These phosphines can be used as ligands in catalytic reactions.
New Cyclopentadienyl, Indenyl or Fluorenyl Substituted Phosphine Compounds and their Use in Catalytic Reactions
申请人:PLENIO Herbert
公开号:US20120245348A1
公开(公告)日:2012-09-27
Disclosed herein are phosphine compounds represented by the general formula (4):
and corresponding phosphonium salts represented by the general formula (4a):
Also disclosed are processes for the preparation of these phosphines and phosphonium salts as well as their use as ligands in catalytic reactions.