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 of highly substituted indene derivatives by Brønsted acid catalyzed Friedel–Crafts reaction of homoallylic alcohols
作者:Xiaoxiang Zhang、Wan Teng Teo、Weidong Rao、Dik-Lung Ma、Chung-Hang Leung、Philip Wai Hong Chan
DOI:10.1016/j.tetlet.2014.05.027
日期:2014.7
An efficient synthetic method to prepare highly substituted indenes in moderate to excellent yields that relies on Brønsted acid catalyzed Friedel–Crafts reaction of homoallylic alcohols under mild conditions is described.
Ozonolysis of a series of 1-substituted indenes. The substituent steric effects on the ozonide exo/endo ratios
作者:Masahiro Miura、Masatomo Nojima、Shigekazu Kusabayashi、Kevin J. McCullough
DOI:10.1021/ja00322a032
日期:1984.5
Ozonolyse d'une serie d'indenes disubstitues (-1,2 et -1,3) et trisubstitues (-1,2,3) dans CCl 4
Ozonolyse d'une serie d'indenes dissubstitues (-1,2 et -1,3) et trisubstitues (-1,2,3) dans CCl 4
Synthesis of Ruthenium Carbonyl Complexes with Phosphine or Substituted Cp Ligands, and Their Activity in the Catalytic Deoxygenation of 1,2-Propanediol
作者:Prasenjit Ghosh、Paul J. Fagan、William J. Marshall、Elisabeth Hauptman、R. Morris Bullock
DOI:10.1021/ic900413y
日期:2009.7.20
CpRu[P-(OPh)3]2(η2-H2)}+OTf − that was converted at −20 °C to the dihydride complex CpRu[P(OPh)3]2(H)2}+OTf −. These Ru complexes serve as catalyst precursors for the catalyticdeoxygenation of 1,2-propanediol to give n-propanol. The catalytic reactions were carried out in sulfolane solvent with added HOTf under H2 (750 psi) at 110 °C.
由Ru的反应制备具有大的四取代的Cp配体(Cp i Pr 4)Ru(CO)2 H(Cp i Pr 4 = C 5(i -C 3 H 7)4 H)的氢化钌。3(CO)12与1,2,3,4-四异丙基环戊二烯。通过X射线晶体学测定(Cp i Pr 4)Ru(CO)2 H的分子结构。氢化钌络合物(C 5 Bz 5)Ru(CO)2 H(Bz = CH 2Ph)的制备方法与此类似。Ru-Ru键合二聚体[(1,2,3-三甲基茚基)Ru(CO)2 ] 2是由1,2,3-三甲基茚与Ru 3(CO)12的反应及其质子化反应制得的二聚体HOTf给出[(1,2,3-三甲基茚基)的Ru(CO)2 ] 2 - (μ-H)} +光学传递函数- 。通过Cp(CO)反应制备了一系列氢化钌配合物CpRu(CO)(L)H [L = P(OPh)3,PCy 3,PMe 3,P(p -C 6 H 4 F)3 ]。2 RuH加L.(Cp我镨4)的Ru(CO)2