| 摘要 |
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.; |
| 主权项 |
1. A method for preparing an organic compound which comprises using a phosphine compound or a phosphonium salt by the general formula (4):or its corresponding phosphonium salt represented by the general formula (4a):wherein
R′ and R″ are each independently 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 consisting of alkyl, cycloalkyl, aryl, alkoxy, and aryloxy radicals; R is selected from the group consisting of methyl, ethyl, n-propyl, isopropyl, n-octadecyl, benzyl, and phenyl radicals that are unsubstituted; R11, R12, R13, R14, R15, R16, R17, and R18 are each independently selected from the group consisting of H; aliphatic, heteroaliphatic, aromatic, alicyclic, heterocyclic radicals, heteroatom-containing radicals comprising an aromatic, alicyclic, or heterocyclic radical and an additional heteroatom linking the aromatic, alicyclic, or heterocyclic radical atom with the carbon atom of the fluorenyl group, all the foregoing radicals being unsubstituted or substituted by further carbon and/or heteroatoms; halogens; and heteroatom-containing groups; or adjacent groups selected from R11, R12, R13, R14, R15, R16, R17, and R18 together form a divalent radical thereby forming a fused ring system; and Y−represents an anion in combination with a transition metal as a catalyst or as a part of a catalyst system that is used to prepare the organic compound, wherein the transition metal is from Groups 8, 9, 10, and 11 of the Periodic Table of the Elements. |
