| Autor: |
Zijp, Eric J., van der Vlugt, Jarl Ivar, Tooke, Duncan M., Spek, Anthony L., Vogt, Dieter |
| Zdroj: |
Dalton Transactions; 2005, Vol. 2005 Issue: 3 p512-517, 6p |
| Abstrakt: |
Chiral aminophosphines Ph2PNRCH2nNRPPh21–4n 2, R CHCH3Ph 1; n 3, R CHCH2CH3Ph 2, n 2, R CHCH31-naphthyl 3; n 2, R CHCH3C6H114 were synthesized by the reaction of ClPPh2with the appropriate easily accessible enantiopure amine building blocks. For compounds 1and 2, the corresponding selenides 5and 6were prepared to determine the electronic character of the phosphine moieties. By reaction of 1with either PdCl2cod or PdClCH3cod the cis-complexes 7and 8were obtained. The molecular structure for complex 7, cis-PdCl21, was determined by X-ray crystallography. Reaction of PtCl2cod with 1or 2yielded the corresponding monomeric cis-isomers 9and 10. The rhodium derivative RhClCO111 was obtained as a mixture of cisand trans-isomers. Preliminary results in the rhodium catalyzed hydroformylation of styrene and vinyl acetate, with ee's up to 51 and high regioselectivities, showed the potential of these chiral aminophosphines for homogeneous catalysis. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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