Asymmetrical aminophosphines, belonging to a novel class of...

Details Asymmetrical aminophosphines, belonging to a novel class of... Asymmetrical aminophosphines, belonging to a novel class of...

C - Chemistry, Metallurgy

07

F

260/462, 260/540

C07F 9/22 (2006.01) C07F 9/28 (2006.01)

Patent

CA 1119183

ABSTRACT OF THE DISCLOSURE The present invention is concerned with asymmetrical aminophosphines, belonging to a novel class of amine derivatives of the phosphorus, having the general formula Image wherein R1 is alkyl, aryl, alkylaryl, cycloalkyl, alcoxy, aryl- oxy, alkylthio,arylthio, alkylphosphino, arylphosphino or amino- phosphino; x varies between 0 and 2; R2 and R3 are identical or different and each represents an alkyl, aryl, alkylaryl, aryl- alkyl or cycloalkyl radical, at least one of the radicals R2 and R3 containing one or more non racemic chiral centers. These new asymmetrical aminophosphines may be used thereafter with a suitable transition metals in order to produce a corresponding complexes which are able to perform the asymmetrical hydrogenation of a broad range of compounds, selected amongst prochiral and racemic olefins and compounds containing CO and/or CN groups. The invention relates moreover to the preparation of these asymmetrical aminophosphines.

374038

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