| 摘要 |
Novel industrial products consisting of phosphinite-borane compounds are disclosed, having general formula (IO) in which R<1> and R<2> are the same or different and each represent a C1-C18 alkyl group, a C5-C18 cycloalkyl group, a C7-C18 aralkyl group or a C6-C14 aryl group, each of these groups being capable of carrying functional groups; R<3> is a C1-C18 alkyl group, a C5-C18 cycloalkyl group, a C7-C18 aralkyl group, a C6-C14 aryl group, a C1-C18 alkoxy group, a C7-C18 cycloalkyloxy group, a C7-C18 aralkyloxy group, or a C6-C14 aryloxy group; Z represents a bridge linking the two phosphorus atoms, the said bridge being (i) a hydrocarbon chain with 1 to 12 catenary C atoms, or (ii) a heterohydrocarbon chain containing 1 to 12 catenary C atoms and at least a catenary heteroatom chosen from O, S, Si, P and N; with the further proviso that (i) Z is different from CH2 when simultaneously R<1> is phenyl and R<2> = R<3> = methyl, and (ii) Z is different from CH2CH2 when simultaneously R<1> is phenyl, R<2> is methyl and R<3> is methoxy. These products are useful in the synthesis of chiral diphosphine compounds. |
