An efficient synthesis of both enantiomers of trans-1,2-cyclopentanediol and their conversion to two novel bidentate phosphite and fluorophosphinite ligands
An efficient synthesis of both enantiomers of trans-1,2-cyclopentanediol and their conversion to two novel bidentate phosphite and fluorophosphinite ligands
New<i>C</i><sub>2</sub>-Chiral Bidentate Ligands Bridging the gap between donor phosphine and acceptor carbonyl ligands
作者:E. Peter Kündig、Chantal Dupré、Bernadette Bourdin、Allan Cunningham、Dominique Pons
DOI:10.1002/hlca.19940770202
日期:1994.3.23
Two new C2 chiral bidentate phosphorous ligands have been prepared in enantiomerically pure form. The two phosphorous centers bear electron-withdrawing groups ((CF3)2CHO, C6F5) and are linked by a trans-cyclopentane-1,2-diol-derived bridge. Photolysis of [Cr(η6-C6H6)(CO)3] in the presence of these two new ligands and of two previously reported bidentate phosphites, and fluorophosphinites (L) afforded
已经以对映体纯的形式制备了两个新的C 2手性二齿磷酸配体。两个磷中心带有吸电子基团((CF 3)2 CHO,C 6 F 5),并通过反式-环戊烷-1,2-二醇衍生的桥连接。的光解[CR(η 6 -C 6 H ^ 6)(CO)3 ]中得到两个以前报道的二齿亚磷酸酯,和fluorophosphinites(L)的这两个新的配体的存在和[CR(η 6 -C 6 H ^ 6)(CO)L]配合物。配合物的红外光谱比较表明,新的配体在亚磷酸烷基酯和一氧化碳之间的键合性能中处于中间水平。