New C2??Chiral Bidentate Ligands Bridging the gap between donor phosphine and acceptor carbonyl ligands

…, C Dupré, B Bourdin, A Cunningham…

Index: Kundig; Dupre; Bourdin; Cunningham Jr.; Pons Helvetica Chimica Acta, 1994 , vol. 77, # 2 p. 421 - 428

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Citation Number: 38

Abstract

Abstract Two new C 2 chiral bidentate phosphorous ligands have been prepared in enantiomerically pure form. The two phosphorous centers bear electron-withdrawing groups ((CF 3) 2 CH [BOND] O, C 6 F 5) and are linked by a trans-cyclopentane-1, 2-diol-derived bridge. Photolysis of [Cr (η 6-C 6 H 6)(CO) 3] in the presence of these two new ligands and of two previously reported bidentate phosphites, and fluorophosphinites (L) afforded [Cr (η ...