Arene displacement in chromium chalcocarbonyl complexes by tertiary phosphorus ligands
作者:Ashraf A. Ismail、Ian S. Butler
DOI:10.1016/0022-328x(88)80115-3
日期:1988.5
Displacement of the arene in (η-arene)Cr(CO)2(CX) (arene = C6H6; PhCO2Me; X = S, Se) by tertiary phosphite ligands (L = (RO)3P; R = Me, Et, n-Bu, Ph) and tridentate tertiary phosphine ligands (LLL = triphos-U[(Me)C(CH2P(Ph)2)3], triphos = [(Ph2PCH2CH2)2PhP]) affords a convenient synthetic route to new series of isomeric complexes of stoichiometry Cr(CO)2(CX)L3 and (LLL)Cr(CO)2(CX). The stereochemistries
在(η-芳烃)的Cr(CO)芳烃的位移2(CX)(芳烃= C 6 H ^ 6 ; PhCO 2通过三级磷酸盐配位体(L =(RO);我X = S,Se)的3 P: - [R = Me,Et,n-Bu,Ph)和三齿叔膦配体(LLL= triphos-U [(Me)C(CH 2 P(Ph)2)3 ],triphos = [(Ph 2 PCH 2 CH 2)2 PhP])为化学计量的Cr(CO)2(CX)L 3和(LLL)Cr(CO)2的新系列异构体提供了便利的合成途径(CX)。这些异构体的立体化学是根据其FT-IR(ν(CO)区)和31 P NMR光谱建立的。讨论了不同的羰基羰基配体(CO,CS,CSe)对31 P共振位置的影响。