Syntheses of gyroscope-like molecules via three-fold ring closing metatheses of bis(phosphine) complexes trans-LyM(P((CH2)nCHCH2)3)2, and extensions to bis(phosphite) complexes trans-Fe(CO)3(P(O(CH2)nCHCH2)3)2
作者:Katrin Skopek、John A. Gladysz
DOI:10.1016/j.jorganchem.2007.11.001
日期:2008.3
79–96%). Reactions of 26a,b,e,f and Fe(BDA)(CO)3 (BDA = benzylideneacetone) give trans-Fe(CO)3(P(O(CH2)nCHCH2)3)2 (27a,b,e,f) as yellow or green oils in 17–64% yields after workup. Two representative complexes (27b,e) are treated with Grubbs’ catalyst (2 × 6.5 mol%). NMR analyses of the resulting crude trans-Fe(CO)3(P(O(CH2)nCHCH(CH2)nO)3P) (28b,e) suggest mixtures of Z/E isomers and perhaps oligomers
反式-L y M(P(((CH 2)n CHCH 2)3)2的三角双锥体,方形平面和八面体双(膦)配合物的合成及其转化为陀螺仪样分子反式-L通过三倍分子内烯烃复分解/氢化序列来评价Y。然后描述了涉及双(亚磷酸酯)配合物的新数据。P(NMe 2)3与HO(CH 2)n CHCH 2的反应(n = a,3; b,4;c 5;d 6;e,8;f,9)提供了配体P(O(CH 2)n CHCH 2)3(26a – f,79–96%)。的反应26A,b,ê,˚F和Fe(BDA)(CO)3(BDA =亚苄基丙酮),得到反式-Fe(CO)3(P(O(CH 2)Ñ CHCH 2)3)2(27A,b,ē,˚F)为黄色或绿色油类,后处理后的收率为17-64%。用Grubbs的催化剂(2×6.5mol%)处理两个代表性的配合物(27b,e)。所得粗反式-Fe(CO)3(P(O(CH 2)n CHCH(CH 2)n