Gyroscope-Like Platinum and Palladium Complexes with Trans-Spanning Bis(pyridine) Ligands
作者:Paul D. Zeits、Giovanni Pietro Rachiero、Frank Hampel、Joseph H. Reibenspies、John A. Gladysz
DOI:10.1021/om201145x
日期:2012.4.9
5-NC5H3(4-C6H4OH)2, Br(CH2)5CH═CH2, and Cs2CO3 yields 3,5-NC5H3(4-C6H4O(CH2)5CH═CH2)2 (8; 32%). Reactions of PtCl2 with 1a,b, 2a–e,h,i, 4a,b (but not 4c,d), 5a,c–f,h, and 8 afford the corresponding bis(pyridine) complexes trans-10a,b (40–12%), trans-12a–e,h,i (84–46%), trans-17a,b (88–22%), trans-19a,c–f,h (94–63%), and trans-22 (96%). Selected adducts are treated with Grubbs’ catalyst and then H2 (Pd/C) to
制备具有一个或两个在乙烯基上终止的取代基的吡啶。反式-MCl 2加合物的分子内闭环复分解和氢化提供了标题化合物。Williamson醚合成使用醇HO(CH 2)Ñ CH = CH 2(Ñ = 1(一),2(b),3(Ç),4(d),5(ê),6(˚F),8 (h),9(i))和适当的卤化物可得到吡啶2-NC 5 H 4(CH 2 O(CH 2)Ñ CH = CH 2)( 1A, b),3-NC 5 H ^ 4(CH 2 O(CH 2) Ñ CH = CH 2)(图2a - ë, ħ,我),和2,6- NC 5 ħ 3(CH 2 O(CH 2) ñ CH = CH 2) 2(图4a - d)在92-45%的产率。3,5-NC 5 H 3(COCl) 2与HO(CH 2)的反应Ñ CH = CH 2,得到二酯3,5- NC 5 H ^ 3(COO(CH 2) Ñ CH = CH 2) 2( 5A