Macrocyclic Complexes Derived from Four
<i>cis</i>
‐L
<sub>2</sub>
Pt Corners and Four Butadiynediyl Linkers; Syntheses, Electronic Structures, and Square versus Skew Rhombus Geometries
作者:Brenna K. Collins、Melissa Clough Mastry、Andreas Ehnbom、Nattamai Bhuvanesh、Michael B. Hall、John A. Gladysz
DOI:10.1002/chem.202100305
日期:2021.7.12
dialkyl malonate derived 1,3-diphosphines R2C(CH2PPh2)2 (R=a, Me; b, Et; c, n-Bu; d, n-Dec; e, Bn; f, p-tolCH2) are combined with (p-tol3P)2PtCl2 or trans-(p-tol3P)2Pt((C≡C)2H)2 to give the chelates cis-(R2C(CH2PPh2)2)PtCl2 (2 a–f, 94–69 %) or cis-(R2C(CH2PPh2)2)Pt((C≡C)2H)2 (3 a–f, 97–54 %). Complexes 3 a–d are also available from 2 a–d and excess 1,3-butadiyne in the presence of CuI (cat.) and excess
所述丙二酸二烷基酯衍生的1,3-二膦- [R 2 C(CH 2 PPH 2)2(R =一个中,Me; b,等; Ç,Ñ -Bu; d,Ñ -癸; ê,BN; ˚F,p - tolCH 2 ) 与 ( p -tol 3 P) 2 PtCl 2或反式-( p- tol 3 P) 2 Pt((C≡C) 2 H) 2 结合,得到螯合物顺式-(R 2 C(CH 2 PPh 2 ) 2 )PtCl 2 ( 2 a – f , 94–69 %) 或顺式-(R 2 C(CH 2 PPh 2 ) 2 )Pt((C≡C) 2 H ) 2 ( 3 a – f , 97–54 %)。在 CuI(催化剂)和过量 HNEt 2(87-65%)存在下,配合物3 a - d也可从2 a - d和过量 1,3-丁二炔中获得。在类似条件下,2和3反应得到标题化合物 [(R 2 C(CH 2 PPh 2 ) 2 )[Pt(C≡C)