Synthesis of Aryl Trimethylstannanes from Aryl Amines: A Sandmeyer-Type Stannylation Reaction
作者:Di Qiu、He Meng、Liang Jin、Shuai Wang、Shengbo Tang、Xi Wang、Fanyang Mo、Yan Zhang、Jianbo Wang
DOI:10.1002/anie.201304579
日期:2013.10.25
Sandmeyer‐type stannylation: Stille coupling is one of the most powerful coupling reactions for CC bond formation, whereas there are only limited methods to access aryl stannane compounds. A mild stannylation process based on a Sandmeyer‐type transformation using aromatic amines as the starting materials is described. DCE: 1,2‐dichloroethane.
Replacing Conventional Carbon Nucleophiles with Electrophiles: Nickel-Catalyzed Reductive Alkylation of Aryl Bromides and Chlorides
作者:Daniel A. Everson、Brittany A. Jones、Daniel J. Weix
DOI:10.1021/ja301769r
日期:2012.4.11
general method is presented for the synthesis of alkylated arenes by the chemoselective combination of two electrophilic carbons. Under the optimized conditions, a variety of aryl and vinyl bromides are reductively coupled with alkyl bromides in high yields. Under similar conditions, activated aryl chlorides can also be coupled with bromoalkanes. The protocols are highly functional-group tolerant (−OH,
Synthesis of platinum(II) alkyl and aryl complexes from K2[PtCl4] and tetraorganotin compounds in dimethyl sulphoxide
作者:Colin Eaborn、Kalipada Kundu、Alan Pidcock
DOI:10.1039/dt9810000933
日期:——
Complexes cis-[PtR2(dmso)2] and cis-[PtRCl(dmso)2](dmso = dimethyl sulphoxide) are readily obtained from K2[PtCl4] and SnMe3R (R = aryl or Me) in dmso at 70–90 °C. Hydrogen-1 n.m.r. spectra show that the dmso ligands are bound through sulphur in solution and that the dmso ligand trans to R in cis-[PtRCl(dmso)2] undergoes dissociation and exchange at ambient temperature. With anionic reagents X–(X =
The rates of cleavage at 50° by a mixture of ethanol (5 vol) and aqueous perchloric acid (2 vol) of the aryl-SnMe3 bonds of p-[(Me3Si)xMe(3−x)Si]C6H4SnMe3 compounds relative to that of phenyltrimethylstannane have been found to be 0.93 (x = 0), 1.31 (x = 1), 1.67 (x = 2) and 1.76 (x = 3). The increase in rate with the increasing magnitude of x can be attributed to inductive and hyperconjugative electron
Synthesis and spectroscopic characteristics of aryltrimethyl-silicon, -germanium, and -tin compounds
作者:S.M. Moerlein
DOI:10.1016/0022-328x(87)80344-3
日期:1987.1
The synthesis and spectroscopic characteristics of 28 para-substituted aryltrimethyl-silicon, -germanium, and -tincompounds are described. The infrared spectra show characteristic bands at 1245–1165 (methyl bend), 840–765 (methyl rock), and 1105–1020 (in-plane aromatic H bend) cm−1; the frequency of the last band was found to depend on the sum of the aromatic substituent masses, the presence or absence