Reactions of haloarenes, haloheteroarenes and dihalobenzenes with triphenylstannyl anions in DMSO and acetonitrile
作者:Marı́a T. Lockhart、Alicia B. Chopa、Roberto A. Rossi
DOI:10.1016/s0022-328x(99)00040-6
日期:1999.6
react with Ph3Sn− ions faster by an HME mechanism than by the SRN1 process. In the photostimulated reaction of 1-chloronaphthalene, 2-chloro and 3-chloropyridines with Ph3Sn− ions in DMSO, the substitution products are obtained in 72, 82 and 93% yields, respectively. With p-dichlorobenzene the di-substitution product is obtained in 90% yield. All these reactions occur by the SRN1mechanism. Yields improve