Alkylation of 2,6-diphenylpyrylium and 2,6-di-t-butylpyrylium ions by photochemical reaction with tetraalkylstannanes
摘要:
2,6-diphenylpyrylium and 2,6-di-t-butylpyrylium perchlorates are easily converted into a number of the corresponding 4-alkyl derivatives by photochemical reaction with tetraalkylstannanes, in MeCN at room temperature. The mechanism of the process is discussed.
A Convenient Quick Synthesis of SnBu<sub>2</sub>RCl Derivatives
作者:Nora Carrera、Mónica H. Pérez-Temprano、Ana C. Albéniz、Juan A. Casares、Pablo Espinet
DOI:10.1021/om900326g
日期:2009.7.13
the quick preparation of SnBu2RX (Bu = n-Bu) has been developed using microwave irradiation and column chromatography in acidic alumina. The method can be a good alternative particularly for easy and quick preparation of small amounts for test purposes and, in general, for the synthesis of compounds that cannot be purified by fractional distillation due to thermal lability or low volatility.
已经开发了一种使用微波辐射和酸性氧化铝柱色谱法快速制备SnBu 2 RX(Bu = n -Bu)的简便方法。该方法可以是一种很好的选择,特别是对于出于测试目的的简便快速制备,以及通常用于合成由于热不稳定性或低挥发性而无法通过分馏纯化的化合物的合成而言。
The effect of CO on the reaction of (tributyltin)lithium with alkyl and aryl bromides
作者:N. Sbarbati Nudelman、Cecilia Carro
DOI:10.1016/s0022-328x(98)00486-0
日期:1998.7
The reaction of (tributyltin)lithium with alkyl and aryl bromides in THF was studied in the presence of CO and of p-dinitrobenzene under several reaction conditions. The observed results indicate that electron transfer is involved in the substitution reaction.