Reactions of salicylaldehyde with tris(pentaf luorophenyl)silanes and secondary amines
作者:A. D. Dilman、D. E. Arkhipov、P. A. Belyakov、M. I. Struchkova、V. A. Tartakovsky
DOI:10.1007/s11172-006-0285-0
日期:2006.3
Reactions of tris(pentafluorophenyl)silanes RSi(C6F5)3 with salicylaldehyde and secondary amines were studied. The reactions afforded α-pentafluorophenyl-substituted amines. Silanes RSi(C6F5)3 (R = Me, Ph, C6F5, CH2CH=CH2, and CH=CH2) were found to be efficient reagents for transfer of the C6F5 group to the iminium cation generated from salicylaldehyde and amine. However, tris(pentafluorophenyl)phenylethynyl-and tris(pentafluorophenyl)silanes were not able to serve as a source of a fluorinated substituent because of competitive transfer of acetylenide fragment or hydride.
Synthesis and structural characterization of carbon-centered tris(pentafluorophenyl)silyl derivatives
作者:Alexander D. Dilman、Dmitry E. Arkhipov、Alexander A. Korlyukov、Valentine P. Ananikov、Vitalij M. Danilenko、Vladimir A. Tartakovsky
DOI:10.1016/j.jorganchem.2005.04.058
日期:2005.8
A general method for the synthesis of carbon-centered tris(pentafluorophenyl)silyl derivatives (RSi(C6F5)3) by reaction of trichlorosilanes (RSiCl3) with pentafluorophenylmagnesiumbromide was described. The crystal structures of obtained compounds were studied by X-ray diffraction analysis (7 structures). The peculiarities of crystal packing were analyzed by means of DFT calculations.
描述了通过三氯硅烷(RSiCl 3)与五氟苯基溴化镁反应合成以碳为中心的三(五氟苯基)甲硅烷基衍生物(RSi(C 6 F 5)3)的一般方法。通过X射线衍射分析研究了所得化合物的晶体结构(7种结构)。通过DFT计算分析了晶体堆积的特性。