Synthesis and proton magnetic resonance studies of some 1,2-dialkyl-1,2-bis(2,6-dimethyl-phenyl)ethanes
作者:A.J.M. Reuvers、A. Sinnema、F. Van Rantwijk、J.D. Remijnse、H. Van Bekkum
DOI:10.1016/s0040-4020(01)82988-4
日期:1969.1
Compounds of the type R1R2CH-CHR2R1, in which R1 is 2,6-dimethylphenyl and R2 is hydrogen, methyl, or t-butyl, were synthesized and the meso and racemic isomers separated. A study of these compounds by PMR spectroscopy, including 13C-satellites and the effects of temperature variation, yielded information about the configurations, the preferential conformations, and the barriers to rotations about
合成了其中R 1为2,6-二甲基苯基且R 2为氢,甲基或叔丁基的R 1 R 2 CH-CHR 2 R 1类型的化合物,并分离了内消旋和外消旋异构体。这些化合物由PMR谱,包括的研究13 C-卫星和温度变化的影响,产生了关于配置,优先构象,和关于R中的障碍信息转1 CH键。