作者:M. Gacek、K. Undheim
DOI:10.1016/0040-4020(73)80029-8
日期:1973.1
The dichroic absorption of α-trimethylammonium carboxylic acids has been compared with that of α-amino acids. The quaternary acids were synthesized by methylation of amino acids or by the Menschutkin reaction between bromo acids and trimethylamine. The stereochemical course in the Menschutkin reaction is discussed. Rate of racemisation in alkaline solution of the synthesized quaternary acids has been
已经比较了α-三甲基铵羧酸的二色性吸收和α-氨基酸的二色性吸收。通过氨基酸的甲基化或通过溴酸和三甲胺之间的Menschutkin反应合成季酸。讨论了Menschutkin反应中的立体化学过程。已经确定了在合成季酸的碱性溶液中外消旋的速率。