diastereomeric salt(s) formed even at temperatures near to its boiling point. Compound (S)-(−)-PhCHCH3[NH(CH2)3C8F17] is found to satisfy all the latter conditions and successfully used for the heat facilitated resolution of the title racemic acid. The circular dichroism (CD) spectra of six novel fluorous (S)-(−)-1-phenylethylamine derivatives are measured in ethanol, trifluoroethanol and hexafluoropropan-2-ol
全氟烷基或nonafluoro-叔丁氧基烷基取代的具有如下结构的对映纯的PhCHCH胺3(NR 1 - [R 2)[R 1 = H,CH 3 ; R 2 =(CH 2)3 C 8 F 17,(CH 2)2 OC(CF 3)3;R 1 = R 2 =(CH 2)3 C 8 F 17,(CH 2)2 OC(CF 3)3当(S)-(-)-1-苯基
乙胺与易于获得的烷基化试剂或
氟2°胺(R 1 = H; R 2 =(CH 2)3 C 8 F 17, (CH 2)2 OC(CF 3)3)在Leuckart-Wallach反应中被甲基化。定性描述了这些新型手性胺及其盐酸盐在各种溶剂中的溶解度模式,游离碱的
氟分配系数由GC确定。本文公开了拆分对映异构体的新方法,该方法涉及在溶剂
水中使用一半当量的所选拆分剂,即使在接近其沸点的温度下,其对形成的结晶非对映体盐的溶解度也较低。化合物(S)-(-)-PhCHCH