1-olrac-1 in high yields. Rac-1 forms dimers in the solid state by linking one (1R,2R)- and one (1S,2S)-enantiomer via strong intermolecular H-bonds. In the presence of the immobilized lipase B of candida antarctica yeast, rac-1 is acylated enantioselectively with isopropenylacetat acting as the acylating agent. Crystallisation of the reaction mixture gives enantiomerically pure (1S,2S)-1, which forms
环氧
环己烷与
吡唑的反应以高收率得到反式-2-(1-
吡唑基)环己基-1-olrac-1 。Rac-1通过牢固的分子间H键连接一个(1R,2R)-和一个(1S,2S)-对映体形成固态二聚体。在南极假丝酵母酵母的固定化
脂肪酶B存在下,rac-1被
异丙烯基乙酸酯作为酰化剂对映选择性地被酰化。反应混合物的结晶产生对映体纯的(1S,2S)-1,其在固态下形成螺旋结构。通过用5-氧代-(2R)-(三
氯甲基)-
1,3-二氧戊环-(4S)-
乙酰氯3酯化产物的X射线结构分析检查了该醇的绝对构型。