作者:Norbert Klempier、Paul Geymayer、Peter Stadler、Kurt Faber、Herfried Giengl
DOI:10.1016/s0957-4166(00)86336-3
日期:1990.1
Bicyclo[3.2.0]hept-2-en-6-ols, central building blocks for the synthesis of chiral cyclobutane and -pentane systems, were prepared with up to >99% e.e. by lipase catalysed resolution of their acetates, butyrates, or isobutyrates. Substituents at C-7 vicinal to the reaction site reduced both enantioselectivity and reaction rate, whereas variation of the acid moiety showed a smaller influence. Among
双环[3.2.0] hept-2-en-6-ols,用于合成手性环丁烷和-戊烷体系的主要结构单元,通过脂肪酶催化分离其乙酸盐,丁酸盐或异丁酸酯。C-7附近的反应位取代基降低了对映选择性和反应速率,而酸部分的变化则显示出较小的影响。在测试的脂肪酶中,那些来自假单胞菌属。被证明优于来自假丝酵母,Mucor sp。的那些。和猪胰腺。