2′‐dihydroxy‐1,1′‐biaryls proceeds with a catalytic amount of a cyclopentadienylruthenium(II) complex at 35–50 °C. Combining this racemization procedure with lipase‐catalyzed kinetic resolution led to the first lipase/metal‐integrated dynamic kinetic resolution of racemic axially chiral biaryl compounds. The method was applied to the synthesis of various enantio‐enriched C1‐ and C2‐symmetric biaryl diols in
我们发现,构型稳定的轴向手性2,2'-二羟基-1,1'-联芳基的消旋与催化量的
环戊二烯基
钌(II)络合物在35–50°C下进行。该消旋过程与
脂肪酶催化的动力学拆分相结合,导致了外消旋轴向手性联芳基化合物的首次
脂肪酶/
金属结合的动力学拆分。该方法用于合成各种对映体富集的C 1和C 2对称联芳基二醇,产率高达98%,对映体过量高达98%,这为不对称领域的新发展铺平了道路。合成。