A process is claimed for the enantioselective epoxidation of α,β-unsaturated ketones, in which a compound of the general formula I,
is reacted with an oxidizing agent to form α,β-epoxy ketones of the general formula II,
in which R
1
, R
2
, R
3
are as defined above. The α,β-epoxy ketones of the general formula II can be obtained in good yields and outstanding enantioselectivities from α,β-unsaturated ketones of the general formula I by epoxidation with hydrogen peroxide in the presence of a chiral catalyst, such as amino compounds and their acid addition salts.
一种用于对α,β-不饱和酮进行对映选择性环氧化的方法被提出,其中通式I的化合物与氧化剂反应,形成通式II的α,β-环氧酮,其中R1,R2,R3如上所定义。通过在手性催化剂的存在下,例如
氨基化合物及其酸盐的情况下,用
过氧化氢对通式I的α,β-不饱和酮进行环氧化,可以获得通式II的α,β-环氧酮,其产率高且对映选择性优异。