Processes for producing a compound represented by the formula (1), which includes an acrylic acid derivative and is useful as an agricultural chemical or medicine. One of the processes comprises the step of formulating a compound (3) and converting the OH of the resultant compound (2) into OR″. The first step comprises reacting a formic or orthoformic ester in the presence of a Lewis acid and a base. The second step comprises reacting the compound with R″OH or with R″OH and CH(OR″)
3
under acidic conditions or using a phase-transfer catalyst in a two-phase system and regulating the base and the concentration thereof to stereoselectively synthesize the target compound. In another, process, the compound is efficiently produced without isolating the compound. The compound can also be produced without the compound (2).
1
生产一种由
化学式(1)表示的化合物的过程,该化合物包括
丙烯酸衍
生物,可用作农药或药物。其中一个过程包括将化合物(3)配制并将所得化合物(2)的羟基转化为OR″。第一步包括在Lewis酸和碱的存在下反应
甲酸酯或正
甲酸酯。第二步包括在酸性条件下将化合物与R″OH或与R″OH和CH(OR″)3反应,或者在两相系统中使用相转移
催化剂,并调节碱及其浓度以立体选择性地合成目标化合物。在另一个过程中,该化合物可以在不分离该化合物的情况下高效生产。该化合物也可以在不使用化合物(2)的情况下生产。