The present invention relates to a method for producing an unsaturated acid and/or an unsaturated acid ester, containing a process A of reacting a compound (1) represented by the following formula (1) at a temperature of 0° C. to 350° C. in the presence of a Brønsted acid catalyst and/or a Lewis acid catalyst, to prepare a compound (2) represented by the following formula (2);
in which each of R
1
, R
2
and R
4
independently represents a hydrogen atom, a deuterium atom or an alkyl group; each of R
3
and R
5
independently represents a hydrogen atom or a deuterium atom; R
6
represents a hydrogen atom, a deuterium atom, or an alkyl group or an aryl group; and X represents a chlorine atom, a fluorine atom, a bromine atom, or an iodine atom.
本发明涉及一种生产不饱和酸和/或不饱和酸
酯的方法,包括在存在Brønsted酸
催化剂和/或Lewis酸
催化剂的条件下,以0°C至350°C的温度反应以下式(1)表示的化合物(1),制备以下式(2)表示的化合物(2)的过程A;其中R1、R2和R4中的每一个独立地表示
氢原子、
氘原子或烷基基团;R3和R5中的每一个独立地表示
氢原子或
氘原子;R6表示
氢原子、
氘原子、烷基基团或芳基;X表示
氯原子、
氟原子、
溴原子或
碘原子。