The present invention discloses a process for preparing a nitrile compound, a carboxylic acid compound or a carboxylic acid ester compound represented by the formula (2):
wherein R represents a cyano group, a carboxyl group or an ester group, R1 and R2 each represent a group which does not participate in the reaction, which may have a substituent, and R1 and R2 may be combined to each other to form a ring,
which comprises subjecting an acetic acid compound represented by the formula (1):
wherein R, R1 and R2 have the same meanings as defined above,
to decarboxylation in the presence of a metal catalyst.
本发明公开了一种制备由式(2)表示的腈化合物、
羧酸化合物或
羧酸酯化合物的工艺:
其中 R 代表
氰基、羧基或酯基,R1 和 R2 各代表一个不参与反应的基团,该基团可具有取代基,且 R1 和 R2 可相互结合形成一个环、
其中包括将由式(1)代表的
乙酸化合物进行反应:
其中 R、R1 和 R2 的含义与上述定义相同、
在
金属催化剂存在下进行脱羧反应。