An object of the present invention is to provide a novel method for producing a fluorine-containing methylene compound.
The above object can be achieved by a method for producing a compound represented by formula (1):
wherein R1 represents an organic group,
RA represents hydrogen or fluorine,
R4a represents hydrogen or an organic group,
R4b represents hydrogen or an organic group,
R5a represents hydrogen or an organic group,
R5b represents hydrogen or an organic group, and
R2 represents hydrogen or an organic group;
R2 is optionally connected to R4a to form a ring;
the method comprising step A of reacting a compound represented by formula (2):
wherein X1 represents a leaving group, and other symbols are as defined above,
with a compound represented by formula (3):
wherein X2 represents a leaving group, and other symbols are as defined above,
in the presence of a reducing agent as desired, under light irradiation.
本发明的目的是提供一种生产含
氟亚甲基化合物的新方法。
上述目的可以通过生产式(1)所代表的化合物的方法来实现:
其中 R1 代表有机基团、
RA代表氢或
氟
R4a 代表氢或有机基团、
R4b 代表氢或有机基团
R5a 代表氢或有机基团
R5b 代表氢或有机基团,以及
R2 代表氢或有机基团;
R2 可选择与 R4a 连接以形成一个环;
该方法包括步骤 A:使式 (2) 所代表的化合物发生反应:
其中 X1 代表离去基团,其他符号如上定义、
与式 (3) 所代表的化合物反应:
其中 X2 代表离去基团,其他符号如上所定义、
在所需的还原剂存在下,在光照射下。