申请人:DAIKIN INDUSTRIES, LTD.
公开号:US20210284593A1
公开(公告)日:2021-09-16
An object of the present invention is to provide, for example, a novel method for synthesizing a fluorovinyl ether compound from a fluorine-containing vinyl compound. This problem is solved by a method for producing a compound represented by formula (1):
wherein
R
a1
is a hydrogen atom, a halogeno group, an alkyl group, a fluoroalkyl group, or an aromatic group optionally having one or more substituents,
Rf is a fluoro group or a perfluoroalkyl group,
R
a2
is a hydrogen atom, a halogeno group, an alkyl group, a fluoroalkyl group, or an aromatic group optionally having one or more substituents, or
(i) R
a1
and R
a2
, (ii) R
a1
and Rf, or (iii) Rf and R
a2
may be linked to each other,
R
b1
is R
S
,
R
b2
is a hydrogen atom or R
S
,
R
b3
is a hydrogen atom or R
S
, or
two or three of R
b1
, R
b2
, and R
b3
, taken together with the adjacent carbon atom, may form a ring optionally having one or more substituents, and
R
S
, in each occurrence, is the same or different and represents a hydrocarbon group optionally having one or more substituents, the method comprising
step A of reacting a compound represented by formula (2):
wherein
R
x
is a leaving group, and
other symbols are as defined above,
with a compound represented by formula (
3
):
wherein the symbols in the formula are as defined above, in the presence of a transition metal catalyst.
本发明的一个目标是提供一种从含氟乙烯化合物合成氟乙烯醚化合物的新方法。这个问题通过以下方法解决:生产一个由以下式表示的化合物的方法(1):其中Ra1是氢原子、卤素基团、烷基基团、氟烷基基团或可能具有一个或多个取代基的芳香基团,Rf是氟基团或全氟烷基基团,Ra2是氢原子、卤素基团、烷基基团、氟烷基基团或可能具有一个或多个取代基的芳香基团,或(i) Ra1和Ra2、(ii) Ra1和Rf或(iii) Rf和Ra2可能连接在一起,Rb1是RS,Rb2是氢原子或RS,Rb3是氢原子或RS,或者Rb1、Rb2和Rb3中的两个或三个,与相邻的碳原子一起,可以形成一个可能具有一个或多个取代基的环,RS在每次出现时相同或不同,表示一个可能具有一个或多个取代基的碳氢基团,该方法包括以下步骤:步骤A,将由以下式表示的化合物(2):其中Rxis是一个离去基团,和上述其他符号的定义相同,与由以下式表示的化合物(3):其中式中的符号与上述定义相同,在过渡金属催化剂存在下反应。