申请人:WANG Weiqi
公开号:US20090111999A1
公开(公告)日:2009-04-30
The present invention provides a process for producing an aromatic unsaturated compound of the formula (4)
wherein Ar represents an optionally substituted aromatic group or an optionally substituted heteroaromatic group, and Y represents an electron withdrawing group,
which comprises reacting
(a) a compound of the formula (1)
Ar—H (1)
wherein Ar has the same meaning as defined above
with
(b) a compound of the formula (2)
wherein Y has the same meaning as defined above, and Z represents a lower alkoxy, or
a compound of the formula (3)
wherein Y and Z have the same meanings as defined above,
in the presence of
(c) an acid or a compound which generates a mineral acid by its hydrolysis.
本发明提供了一种生产芳香不饱和化合物的方法,该化合物的化学式为(4),其中Ar表示可选取代的芳香基团或可选取代的杂芳基团,Y表示电子提取基团,该方法包括在(d)酸或生成矿酸的化合物的存在下,将(a)化合物(1)Ar—H(1)(其中Ar的含义如上所定义)与(b)化合物(2)反应,该化合物的化学式为Y与上述定义相同,Z表示较低的烷氧基,或者与(c)化合物(3)反应,该化合物的化学式中Y和Z的含义与上述定义相同。