2-ALKENYL-3-AMINOTHIOPHENE DERIVATIVE AND PROCESS FOR PRODUCING THEREOF
申请人:Kakimoto Takeshi
公开号:US20090082579A1
公开(公告)日:2009-03-26
Disclosed is a method for commercially producing 2-alkenyl-3-aminothiophene derivatives, which are useful as intermediates for agricultural chemicals, at low cost. Specifically disclosed is a method for introducing alkenyl groups into the 2-position of 3-aminothiophene derivatives by reacting 3-aminothiophene derivatives represented by the general formula (2) below or salts thereof with a ketone represented by the general formula (1) below without using a protecting group. Also specifically disclosed are 2-alkenyl-3-aminothiophene derivatives (3a) to (3d) which are useful as intermediates for agricultural chemicals,
2-ALKENYL-3-AMINOTHIOPHENE DERIVATIVE AND METHOD FOR PRODUCING THE SAME
申请人:Mitsui Chemicals, Inc.
公开号:EP2011792A1
公开(公告)日:2009-01-07
Disclosed is a method for commercially producing 2-alkenyl-3-aminothiophene derivatives, which are useful as intermediates for agricultural chemicals, at low cost. Specifically disclosed is a method for introducing alkenyl groups into the 2-position of 3-aminothiophene derivatives by reacting 3-aminothiophene derivatives represented by the general formula (2) below or salts thereof with a ketone represented by the general formula (1) below without using a protecting group. Also specifically disclosed are 2-alkenyl-3-aminothiophene derivatives (3a) to (3d) which are useful as intermediates for agricultural chemicals,