2-alkenyl-3-aminothiophene derivative and process for producing thereof

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-amin...

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Bibliographic Details
Main Authors KITASHIMA TOSHIO, KAKIMOTO TAKESHI
Format Patent
LanguageEnglish
Published 10.04.2012
Subjects
CHEMISTRY
HETEROCYCLIC COMPOUNDS
METALLURGY
ORGANIC CHEMISTRY
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Summary: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,
Bibliography:Application Number: US20070297221