Patent ID: 9061991
Filing Date: 2015-06-23
Classification: C07B,C07C,C12P

Abstract:
1. A method for producing a compound represented by the following formula (4): wherein R the method comprises a step (i) of allowing a compound represented by the following formula (3): wherein Z represents a halogen atom or OR to react with a malonic ester in the presence of an alkali metal alkoxide or alkali metal hydride, to produce the compound represented by the formula (4), wherein, in the step (i), the alkali metal alkoxide or alkali metal hydride is used in an amount of 1.5 equivalents or more with respect to 1 equivalent of the compound represented by the above formula (3), and the malonic ester is used in an amount of 1 equivalent or more with respect to 1 equivalent of the alkali metal alkoxide or alkali metal hydride.