反应详情

For example, a known compound, γ-phenyl-γ-butyrolactone having a melting point of 36° C. to 37° C. is reacted with a phenol derivative having the general formula: ##STR9## wherein R2 represents a hydrogen atom or an alkyl group having 1 to 3 carbon atoms in the presence of a base such as sodium alkoxide, potassium alkoxide, sodium hydroxide, potassium hydroxide, sodium hydride, or sodium metal to form a 4-phenyl butyric acid derivative having the general formula: ##STR10## wherein R2 is the same as defined above,