| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method for producing 3,3'-diallyl-4,4'-dihydroxydiphenyl sulfone useful as a developer for a thermosensitive recording material in a short reaction time in an excellent yield. <P>SOLUTION: The method for producing 3,3'-diallyl-4,4'-dihydroxydiphenyl sulfone comprises subjecting 4,4'-diallyloxydiphenyl sulfone to rearrangement reaction in the presence of a chelating agent, preferably in the coexistence of an antioxidant, substantially in the absence of oxygen at 150-350°C, more preferably under microwave irradiation. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
