How does mercaptopropionic acid work as a co-catalyst in acid catalyzed reactions?

10 October 2015 1 1K Report

I have conducted a reaction between a ketone and phenol in presence of acid (HCl).The yield I have got is only ~55% and time line was more than 3 days. But when I used 3-mercaptopropionic acid as a co-catalyst, the yield is increased to 70% and the time line is decreased to ~1 day. What is the mechanism to enhance the reaction by 30mercaptopionic acid. Any one please can help me?

Jousheed Pk

Thanks a lot Saiket Sen..

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