Methacrylic Acid → HCID 57679347, compound

Participants

Reaction Conditions

Reaction Steps

A solution of 76.2 g of 4-phenylbenzo[b]thiophene (0.36 mol) and 37.5 ml of methacrylic acid (0.44 mol) in 50 ml of dichloromethane was added dropwise to 1000 g of super-PPA heated to 80° C. and stirred at 80° C. for 5 hours. The dark red mixture was added to 1000 g of crushed ice and stirred until the polyphosphoric acid had completely dissolved. The aqueous phase was extracted twice with 400 ml each time of a dichloromethane/hexane solvent mixture (30/70 parts by volume). The GC-MS. of the organic phase showed only starting product and no trace of the desired product.

Provenance & Evidence