Further, it is preferred that {TAIL ~ the crystallization} from {HEAD ~ the crude polar vinyl compound} be performed in the presence of an alcohol or a basic compound 
Further , it is preferred that { TAIL ~ the crystallization } from { HEAD ~ the crude polar vinyl compound } be performed in the presence of an alcohol or a basic compound
OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH