Furthermore, it facilitates the simultaneous distillation of {HEAD ~ the more volatile alkanol} by product from {TAIL ~ the reaction mixture} 
Furthermore , it facilitates the simultaneous distillation of { HEAD ~ the more volatile alkanol } by product from { TAIL ~ the reaction mixture }
OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL