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