Typically, the molar ratio of {HEAD ~ alkene} to {TAIL ~ feed material} is less than about 3.0/1.0, preferably less than about 2.0/1.0 
to
Typically , the molar ratio of { HEAD ~ alkene } to { TAIL ~ feed material } is less than about 3.0/1.0 , preferably less than about 2.0/1.0
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH