Typically, the molar ratio of {HEAD ~ alkene} to {TAIL ~ unsaturated feed material} is greater than about 0.8/1.0, preferably greater than about 0.9/1.0 
to
Typically , the molar ratio of { HEAD ~ alkene } to { TAIL ~ unsaturated feed material } is greater than about 0.8/1.0 , preferably greater than about 0.9/1.0
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH