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