Thus, for example, if {HEAD ~ R1} and {TAIL ~ R2} are methyl groups, the hydroformylation will produce an aldehyde in which R3 is an ethyl group 
Thus , for example , if { HEAD ~ R1 } and { TAIL ~ R2 } are methyl groups , the hydroformylation will produce an aldehyde in which R3 is an ethyl group
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH