Esters of low molecular alkanoic acids, such as {HEAD ~ C1} to {TAIL ~ C5 carboxylic acids}, of low molecular alkanols, such as C1 C5 alkanols, are favored 
to
Esters of low molecular alkanoic acids , such as { HEAD ~ C1 } to { TAIL ~ C5 carboxylic acids } , of low molecular alkanols , such as C1 C5 alkanols , are favored
OTH OTH OTH 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 OTH OTH OTH