The esters preferably have {HEAD ~ a low boiling point}, particularly below {TAIL ~ 100° C.} at normal pressure 
particularly below
The esters preferably have { HEAD ~ a low boiling point } , particularly below { TAIL ~ 100 ° C. } at normal pressure
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH