Reaction can rapidly proceed in {HEAD ~ an organic solvent} such as {TAIL ~ chloroform}, methylene chloride, benzene, toluene, etc 
such as
Reaction can rapidly proceed in { HEAD ~ an organic solvent } such as { TAIL ~ chloroform } , methylene chloride , benzene , toluene , etc
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH