{HEAD ~ The presence} of {TAIL ~ the catalyst} in a mixture of the substance to be succinylated and succinic anhydride results in significantly greater yield of the desired succinylated product  
{ HEAD ~ The presence } of { TAIL ~ the catalyst } in a mixture of the substance to be succinylated and succinic anhydride results in significantly greater yield of the desired succinylated product
HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH