The process 1 in which {HEAD ~ the base} employed in {TAIL ~ the hydrolysis} of the Diels Alder adduct is an alkali metal hydroxide 
employed in
The process 1 in which { HEAD ~ the base } employed in { TAIL ~ the hydrolysis } of the Diels Alder adduct is an alkali metal hydroxide
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH