... 248.37. -Obtained from 1-nonene and (p-MeO-C 6 ... Obtained by Fries rearrangement of pyrocatechol nonanoate (1 mol) with aluminium chloride (2 mol) in the presence of pyrocatechol (1 mol) in nitrobenzene at 80–100° for 2 h (40 %) [1283]. ... 1 H NMR [1347], 13 C NMR [1347],. ...