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Enol esters 3a and 3b, from cyclohexane-1,3-dione and pyrrole-2-carbonyl chloride and indole-2-carbonyl chloride, respectively, rearranged in the presence of triethylamine to the enamino acids 7 and 12. In the presence of cyanide, 3b, also underwent the expected rearrangement to 4b, whereas only 7 was formed from 3a. Treatment of 7 with mercuric acetate in hot acetic acid resulted in decarboxylation and aromatization to phenol 9.

Two of the title compounds, recently identified as components of exudates produced by lace bug nymphs of the genus Corythucha , have been synthesized. 2-Acyl-3-hydroxy-2-cyclohexen-1-ones were converted to 3-alkyl-6,7-dihydro-1,2-benzisoxazol-4(5H)-ones which were hydroxylated at position 5, then reductively disassembled. Sodium borohydride and nickel chloride in DMF/THF containing 1-octene selectively reduced the isoxazole N-O bond without hydrogenating a side chain double bond.