Am. Fivush et Sr. Strunk, A UNIQUE AND CONVENIENT ONE-STEP PREPARATION OF SPIRO[4.5]DECA-6,9-DIENE-2,8-DIONE, Synthetic communications, 26(8), 1996, pp. 1623-1627
A facile one-step synthesis of spiro[4.5]deca-6,9-diene-2,8-dione(1) f
rom p-methoxyphenylacetyl chloride via a Friedel-Crafts acylation foll
owed by ring closure is reported.