kw.\*:("SPIRO(BENZOFURANNE-3:4P-COUMARINE) (DICHLORO-5,6P DIMETHYL-7,8P OXO-2 TETRAHYDRO-2,3,3P,4P)\!FIN")
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AN ANOMALOUS BY PRODUCT IN THE VON PECHMANN REACTIONBELLETIRE JL; DONAHVE K; KELLOGG M et al.1979; J. HETEROCYCL. CHEM.; USA; DA. 1979; VOL. 16; NO 4; PP. 803-804; BIBL. 7 REF.Article
