ACETALS AND VINYL ETHERS OF UNSATURATED A LDEHYDES AND KETONES IN NEWSYNTHESES OF HETEROCYCLIC-COMPOUNDS .5. FORMATION OF SUBSTITUTED FURO[3,4-B]TROPYLIUMS UNDER THE ACIDIC CATALYSIS FROM 3,4-DIACETYLHEXANE-2,5-DIONE, ORTHOESTERS AND AROMATIC-ALDEHYDES
Ep. Olekhnovich et al., ACETALS AND VINYL ETHERS OF UNSATURATED A LDEHYDES AND KETONES IN NEWSYNTHESES OF HETEROCYCLIC-COMPOUNDS .5. FORMATION OF SUBSTITUTED FURO[3,4-B]TROPYLIUMS UNDER THE ACIDIC CATALYSIS FROM 3,4-DIACETYLHEXANE-2,5-DIONE, ORTHOESTERS AND AROMATIC-ALDEHYDES, ZH ORG KH, 32(6), 1996, pp. 891-896