Abstract
By reaction of excess benzaldehyde with cyclohexene in presence of sulfuric acid besider-2,c-4-diphenyl-(t-4aH,c-8aH)-hexahydro-4H-1,3-benzodioxin (2) andr-4-phenyl-(t-4aH,c-8aH)-hexahydro-4H-1,3,2-benzodioxathiin-2,2-dioxide (3),trans-2-benzyloxycyclohexyl phenyl ketone (5) and (E)-3-benzylidene-1-cyclohexenyl phenyl ketone (6) are obtained. The formation of5 and6 is shown to proceed via an acid catalyzedCannizzaro reaction of benzaldehyde.
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2. Mitt.:H. Griengl undK. P. Geppert, Mh. Chem.107, 675 (1976).
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Griengl, H., Nowak, P. Prins-Reaktionen mit Arylaldehyden, 3. Mitt.. Monatshefte für Chemie 108, 407–416 (1977). https://doi.org/10.1007/BF00901994
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DOI: https://doi.org/10.1007/BF00901994