For citation:
Mazhukina О. А., Fedotova О. V. Morden Aspects in Chemistry of Condensed 2H-chromen-2-ones. Izvestiya of Saratov University. Chemistry. Biology. Ecology, 2010, vol. 10, iss. 2, pp. 3-7. DOI: 10.18500/1816-9775-2010-10-2-3-7
Morden Aspects in Chemistry of Condensed 2H-chromen-2-ones
The bromination of condensed chromen-2-ones is carried out. The influence of medium on the reaction occurrence has been studied. In the acidic acid solution aromatization of the 4H-pyrane fragment or hydrogen atom substitution at the tertiary carbon atom takes place. In chloroform, addi tion of bromine by the double bond occurs. Mixture of tetrachloromethane and propanol-2 promotes the intermolecular dehydration with the formation of ether bond.
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