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Cycloalkanones spiroannelation

The synthesis of some 2,2-spiroannelated chroman-4-ones from o-hydroxyacetophenone and a cycloalkanone in the presence of a secondary amine has been described (78S886). The reaction has also been used to prepare a range of chromanones bearing non-identical or... [Pg.852]

See also in sourсe #XX -- [ Pg.3 , Pg.88 ]

See also in sourсe #XX -- [ Pg.88 ]

See also in sourсe #XX -- [ Pg.3 , Pg.88 ]



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Cycloalkanone

Spiroannelation

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