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Ethyl 6,7-dimethoxy-3-methylindene-2-carboxylate

An example of several PPA cyclizations studied by Koo - " is the preparation of ethyl 6,7-dimethoxy-3-methylindene-2-carboxylate (13). The keto ester (12) is added to PPA precooled to 5° in a beaker, and the mixture is stirred thoroughly... [Pg.451]

Polyphosphoric acid in cyclization of ethyl a-acetyl-/3-(2,3-dimethoxy-phenyl)propionate to 6,7-dimeth-oxy-3-methylindene-2-carboxyl-ate, 40, 43... [Pg.121]

See other pages where Ethyl 6,7-dimethoxy-3-methylindene-2-carboxylate is mentioned: [Pg.44] [Pg.712] [Pg.23] [Pg.83] [Pg.83] [Pg.44] [Pg.712] [Pg.23] [Pg.83] [Pg.83]

See also in sourсe #XX -- [ Pg.40 , Pg.43 ]

See also in sourсe #XX -- [ Pg.40 , Pg.43 ]

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2,5-dimethoxy-4-ethyl

Ethyl 4 -carboxylates

Methylindene