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Ethyl chelidonate

Ethyl rec.-hutylmalonate, 11, 22, 76, 77 Ethyl -butyrate, 13, 24 Ethyl carbonate, 11, 98 Ethyl chelidonate, 17, 40 Ethyl chloroacetate, 18, 10 Ethyl chloroformate, 12, 38 17, 49 Ethyl cinnamate, 12, 36 ETHYL a,0-DIBROMO-0-PHENYLPROFION-AIE, 12, 36, 60... [Pg.95]

The product named ethyl chelidonate on page 41, line 17, is actually acetonedioxalic ester [C0(CH2C0C02C2H5)2], since cy-clization does not occur until the subsequent operation. The equation at the top of page 40 should be modified accordingly. [Pg.99]

Natural chelidonic acid is obtained from the herb celandine Chelidonium majus). The synthesis from ethyl oxalate and acetone was first described by Claisen the process was simplified by Willstatter and Pummerer and further improved by Ruzicka and Fornasir.- The present procedure is modelled after that of the last-mentioned investigators. [Pg.42]

Oxopyran-2,6-dicarboxylic acid (chelidonic acid) is obtained from the base-catalyzed condensation of acetone with ethyl oxalate. The initial product is cyclized in acid... [Pg.811]

See other pages where Ethyl chelidonate is mentioned: [Pg.41]    [Pg.80]    [Pg.456]    [Pg.41]    [Pg.80]    [Pg.456]    [Pg.703]    [Pg.556]    [Pg.703]    [Pg.1364]   
See also in sourсe #XX -- [ Pg.17 , Pg.40 ]

See also in sourсe #XX -- [ Pg.17 , Pg.40 ]

See also in sourсe #XX -- [ Pg.17 , Pg.40 ]



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