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2-Alkylidene-5-oxazolones

Conversion of azlactones to other heterocyclics 1,2,4-Triazines from 4-alkylidene-5-oxazolones... [Pg.116]

Alkylidene-5-oxazolones from a-acyiamino-) -hydroxycarboxylic acids... [Pg.482]

Triazines from 4-alkylidene-5-oxazolones via a-ketocarboxylic acid thiosemicarbazones s. 18, 475 ring closure s. a. Pharmazie 20, 75 (1965)... [Pg.529]

Alkylidene-5-oxazolones from a-acylaminocarboxylic acids, also a-alkylidene-y-enollactones s. 17, 836... [Pg.624]

Saturated azlactones are colorless liquids or low-melting solids. Unsaturated azlactones are solids, often high-melting, and the majority have colors tanging from Ught yellow th dark red. The color, is most intense in 2-aryl-4-aralkylidene-5-oxazolones the 2-alkyl-4-alkylidene-5-oxazolones are colorless. [Pg.213]

See other pages where 2-Alkylidene-5-oxazolones is mentioned: [Pg.255]    [Pg.96]    [Pg.269]    [Pg.419]    [Pg.526]    [Pg.64]    [Pg.271]    [Pg.292]    [Pg.292]    [Pg.292]    [Pg.319]    [Pg.362]    [Pg.443]    [Pg.476]    [Pg.165]    [Pg.216]    [Pg.26]    [Pg.253]    [Pg.253]    [Pg.256]    [Pg.258]    [Pg.430]    [Pg.229]    [Pg.229]    [Pg.229]    [Pg.232]    [Pg.240]    [Pg.248]    [Pg.278]   


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4-Alkylidene-5-oxazolones a-acylaminocarboxylic acid

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