Condensation reactions of a comenaldehyde derivative | Zendy

Looker James H. | Zendy; Shaneyfelt Duane L. | Zendy; Halfar Wayne | Zendy

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Condensation reactions of a comenaldehyde derivative

Author(s) -

Looker James H.,

Shaneyfelt Duane L.,

Halfar Wayne

Publication year - 1979

Publication title -

journal of heterocyclic chemistry

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.321

H-Index - 59

eISSN - 1943-5193

pISSN - 0022-152X

DOI - 10.1002/jhet.5570160638

Subject(s) - chemistry , pyran , malonic acid , cyanoacetamide , hydroxymethyl , condensation , ether , ethyl acetoacetate , derivative (finance) , ethyl cyanoacetate , organic chemistry , medicinal chemistry , malononitrile , catalysis , physics , financial economics , economics , thermodynamics

Condensation reactions of comenaldehyde methyl ether (I) with malonic acid, ethyl cyanoacetate, and cyanoacetamide to give β‐(5‐methoxy‐4 H ‐pyran‐4‐on‐2‐yl)acrylic acid (II), ethyl 2‐cyano‐3‐(5‐methoxy‐4 H ‐pyran‐4‐on‐2‐yl)propenoate (III), and 2‐cyano‐3‐(5‐methoxy‐4 H ‐pyran‐4‐on‐2‐yl)propenamide (IV), respectively, are described. Ultraviolet absorption spectra for 2‐hydroxymethyl‐5‐methoxy‐4 H ‐pyran‐4‐one, I and II are presented.

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