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Pyruvic acid ethyl ester

Addition of 2-pyrazolines to tetrazines gave 330 (84AP237 88CZ17). The pyrazolotriazine derivative 331 was prepared (76MI6) by treating diamino guanidine with acetyl pyruvic acid ethyl ester in either acid or neutral aqueous solution (Scheme 70). [Pg.79]

Pyruvic acid, 31, 59, 61 Pyruvic acid, ethyl ester, 31, 59 Pyruvic aldehyde-sodium bisulfite, 30, 88... [Pg.60]

The a-cyano-a-naphthyl pyruvic acid ethyl ester shows a hydroxyl band at 3190 cm. 1 which is attributed to chelation (very strong intramolecular hydrogen bonding) (2). At 1717 cm. 1 it gives the a,/3-unsaturated carbonyl band of the enol form (lit. Ref. 2, 1715-1730 cm. 1). The phenyl ester shows the same bands at 3190 and 1717.5 cm. 1, respectively, whereas the thiophene ester spectrum shows intermolecular hydrogen bonding at 3310 cm.-1. Since the a-keto ester carbonyl band of the keto... [Pg.69]

Figure 1. NMR spectrum of a-cyano-a-naphthyl pyruvic acid ethyl ester in deuterochloroform at room temperature. The three naphthyl ester spectra are given here. The spectra of the other two esters were interpreted in a similar... Figure 1. NMR spectrum of a-cyano-a-naphthyl pyruvic acid ethyl ester in deuterochloroform at room temperature. The three naphthyl ester spectra are given here. The spectra of the other two esters were interpreted in a similar...
Figure 2. NMR spectrum of a-cyano-a-naphthyl pyruvic acid ethyl ester in deuterochloroform with TFE... Figure 2. NMR spectrum of a-cyano-a-naphthyl pyruvic acid ethyl ester in deuterochloroform with TFE...
ETHYL PYRUVATE (Pyruvic acid, ethyl ester)... [Pg.59]

Pyruvic acid ethyl ester. See Ethyl pyruvate Pyruvic acid, sodium salt. See Sodium pyruvate Pyruvic aldehyde. See Pyruvaldehyde Pyruvophenone. See 1-Phenyl-1,2-propanedione... [Pg.3798]

See other pages where Pyruvic acid ethyl ester is mentioned: [Pg.67]    [Pg.67]   
See also in sourсe #XX -- [ Pg.31 , Pg.59 ]

See also in sourсe #XX -- [ Pg.31 , Pg.59 ]

See also in sourсe #XX -- [ Pg.31 , Pg.59 ]

See also in sourсe #XX -- [ Pg.31 , Pg.59 ]

See also in sourсe #XX -- [ Pg.31 , Pg.59 ]

See also in sourсe #XX -- [ Pg.5 , Pg.31 , Pg.117 ]

See also in sourсe #XX -- [ Pg.31 , Pg.59 ]

See also in sourсe #XX -- [ Pg.31 , Pg.59 ]

See also in sourсe #XX -- [ Pg.31 , Pg.59 ]

See also in sourсe #XX -- [ Pg.31 , Pg.59 ]

See also in sourсe #XX -- [ Pg.31 , Pg.59 ]



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Ester pyruvates

Ethyl pyruvate

Ethyl pyruvates

Pyruvate esters

Pyruvate/pyruvic acid

Pyruvic acid

Pyruvic acid esters

Pyruvic acid, ethyl ester, reaction with

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