Dibromo propionic acid

CgH8Br202 2,3-dibromo-propionic acid ethyl ester 3674-13-3... [Pg.212]

C7Hi2Bi 2 2 2,3-dibromo-propionic acid butyl ester 21179-48-6... [Pg.371]

C8Hi4Br202 2,3-dibromo-propionic acid 3-methyl-butyl ester 100983-14-0... [Pg.440]

The second method of preparation (shown in Scheme 2) depends on treating dehydroepiandrosterone (prepared from cholestrol or sitosterol) with acetylene to form the 17a-ethnyl-17p-hydroxy derivative, which is carbonated to the 17a-propionic acid. Reduction of the unsaturated acid in alkaline solution yields the saturated acid, which cyclizes to the lactone on acidification. Bromination to the 5,6-dibromo-compound, followed by oxidation of the hydroxyl group to the ketone, and then dehydro-bromination to the 7a-hydroxyl derivative, produces spironolactone when esterified with thiolacetic acid. [Pg.272]

SYNS ETHYL a,P-DIBROMOPROPIONATE ETHYL 2,3-DIBROMOPROPIONATE PROPANOIC ACID, 2,3-DIBROMO-, ETHYL ESTER PROPIONIC ACID, 2,3-DIBROMO-, ETHYL ESTER... [Pg.617]

Dibromo-4-methoxyphenyl) propionic acid nl b) 3-(Dibromo-3-methoxyphenyl) propionic acid nl b)... [Pg.158]

Nitrogen containing compounds 3-(Dibromo-2-methoxyphenyl) 3,3-Trimethyl-2-oxoindola) propionic acid (2 isomers)m,b)... [Pg.159]

Propionaldehyde, p-(4-t-butylphenyl)-a-methyl-. See 4-t-Butyl-a-methylhydrocinnamaldehyde Propionaldehyde, 2,3-dibromo-. See 2,3-Dibromopropionaldehyde Propionaldehyde, 2-methyl-2-(methylthio)-, O-(methylcarbamoyl) oxime. SeeAldicarb Propionaldehyde, 2-methyl-2-(methylthio)-, oxime. See Aldicarb oxime Propionaldehyde, 3-(methylthio)-. See3-Methylthiopropionaldehyde Propionamide, N,N-diethyl-2-(1-naphthyloxy)-. See Napropamide Propione. See Diethyl ketone Propionic acid... [Pg.3728]

C, and the diagram of inclusion complex of 6-CD with racemic eryt/2ro-2,3-dibromo-3-pheny 1-propionic acid. [Pg.832]

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