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4-nitro-phenyl ester

Fig. 2 Use of imidazole units (13) binding the pyridine derivative (14) to generate imprinted polymers with esterolytic activity towards 4-nitro-phenyl-esters (15)... Fig. 2 Use of imidazole units (13) binding the pyridine derivative (14) to generate imprinted polymers with esterolytic activity towards 4-nitro-phenyl-esters (15)...
Als aktiviert sind in diesem Zusammenhang auch Phosphorsaure-ester zu verstehen, die leicht nucleophil substituierbare (nucleofuge) Reste als Alkohol-Komponente enthalten. Ein interessantes Beispiel hierfiir sind Phosphorsaure-(2-chlormethyl-4-nitro-phenyl-ester), aus welchen mit Pyridin besonders reaktive Intermediate entstehen, die mit Alkoholen oder Phenolen glatt unter Bildung entsprechender Diester (55—97%) reagieren83,84 ... [Pg.501]

Das aus Triphenylphosphan, Di-2-pyridyl-disulfan und Phosphorsaure-(4-nitro-phenyl-ester) in einer Eintopfreaktion entstehende Intermediat Phosphorsaure-(4-nitro-phenyl-ester)-triphenylphosphonioester wird mit Alkyl-, Dialkyl- bzw. Aryl-aminen im Ver-haltnis 1 3 zu dem entsprechenden Phosphorsaure-amid-0-(4-nitro-phenyl-estern) (75-90% gespalten139 [s.a. Bd. XII/2 (4. Aufl.), S. 400] ... [Pg.511]

Methan- -(2-methyl-propylestcr)-(4-nitro-phenyl-ester)... [Pg.1038]

Benzol-thiosulfonsaure-(4-nitro-phenyl-ester)/Triethylamin XII/2, 678 4-Nitro-benzolsulfonylchlorid XII/2, 673 -0,S-diethylester O (4 nitro- phenylester) XII/2,... [Pg.1110]

Reports on the resolution of neutral, racemic thiophosphonic diesters or related compounds by chromatographic means are very few. However, the resolutions of O-ethyl O-4-cyanophenyl phenylphosphonothioate, (cyanfenfos) and of the analogous 0-4-nitro-phenyl ester (ENP) have been achieved by HPLC on a poly(triphenylmethyl methacrylate) support ... [Pg.417]

The free trans-acid has m 54" (fromEtOAc), and the free cis-acidha m 113-116° (fromEtOAc). The 4-nitro-phenyl ester has m 44-45" (from petroleum ether) [Campbell Harper J Chem Soc 283 1945, IR Allen et al. J Org Chem 22 1291 1957], [Beilstein 9 II45.]... [Pg.247]

See other pages where 4-nitro-phenyl ester is mentioned: [Pg.113]    [Pg.561]    [Pg.1048]    [Pg.1051]    [Pg.1081]    [Pg.1100]    [Pg.1101]    [Pg.1109]    [Pg.1112]    [Pg.1112]    [Pg.612]    [Pg.612]    [Pg.772]    [Pg.671]   


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3-methyl-4-nitro-phenyl ester

3-methyl-4-nitro-phenyl ester hydrolysis

4 -Nitro-2-phenyl

Nitro esters

Phenyl esters

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