Hydroxylamine, N-phenyl

HYDROXY-1-CYCLOHEXENE-1-CARBOXALDEHYDE 1-CYCLOHEXENE-1 -CARBOXALDEHYDE, 3-HYDROXY- (67252-14-6), 67, 205 (S)-(+)-3-HYDROXY-2,2-DIMETHYLCYCLOHEXANONE Cyclohexanone, 3-hydroxy-2,2-dimethyl-, (S)- (87655-21-8), 68, 56 Hydroxylamine, N-phenyl-, 67, 187 a-Hydroxylation of ketones, 66, 138... [Pg.148]

N-Phenyl hydroxy lamine Hydroxylamine, N-phenyl- Benzeneamine,... [Pg.156]

Hydroxylamin N-Phenyl-N-(phenyl-thio-methyl)- E14a/3, 500 (CH20 + R-SH + R-NH-OH)... [Pg.1129]

Electrolytic reductions generally caimot compete economically with chemical reductions of nitro compounds to amines, but they have been appHed in some specific reactions, such as the preparation of aminophenols (qv) from aromatic nitro compounds. For example, in the presence of sulfuric acid, cathodic reduction of aromatic nitro compounds with a free para-position leads to -aminophenol [123-30-8] hy rearrangement of the intermediate N-phenyl-hydroxylamine [100-65-2] (61). [Pg.263]

N-Phenyl-hydroxylamin ergibt in siedendem Ather in vergleichbaren Mengen Azobenzol und Anilin. ... [Pg.481]

Pyridin-l-oxid wird mit Hefe glatt zum Pyridin reduziert2. Aus Nitroso-benzolen wer-den mitHilfe vonHefen N-Phenyl-hydroxylamine bzw. Aniline4 (z. B.aus4-Nitro-so-phenol 40% d.Th. 4-Amino-phenol) erhalten. [Pg.783]

N-Diphenylmethylen- 374 N-Diphenylmethylen-O-aminocarbonyl- 612 N-[l,3-Diphenyl-propyl-(2) - 374 N-[l,3-Diphenyl-propyliden-(2)]- 374, 377, 380 N-(4-Halogen-phenyI)- 683 N-Heptyl- 375 N-Heptyl-N-acetyl- 376 N-Heptyliden- 375 N-Hcptyliden-O-acetyl- 376 0-(2-Hydroxy-athyl)-N-athoxycarbonyl- 133 N-(4-Hydroxy-phenyl)- 683 0-(2-Hydroxy-l-phenyl-athyI)-N-athoxycarbonyI-aus 0-(ci-AthoxycarbonyI-benzyl)-N-athoxycar-bonyl-hydroxylamin und Lithiumalanat 133 N-Isopropyl- 682 N-Isopropylidcn- 613 N-Methyl- 133, 682 O-Methyl-N-bcnzyliden- 377 O-Methyl-N-benzyliden- 375 0-Methyl-N-(4-chlor-benzyl)- 375 0-Methyl-N-(4-chlor-benzyliden)- 375 N-Methy -N,0-diacetyI- 682 N-(4-Methyl-phenyl)- 683 0-McthyI-N-( 1 -phenyl-athyliden)- 375 N-(4-Methylthio-phenyl)- 684 N-(4-Nitro-benzyl)- 374 N-[4-Nitro-benzyliden - 374, 377 N-(2-Nitro-phenyl)- 562 N-(4-Nitro-phenyl)- 682 N-Nitroso-N-cyclohexyl- 697 N-Octyl- 374 N-Octyl-(2)-N-acetyl- 376 N-Octyliden- 374 N-0ctyliden-(2)-0-acctyl- 376 N-(Pentafluor-phenyl)-0,N-diacetyl- 697 N-Phenyl- 474, 481, 682, 783 N-Phenylacetyl-O-benzoyl- 265 N-(l-Phenyl-athyl)- 374 N-(l-Phenyl-athyl)-N-acetyl- 376 N-(l-Phenyl-athyliden)-374, 613 N-( l-Phenyl-athyliden)-0-acetyl- 376 N-[ 1 -Phenyl-buten-( 1 )-yl-(3)-iden]- 582 N-f4-Phenyl-butyl-(2)-iden]- 581 N-Phcnyl-N,0-diacetyl- 682 N-(4-Phenylthio-phenyl)- 684 N-Propyl-N-cyclohexyl- 376 N-Propyl-N-isopropyl- 376 O-Sulfonyl- 481 N-(4-Sulfonyl-phenyI)- 683 N-(2-Vinyl-phenyl)- 698... [Pg.907]

Hardcastle JL, Compton RG (2001) The electroanalytical detection and determination of copper in heavily passivating media ultrasonically enhanced solvent extraction by N-benzoyl-N-phenyl-hydroxylamine in ethyl acetate coupled with electrochemical detection by sono-square wave stripping voltammetry analysis. Analyst 126 2025-2031... [Pg.127]

Bei der Umsetzung von Bis-[diphenyl-methylen]-ammonium-Salzen (hergestellt aus geminalen Dihalogeniden und Carbonsaure-nitrilen in Gegenwart von Antimon(V)-chlorid) mit N-Phenyl-hydroxylamin erhalt man 2,3,5-Triphenyl-1,2,4-oxadiazolium-hexachloroantimonat( /) (70% Schmp. 146-1480)276 ... [Pg.456]

Die Reaktion von N-Phenyl-hydroxylamin sowie seinen 2-Methyl-, 3-Methyl-, 2-Chlor-und 2-Ethoxycarbonyl-Derivaten mit Fluorwasserstoff bei tiefer Temperatur ergibt 4-Fluor-aniline in maBigen Ausbeuten2. Es handelt sich um eine Variante der Bamber-ger-Reaktion (s.Bd.XI/1, S.471). [Pg.1138]

Williams and co-workers provided solvent isotope effect data that supported the mechanism of Scheme 4P The rearrangement of N-phenyl-hydroxylamine (pAl = 1.9) in aqueous H2SO4 exhibits an inverse solvent isotope effect at pH > 2 and a normal solvent isotope effect of 1.5 in the plateau region at pH < 1.0. This is expected for the mechanism of Scheme 4... [Pg.171]

The similarity of the results obtained with phenyl azide and N-phenyl-hydroxylamine in benzene/TFA indicates that both reactions proceed by similar mechanisms, but N-phenylhydroxylamine in benzene/TFSA produces a higher yield of the C-substitution products 27 and 28 As previously suggested (Scheme 5), N-phenylhydroxylamine can be doubly protonated to yield the dication 11 in strong acids, but the more weakly basic phenyl azide is less likely to be doubly protonated. The differences observed between the behavior of N-phenylhydroxylamine and phenyl azide in TFSA may be due to the inability of phenyl azide to directly generate 11. [Pg.177]

In a similar reaction, 2-(o-nitrophenyl)ethylamine (100) may be reduced in an ammonia buffer to the hydroxylamine and oxidized to the nitroso derivative, which condenses with the amino group to a dihydrocinnoline.160,161 It is also possible to prepare dihydrobenzo-l,2,3-triazinones on reduction of o-nitrobenzhydrazide, followed by oxidation of the hydroxylamine to a nitroso group, and 3-phenyldihydrobenzo-l,2,3-triazine (101) from N-phenyl-(V-(o-nitrobenzyl)hydrazine (100) in an analogous way161 [Eq. (78)]. [Pg.280]

N-(2-Fluoro-phenyl) Trifluoro-EI0b, 36 (Ar H -f Ar F) N-(4-Fluoro-phenyl) Trifluoro-EI0b,. 36 (Ar-H -f Ar-E) Carbamidoyl Fluoride N-Phenyl-N-trifluoromethyl- F4, 1208 (Ar-NCS + HgF2 COF2/CsF) Hydroxylamine N-(4-Eihenyl-tetrafluoro-phenyl)- EI6a/l, 5f. (F -b NH-OH)... [Pg.647]

Hydroxylamine N-(4,5-Dihydro-2-imidazolyl)-N-(6-fluoro-2-tri-fluoromcthyl-phenyl)-6-meth l-EI6a/l. 296 (OH OR)... [Pg.684]

Hydroxylamine N-(4-Trifluorome-lhyl-phenyl)-( 1.1,2-trimcthyl-allyl)- E16a/1. 150 (Ar —NO +... [Pg.701]

Hydroxylamine, O-acetyl-N-benzoyl-N-phenyl-hydroxamic acids from, 506 Hydroxylamine ligands, 101 Hydrozirconation, 342 Hypoxanthines metal complexes, 93... [Pg.1082]

The 0—H bond of disubstituted hydroxylamine is, in general, easy to cleave homolytically since nitric oxide is produced, a radical well known for its high stability (Harle and Thomas, 1957 Buchachenko, 1962). Preparative evidence was given by Banfield and Kenyon (1926) by the production of a stable free radical in the mild oxidation of the corresponding N-phenyl-N-alkylhydroxylamine. [Pg.154]

Furfural -methylnitron X/4, 354f. Hydroxylamin N-(3-Hydroxy-phenyl)- E16a, 63 (N02-Red.)... [Pg.273]

Hydroxylamin N-(Tetrafluor-4-trifluormethyl-phenyl)- E16a, 6 (N-Aryi.), 22 (N-R1 — N-R2)... [Pg.340]

Hydroxylamin N-(4-Brom-phenyl)-N-formyl- E5, 1151 (OHC-COOH + Ar-NO) Methan... [Pg.355]

Hydroxylamin N-(2,6-Dichlor-phenyl)-N-(4,S-dihydro-2-imidazolyl)- -Hydrochlorid E13/2, 1344 (N-Hydroxylierung)... [Pg.598]

Essigsaure (Phenylmethansulfonyl-amino)- XV/1, 242 Hydroxylamin N-(l-Methyl-2-phenyl-ethyliden)-0-Sulfo-(K-Salz) X/4, 73... [Pg.625]

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