Product Name

  • Name

    4-[1-(hydroxyamino)ethylidene]cyclohexa-2,5-dien-1-one

  • EINECS
  • CAS No. 34523-34-7
  • Article Data36
  • CAS DataBase
  • Density 1.246 g/cm3
  • Solubility
  • Melting Point 142-144°C
  • Formula C8H9NO2
  • Boiling Point 294.8 °C at 760 mmHg
  • Molecular Weight 151.165
  • Flash Point 132.1 °C
  • Transport Information
  • Appearance
  • Safety
  • Risk Codes
  • Molecular Structure Molecular Structure of 34523-34-7 (4-[1-(hydroxyamino)ethylidene]cyclohexa-2,5-dien-1-one)
  • Hazard Symbols
  • Synonyms Acetophenone,4'-hydroxy-, oxime (7CI);1-(4-Hydroxyphenyl)-1-ethanone oxime;1-(4-Hydroxyphenyl)ethanone oxime;4'-Hydroxyacetophenone oxime;NSC 77904;p-Hydroxyacetophenone oxime;
  • PSA 52.82000
  • LogP 1.59040

Synthetic route

4-Hydroxyacetophenone
99-93-4

4-Hydroxyacetophenone

4-hydroxyacetophenone oxime
34523-34-7

4-hydroxyacetophenone oxime

Conditions
ConditionsYield
With hydroxylamine hydrochloride; sodium acetate In ethanol; water Reflux;100%
With hydroxylamine hydrochloride; sodium acetate In water for 1h; Heating;98%
With hydroxylamine hydrochloride; sodium acetate In ethanol; water Reflux;91%
4-Hydroxyacetophenone
99-93-4

4-Hydroxyacetophenone

A

4-acetaminophenol
103-90-2

4-acetaminophenol

B

4-hydroxyacetophenone oxime
34523-34-7

4-hydroxyacetophenone oxime

Conditions
ConditionsYield
With hydroxylamine hydrochloride In acetonitrile at 70℃; for 15h;A 90%
B 8%
With hydroxylamine hydrochloride at 70 - 110℃; Solvent; chemoselective reaction;
4-Hydroxyacetophenone
99-93-4

4-Hydroxyacetophenone

A

N-Methyl 4-hydroxy benzamide
27642-27-9

N-Methyl 4-hydroxy benzamide

B

4-acetaminophenol
103-90-2

4-acetaminophenol

C

4-hydroxyacetophenone oxime
34523-34-7

4-hydroxyacetophenone oxime

Conditions
ConditionsYield
With hydroxylamine sulfate at 80℃; for 2.5h;A 15%
B 85%
C n/a
With hydroxylamine sulfate at 80℃; for 2.5h;A 15%
B 83%
C n/a
N-Methyl 4-hydroxy benzamide
27642-27-9

N-Methyl 4-hydroxy benzamide

4-hydroxyacetophenone oxime
34523-34-7

4-hydroxyacetophenone oxime

Conditions
ConditionsYield
With hydrogenchloride; acetic acid In water at 75℃; for 10h; Retrobeckmann rearrangement;80%
hydroxylamine phosphate

hydroxylamine phosphate

4-Hydroxyacetophenone
99-93-4

4-Hydroxyacetophenone

4-hydroxyacetophenone oxime
34523-34-7

4-hydroxyacetophenone oxime

Conditions
ConditionsYield
With ammonium hydroxide In water21.0 g (92.6%)
With ammonium hydroxide In water21.0 g (92.6%)
With ammonium hydroxide In water21.0 g (92.6%)
acetophenone
98-86-2

acetophenone

4-Hydroxyacetophenone
99-93-4

4-Hydroxyacetophenone

4-hydroxyacetophenone oxime
34523-34-7

4-hydroxyacetophenone oxime

Conditions
ConditionsYield
With hydroxylamine hydrochloride In pyridine
4-hydroxyacetophenone oxime
34523-34-7

4-hydroxyacetophenone oxime

4-acetaminophenol
103-90-2

4-acetaminophenol

Conditions
ConditionsYield
With 1,1,1,3',3',3'-hexafluoro-propanol; perfluoropinacol; 2-methoxycarbonylphenylboronic acid In nitromethane at 20℃; for 24h; Beckmann Rearrangement; chemoselective reaction;99%
With 2,2-dichloro-1,3-dicyclohexylimidazolidine-4,5-dione In acetonitrile at 80℃; for 0.333333h; Inert atmosphere; Schlenk technique; Green chemistry;98%
With carbon tetrabromide; Eosin Y; N,N-dimethyl-formamide In acetonitrile at 20℃; for 14h; Beckmann Rearrangement; Irradiation; Inert atmosphere; Green chemistry;96%
4-hydroxyacetophenone oxime
34523-34-7

4-hydroxyacetophenone oxime

4-Hydroxyacetophenone
99-93-4

4-Hydroxyacetophenone

Conditions
ConditionsYield
With toluene-4-sulfonic acid at 20℃; for 0.0166667h; neat (no solvent);96%
With water; dihydrogen peroxide; iodine In acetonitrile at 20℃; for 12h;92%
With formic acid; silica gel for 0.05h; microwave irradiation;91%
4-hydroxyacetophenone oxime
34523-34-7

4-hydroxyacetophenone oxime

acetic anhydride
108-24-7

acetic anhydride

4-acetyloxyacetophenone oxime

4-acetyloxyacetophenone oxime

Conditions
ConditionsYield
With m-nitrobenzene boronic acid at 20℃; for 12h;95%
4-hydroxyacetophenone oxime
34523-34-7

4-hydroxyacetophenone oxime

N-Methyl 4-hydroxy benzamide
27642-27-9

N-Methyl 4-hydroxy benzamide

Conditions
ConditionsYield
With boron trifluoride diethyl etherate In diethyl ether at 20℃; for 1h; Beckmann rearrangement;95%
With trifluoroacetic acid In acetonitrile at 109.84℃; Beckmann Rearrangement; Autoclave;
4-hydroxyacetophenone oxime
34523-34-7

4-hydroxyacetophenone oxime

4-acetamidophenyl sulfurofluoridate
16704-37-3

4-acetamidophenyl sulfurofluoridate

Conditions
ConditionsYield
Stage #1: 4-hydroxyacetophenone oxime With fluorosulfonyl fluoride; triethylamine In acetonitrile at 20℃; Beckmann Rearrangement;
Stage #2: With hydrogenchloride In water; acetonitrile at 20℃; Beckmann Rearrangement;
94%
4-hydroxyacetophenone oxime
34523-34-7

4-hydroxyacetophenone oxime

dichloromalononitrile
13063-43-9

dichloromalononitrile

C11H9Cl2N3O2

C11H9Cl2N3O2

Conditions
ConditionsYield
In dichloromethane Ambient temperature;93%
lithium tetrachloropalladate

lithium tetrachloropalladate

4-hydroxyacetophenone oxime
34523-34-7

4-hydroxyacetophenone oxime

(PdCl(N(OH)C(CH3)C6H3(OH)))2
419581-64-9

(PdCl(N(OH)C(CH3)C6H3(OH)))2

Conditions
ConditionsYield
With sodium acetate In methanol to soln. of Li2PdCl4 in MeOH added soln. of oxime and AcONa in MeOH; soln. stirred for 2-3 ds at room temp.; H2O added; ppt. filtered off; elem. anal.;92%
4-hydroxyacetophenone oxime
34523-34-7

4-hydroxyacetophenone oxime

4-(1-hydroxyamino-ethyl)-phenol

4-(1-hydroxyamino-ethyl)-phenol

Conditions
ConditionsYield
With Benzyltriethylammonium borohydride at 20℃; for 0.283333h; solid-phase conditions;86%
1-undecen-11-ylbromide
7766-50-9

1-undecen-11-ylbromide

4-hydroxyacetophenone oxime
34523-34-7

4-hydroxyacetophenone oxime

1-[4-(undec-10-enyloxy)phenyl]ethanone oxime

1-[4-(undec-10-enyloxy)phenyl]ethanone oxime

Conditions
ConditionsYield
With potassium carbonate In acetone for 24h; Heating;80%
4-hydroxyacetophenone oxime
34523-34-7

4-hydroxyacetophenone oxime

dimethyl 1-(1-diazo-2-oxopropyl)phosphonate
90965-06-3

dimethyl 1-(1-diazo-2-oxopropyl)phosphonate

4-(dimethoxyphosphoryl)-6-hydroxy-1,3-dimethylisoquinoline 2-oxide

4-(dimethoxyphosphoryl)-6-hydroxy-1,3-dimethylisoquinoline 2-oxide

Conditions
ConditionsYield
With bis[dichloro(pentamethylcyclopentadienyl)iridium(III)]; silver(I) triflimide In methanol at 30℃; for 12h;80%
4-hydroxyacetophenone oxime
34523-34-7

4-hydroxyacetophenone oxime

di-tert-butyl 2,3-diazabicyclo[2.2.1]hept-5-ene-2,3-dicarboxylate
39203-22-0

di-tert-butyl 2,3-diazabicyclo[2.2.1]hept-5-ene-2,3-dicarboxylate

C23H33N3O6

C23H33N3O6

Conditions
ConditionsYield
With dichloro(pentamethylcyclopentadienyl)rhodium (III) dimer; silver(I) acetate In methanol at 60℃; for 6h;78%
lithium tetrachloropalladate

lithium tetrachloropalladate

4-hydroxyacetophenone oxime
34523-34-7

4-hydroxyacetophenone oxime

sodium acetate
127-09-3

sodium acetate

di‐μ‐chlorobis [5‐hydroxy‐2‐[1‐(hydroxyimino‐κN) ethyl] phenyl‐κC] palladium (II)
419581-64-9

di‐μ‐chlorobis [5‐hydroxy‐2‐[1‐(hydroxyimino‐κN) ethyl] phenyl‐κC] palladium (II)

Conditions
ConditionsYield
In methanol C8H9NO2 (2 mmol) in MeOH and sodium acetate (2 mmol) added to Li2PdCl4 (2 mmol) in MeOH, stirred at room temp. for 72 h; filtered, pptd. with water added; elem. anal.;75%
4-hydroxyacetophenone oxime
34523-34-7

4-hydroxyacetophenone oxime

1-(4-hydroxyphenyl)ethanamine hydrochloride

1-(4-hydroxyphenyl)ethanamine hydrochloride

Conditions
ConditionsYield
With ammonia; sodium In methanol at 20℃; Cooling with dry ice;75%
Lawessons reagent
19172-47-5

Lawessons reagent

4-hydroxyacetophenone oxime
34523-34-7

4-hydroxyacetophenone oxime

4-[5-(4-methoxy-phenyl)-5-thioxo-4,5-dihydro-5λ5-[1,2,5]oxazaphosphol-3-yl]-phenol

4-[5-(4-methoxy-phenyl)-5-thioxo-4,5-dihydro-5λ5-[1,2,5]oxazaphosphol-3-yl]-phenol

Conditions
ConditionsYield
With sodium hydroxide; cetyltributylphosphonium bromide In dichloromethane; water at 20℃; Cyclization; elimination;72%
4-hydroxyacetophenone oxime
34523-34-7

4-hydroxyacetophenone oxime

4-methylphenylboronic acid
5720-05-8

4-methylphenylboronic acid

C15H15NO2
1408295-45-3

C15H15NO2

Conditions
ConditionsYield
With copper diacetate; caesium carbonate In dimethyl sulfoxide at 28℃; for 6h; Chan-Lam Coupling;70%
4-hydroxyacetophenone oxime
34523-34-7

4-hydroxyacetophenone oxime

phenylboronic acid
98-80-6

phenylboronic acid

C14H13NO2
1408295-44-2

C14H13NO2

Conditions
ConditionsYield
With copper diacetate; caesium carbonate In dimethyl sulfoxide at 28℃; for 24h; Chan-Lam Coupling;60%
4-hydroxyacetophenone oxime
34523-34-7

4-hydroxyacetophenone oxime

(4-acetoxyphenyl)boronic acid
177490-82-3

(4-acetoxyphenyl)boronic acid

C16H15NO4
1408295-46-4

C16H15NO4

Conditions
ConditionsYield
With copper diacetate; caesium carbonate In dimethyl sulfoxide at 28℃; for 30h; Chan-Lam Coupling;55%
1,3,5-trinitrobenzene
99-35-4

1,3,5-trinitrobenzene

4-hydroxyacetophenone oxime
34523-34-7

4-hydroxyacetophenone oxime

1-(4-hydroxyphenyl)ethanone O-(3,5-dinitrophenyl)oxime

1-(4-hydroxyphenyl)ethanone O-(3,5-dinitrophenyl)oxime

Conditions
ConditionsYield
With potassium carbonate In 1-methyl-pyrrolidin-2-one at 50℃; for 6h;49%
4-hydroxyacetophenone oxime
34523-34-7

4-hydroxyacetophenone oxime

2,2-dibromo-1-(3,5-dibromo-4-hydroxyphenyl)ethanone

2,2-dibromo-1-(3,5-dibromo-4-hydroxyphenyl)ethanone

Conditions
ConditionsYield
With hydrogen bromide; dihydrogen peroxide In water; acetic acid at 15 - 106℃; for 0.333333h;40%
4-hydroxyacetophenone oxime
34523-34-7

4-hydroxyacetophenone oxime

acetylene
74-86-2

acetylene

A

Z-1-(2-methylthiovinyl)pyrrole

Z-1-(2-methylthiovinyl)pyrrole

B

1-vinyl-2-(4-vinyloxyphenyl)pyrrole
111492-97-8

1-vinyl-2-(4-vinyloxyphenyl)pyrrole

Conditions
ConditionsYield
With potassium hydroxide In dimethyl sulfoxide at 100℃; under 7600 Torr; for 3h;A 0.05%
B 27%
4-hydroxyacetophenone oxime
34523-34-7

4-hydroxyacetophenone oxime

A

4-hydroxy-3,5-diiodoacetophenone oxime
1202385-73-6

4-hydroxy-3,5-diiodoacetophenone oxime

B

4-Hydroxyacetophenone
99-93-4

4-Hydroxyacetophenone

Conditions
ConditionsYield
With water; dihydrogen peroxide; iodine In methanol at 20℃; for 10h;A 10%
B 20%
4-hydroxyacetophenone oxime
34523-34-7

4-hydroxyacetophenone oxime

acetylene
74-86-2

acetylene

2-(4-vinyloxyphenyl)pyrrole
111492-96-7

2-(4-vinyloxyphenyl)pyrrole

Conditions
ConditionsYield
With potassium hydroxide In dimethyl sulfoxide at 100℃; for 5h;2%
4-hydroxyacetophenone oxime
34523-34-7

4-hydroxyacetophenone oxime

A

4-acetaminophenol
103-90-2

4-acetaminophenol

B

4-Hydroxyacetophenone
99-93-4

4-Hydroxyacetophenone

Conditions
ConditionsYield
With Tonsil In toluene for 3.5h; Heating;A 92.8 % Chromat.
B 5.9 % Chromat.
With trifluoroacetic acid at 79.84℃; for 18h; Beckmann Rearrangement;
4-hydroxyacetophenone oxime
34523-34-7

4-hydroxyacetophenone oxime

sodium amalgam

sodium amalgam

methanolic acetic acid

methanolic acetic acid

α-methyl-p-hydroxybenzylamine
134855-87-1

α-methyl-p-hydroxybenzylamine

Ethanone,1-(4-hydroxyphenyl)-, oxime Specification

This chemical is called Ethanone,1-(4-hydroxyphenyl)-, oxime, and its systematic name is 4-[1-(hydroxyamino)ethylidene]cyclohexa-2,5-dien-1-one. With the molecular formula of C8H9NO2, its molecular weight is 151.16. The CAS registry number of this chemical is 34523-34-7. Additionally, its product categories are Aromatic Hydrazides, Hydrazines, Hydrazones and Oximes.

Other characteristics of the Ethanone,1-(4-hydroxyphenyl)-, oxime can be summarised as followings: (1)ACD/LogP: 0.04; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): 0.04; (4)ACD/LogD (pH 7.4): 0.04; (5)ACD/BCF (pH 5.5): 1; (6)ACD/BCF (pH 7.4): 1; (7)ACD/KOC (pH 5.5): 25.01; (8)ACD/KOC (pH 7.4): 24.99; (9)#H bond acceptors: 3; (10)#H bond donors: 2; (11)#Freely Rotating Bonds: 2; (12)Polar Surface Area: 29.54 Å2; (13)Index of Refraction: 1.591; (14)Molar Refractivity: 40.98 cm3; (15)Molar Volume: 121.2 cm3; (16)Polarizability: 16.24×10-24cm3; (17)Surface Tension: 52.6 dyne/cm; (18)Density: 1.246 g/cm3; (19)Flash Point: 132.1 °C; (20)Enthalpy of Vaporization: 62 kJ/mol; (21)Boiling Point: 294.8 °C at 760 mmHg; (22)Vapour Pressure: 0.000166 mmHg at 25°C.

You can still convert the following datas into molecular structure: 
1.SMILES: O=C\1/C=C\C(=C(/NO)C)/C=C/1
2.InChI: InChI=1/C8H9NO2/c1-6(9-11)7-2-4-8(10)5-3-7/h2-5,9,11H,1H3
3.InChIKey: NOGIFJNJJZFUDN-UHFFFAOYAZ

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