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Cas Database

Name	3',5'-Dibenzyloxyacetophenone	EINECS	249-315-7
CAS No.	28924-21-2	Density	1.144 g/cm³
PSA	35.53000	LogP	5.04720
Solubility	N/A	Melting Point	60-62 °C(lit.)
Formula	C₂₂H₂₀O₃	Boiling Point	489.5 °C at 760 mmHg
Molecular Weight	332.399	Flash Point	242.1 °C
Transport Information	N/A	Appearance	beige crystalline powder
Safety	24/25	Risk Codes	N/A
Molecular Structure		Hazard Symbols	Xi
Synonyms	Acetophenone,3',5'-bis(benzyloxy)- (8CI);1-[3,5-Bis(benzyloxy)phenyl]ethanone;3',5'-Bis(benzyloxy)acetophenone;	Article Data	20

3',5'-Dibenzyloxyacetophenone Synthetic route

: 51863-60-6
3,5-dihydroxyacetophenone

: 100-39-0
benzyl bromide

: 28924-21-2
3,5-dibenzyloxyacetophenone

Conditions

Conditions	Yield
With potassium carbonate In acetone at 100℃; for 3h;	100%
Stage #1: 3,5-dihydroxyacetophenone With potassium carbonate In acetone for 0.166667h; Stage #2: benzyl bromide In acetone at 20℃; for 10h;	97%
With potassium carbonate In acetone for 18h; Reflux;	86%

: 28924-18-7
2-bromo-1-[3,5-bis(phenylmethoxy)phenyl]ethanone

A: 103145-39-7
2-bromo-1-(3,5-bis(benzyloxy)phenyl)ethanol

B: 28924-21-2
3,5-dibenzyloxyacetophenone

C: (R)-1-(3,5-dibenzyloxyphenyl)ethanol

Conditions

Conditions	Yield
With sodium formate; cetyltrimethylammonim bromide; sodium dodecyl-sulfate; (R,R)-TsDPEN; dichloro(pentamethylcyclopentadienyl)rhodium (III) dimer In water at 28℃; for 2.5h;	A 90% B n/a C n/a

: 87975-69-7
1-(3,5-Bis-benzyloxy-phenyl)-ethanone oxime

: 28924-21-2
3,5-dibenzyloxyacetophenone

Conditions

Conditions	Yield
With triethylammonium chlorochromate(VI) In 1,2-dichloro-ethane for 2h;	88%

: 51863-60-6
3,5-dihydroxyacetophenone

: 100-44-7
benzyl chloride

: 28924-21-2
3,5-dibenzyloxyacetophenone

Conditions

Conditions	Yield
With potassium carbonate In N,N-dimethyl-formamide at 80 - 90℃; Reagent/catalyst; Temperature;	85%
With potassium carbonate In acetone at 60℃; for 4h; Temperature;	82%
With potassium carbonate Alkylation;

: 90664-17-8
1-(3,5-Dibenzyloxyphenyl)-2-methylsulfonyl-1-ethanon

: 28924-21-2
3,5-dibenzyloxyacetophenone

Conditions

Conditions	Yield
With zinc In methanol; acetic acid for 0.0833333h;	72%

: 1-(3,5-Bis-benzyloxy-phenyl)-hexane-1,3,5-trione

A: 28924-21-2
3,5-dibenzyloxyacetophenone

B: 28917-43-3
3,5-dibenzyloxybenzoic acid

Conditions

Conditions	Yield
With manganese triacetate; acetic acid for 22h; Ambient temperature;	A 3% B 4%

: 50513-72-9
(3,5-di-benzyloxy)benzoic acid benzyl ester

: 28924-21-2
3,5-dibenzyloxyacetophenone

Conditions

Conditions	Yield
Multi-step reaction with 2 steps 1: 76 percent / lithium 2,2,6,6-tetramethylpiperidide / tetrahydrofuran / 1.) 0 deg C, 45 min, 2.) r.t., 1 h 2: 3 percent / manganese(III) acetate, acetic acid / 22 h / Ambient temperature View Scheme
Multi-step reaction with 2 steps 1: 1) 50percent NaH / 1) DMSO, 60 deg C, 90 min, 2) THF, 60 deg C, 1 h 2: 72 percent / Zn / methanol; acetic acid / 0.08 h View Scheme

: 28924-21-2
3,5-dibenzyloxyacetophenone

: 28924-18-7
2-bromo-1-[3,5-bis(phenylmethoxy)phenyl]ethanone

Conditions

Conditions	Yield
With tetra-N-butylammonium tribromide In tetrahydrofuran; methanol at 20℃; for 24h;	100%
With bromine In dichloromethane at 20℃;	80%
With phenyltrimethylammonium tribromide In dichloromethane at 20℃; for 3h;	38%

: 28924-21-2
3,5-dibenzyloxyacetophenone

: 1-[3,5-bis(benzyloxy)phenyl]-2-bromoethanol

Conditions

Conditions	Yield
Stage #1: 3,5-dibenzyloxyacetophenone With copper(ll) bromide In dichloromethane for 3h; Reflux; Stage #2: With potassium borohydride In methanol at 10 - 15℃; for 1h; Solvent; Reagent/catalyst;	98%

: 5344-90-1
2-Aminobenzyl alcohol

: 28924-21-2
3,5-dibenzyloxyacetophenone

: C29H23NO2

Conditions

Conditions	Yield
With iron(III) oxide; potassium tert-butylate In toluene for 15h; Inert atmosphere; Sealed tube;	95%

3',5'-Dibenzyloxyacetophenone Chemical Properties

The molecular formula of 3,5-Dibenzyloxyacetophenone(28924-21-2) is C₂₂H₂₀O₃ and its formula weight is 332.39.
3,5-Dibenzyloxyacetophenone(28924-21-2) has a melting point of 60-62 °C(lit.).
The chemical synonyms of 3,5-Dibenzyloxyacetophenone(28924-21-2) are 3',5'-DIBENZYLOXYACETOPHENONE;3,5-DIBENZYLOXYACETOPHENONE;3',5'-DIBENZYLOXYACETPHENONE;3',5'-BIS(BENZYLOXY)ACETOPHENONE;1-[3,5-bis(phenylmethoxy)phenyl]-ethanon;3',5'-Dibenzyloxyacetophenone 3,5-Dibenzyloxyacetophenone;(3,5-BIS-BENZYLOXY-PHENYL)-METHANOL;Terbutaline3,5-DibenzylOxyAcetophenone
The molecular structure of 3,5-Dibenzyloxyacetophenone(28924-21-2):

3',5'-Dibenzyloxyacetophenone Toxicity Data With Reference

RTECS#: CAS# 28924-21-2: None listed
LD50/LC50: RTECS: Not available.
Carcinogenicity: 3,5-DIBENZYLOXYACETOPHENONE, 98% - Not listed as a carcinogen by ACGIH, IARC, NTP, or CA Prop 65.

3',5'-Dibenzyloxyacetophenone Safety Profile

Hazard Codes : Xi
Safety Statements : S24/25:Avoid contact with skin and eyes.;
WGK Germany : 3
Hazard Note : Irritant

3',5'-Dibenzyloxyacetophenone Specification

Chemical Stability: Stable under normal temperatures and pressures.
Conditions to Avoid: Strong oxidants.
Incompatibilities with Other Materials Not available
Hazardous Decomposition Products Carbon monoxide, irritating and toxic fumes and gases, carbon dioxide.
Hazardous Polymerization Has not been reported.

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