Conditions | Yield |
---|---|
With ethanol; water at 60 - 80℃; for 9h; Temperature; Green chemistry; | 99% |
With water In ethanol at 40 - 50℃; for 4h; Temperature; Large scale; | 97.6% |
With ethanol und Eintragen des Reaktionsgemisches in heisses Wasser; |
Conditions | Yield |
---|---|
With phosphotungstic acid In 5,5-dimethyl-1,3-cyclohexadiene at 130℃; for 5h; Catalytic behavior; Temperature; Friedel-Crafts Acylation; | 99% |
With aluminum oxide; methanesulfonic acid at 140℃; for 0.5h; | 85% |
With bismuth(lll) trifluoromethanesulfonate In neat (no solvent) at 180℃; for 0.5h; Friedel-Crafts Acylation; Microwave irradiation; chemoselective reaction; | 85% |
Conditions | Yield |
---|---|
With aluminum (III) chloride In chlorobenzene at 90℃; | 97.1% |
With zinc at 50 - 52℃; for 0.0152778h; Friedel-Crafts acylation; microwave irradiation; | 70% |
Conditions | Yield |
---|---|
With 5% CeO2 doped HZSM-5 zeolite In ethanol at 73℃; for 4h; Concentration; Reagent/catalyst; Green chemistry; | 96.58% |
With sulfuric acid at 130℃; |
Conditions | Yield |
---|---|
Stage #1: benzene With polymer-supported phenyliodine(III) diacetate; sulfuric acid In acetic acid at 20℃; for 60h; Substitution; Stage #2: 2,4-Dihydroxybenzaldehyde With sodium carbonate; lithium chloride; palladium dichloride In N,N-dimethyl-formamide at 60 - 70℃; for 4.5h; Substitution; | 67% |
diphenyliodonium bromide
2,4-Dihydroxybenzaldehyde
2,4-dihydroxybenzophenone
Conditions | Yield |
---|---|
With sodium carbonate; lithium chloride; palladium dichloride In N,N-dimethyl-formamide at 60℃; for 4h; Arylation; | 52% |
2,4-diacetoxybenzophenone
A
2,4-dihydroxybenzophenone
Conditions | Yield |
---|---|
With Candida cylindracea lipase In di-isopropyl ether; butan-1-ol at 28 - 30℃; for 40h; | A 50% B 35% |
Conditions | Yield |
---|---|
With boron trifluoride diethyl etherate In benzene for 3h; crossover Friess rearrangement; Heating; | 40% |
Conditions | Yield |
---|---|
With zinc(II) chloride at 120 - 130℃; for 7h; | 35% |
Conditions | Yield |
---|---|
With zinc(II) chloride; trichlorophosphate at 65℃; for 3h; | 30% |
Conditions | Yield |
---|---|
With aluminum tri-bromide; benzene |
Conditions | Yield |
---|---|
With zinc(II) chloride; trichlorophosphate at 130 - 140℃; |
benzoyl chloride
recorcinol
A
2,4-dihydroxybenzophenone
B
resorcinol dibenzoate
Conditions | Yield |
---|---|
With carbon disulfide; aluminium trichloride |
Conditions | Yield |
---|---|
With hydrogenchloride; diethyl ether; zinc(II) chloride und Kochen des entstandenen Ketimidhydrochlorids mit Wasser; | |
Darstellung durch Kondensation und nachfolgende Hydrolyse nach Hoesch; |
N-phenyl-benzimidoyl chloride
recorcinol
A
N-phenyl benzoyl amide
B
2,4-dihydroxybenzophenone
Conditions | Yield |
---|---|
Verseifen des Reaktionsprodkts mit warmer verduennter Salzsaeure; |
Conditions | Yield |
---|---|
at 100℃; und nachfolgendes Erwaermen mit verd.Salzsaeure; |
Conditions | Yield |
---|---|
With zinc(II) chloride; trichlorophosphate at 130 - 140℃; |
Conditions | Yield |
---|---|
With zinc(II) chloride at 140℃; |
2,4-diacetoxybenzophenone
2,4-dihydroxybenzophenone
Conditions | Yield |
---|---|
With water; trifluoroacetic acid at 65℃; for 2h; | 54 % Spectr. |
With water; trifluoroacetic acid at 65℃; Rate constant; |
benzamide
(E)-3-Ureido-but-2-enoic acid ethyl ester
recorcinol
trichlorophosphate
2,4-dihydroxybenzophenone
Conditions | Yield |
---|---|
at 140℃; |
A
2,4-dihydroxybenzophenone
B
9-phenyl-9H-xanthene-3,6-diol
Conditions | Yield |
---|---|
With potassium hydroxide |
Conditions | Yield |
---|---|
at 160℃; |
2,4-dihydroxybenzophenone
Conditions | Yield |
---|---|
With aluminium trichloride at 180℃; |
2,4-dihydroxybenzophenone
Conditions | Yield |
---|---|
With hydrogenchloride |
Conditions | Yield |
---|---|
With C-glycosyltransferase from Mangifera indica In methanol at 40℃; for 12h; pH=6.6; Enzymatic reaction; | 100% |
2,4-dihydroxybenzophenone
allyl bromide
2-hydroxy-4-prop-2-enyloxybenzophenone
Conditions | Yield |
---|---|
With potassium carbonate; potassium iodide In N,N-dimethyl-formamide at 60℃; for 6h; | 98% |
With potassium carbonate; potassium iodide In acetone for 4h; Heating; |
2,4-dihydroxybenzophenone
3-(tosyloxy)benzyl alcohol
Conditions | Yield |
---|---|
With potassium carbonate In acetone at 60℃; for 24h; | 98% |
3-(1H-imidazol-1-yl)propan-1-amine
2,4-dihydroxybenzophenone
C19H19N3O2
Conditions | Yield |
---|---|
In toluene for 17.5h; Inert atmosphere; Reflux; | 97.7% |
Conditions | Yield |
---|---|
Stage #1: formaldehyd; chitosan hydrochloride SC12181, DDA 80%, Mw 9 kDa, Mn 2 kDa In water at 65℃; for 1h; Stage #2: 2.4-dihydroxybenzophenone In methanol; water at 65℃; for 24h; | 96% |
2,4-dihydroxybenzophenone
nickel(II) acetate tetrahydrate
Trimethylenediamine
Conditions | Yield |
---|---|
Stage #1: 2.4-dihydroxybenzophenone; Trimethylenediamine In methanol for 24h; Reflux; Stage #2: nickel(II) acetate tetrahydrate In methanol for 48h; Reflux; | 96% |
Conditions | Yield |
---|---|
In methanol for 16h; Reflux; | 96% |
Conditions | Yield |
---|---|
With sodium carbonate; potassium carbonate at 98 - 120℃; Temperature; | 95.3% |
With sodium carbonate In N,N-dimethyl-formamide at 70℃; for 8h; Temperature; Reagent/catalyst; Solvent; | 95% |
Conditions | Yield |
---|---|
With triethylamine In tetrahydrofuran 0 deg C to room temp., 0.5 to 1 h; | 95% |
2,4-dihydroxybenzophenone
11-bromoundecanoic acid ethyl ester
ethyl 11-(4-benzoyl-3-hydroxyphenoxy)undecanoate
Conditions | Yield |
---|---|
With potassium carbonate In acetone at 60℃; for 48h; | 95% |
2,4-dihydroxybenzophenone
tert-butylisonitrile
Di-tert-butyl acetylenedicarboxylate
di-tert-butyl 6-benzoyl-2-(tert-butylamino)-5-hydroxy-4H-chromene-3,4-dicarboxylate
Conditions | Yield |
---|---|
In dichloromethane at 20℃; for 24.1667h; regioselective reaction; | 95% |
Conditions | Yield |
---|---|
Stage #1: formaldehyd; chitosan hydrochloride SC12181, DDA 80%, Mw 9 kDa, Mn 2 kDa In water at 65℃; for 1h; Stage #2: 2.4-dihydroxybenzophenone In methanol; water at 65℃; for 24h; | 95% |
Conditions | Yield |
---|---|
With sodium carbonate at 160 - 170℃; for 10h; | 94% |
With tetrabutylammomium bromide; sodium carbonate In methanol at 170 - 175℃; under 22502.3 - 30003 Torr; Temperature; Reagent/catalyst; Pressure; Large scale; | 86.1% |
2,4-dihydroxybenzophenone
nickel(II) acetate tetrahydrate
1,3-Diamino-2-hydroxypropane
Conditions | Yield |
---|---|
Stage #1: 2.4-dihydroxybenzophenone; 1,3-Diamino-2-hydroxypropane In methanol for 12h; Reflux; Stage #2: nickel(II) acetate tetrahydrate In methanol for 12h; Reflux; | 94% |
2,4-dihydroxybenzophenone
nickel(II) acetate tetrahydrate
1,2-diaminopropan
Conditions | Yield |
---|---|
Stage #1: 2.4-dihydroxybenzophenone; 1,2-diaminopropan In methanol for 18h; Reflux; Stage #2: nickel(II) acetate tetrahydrate In methanol for 12h; Reflux; | 94% |
2,4-dihydroxybenzophenone
Cyclohexyl isocyanide
Di-tert-butyl acetylenedicarboxylate
di-tert-butyl 6-benzoyl-2-(cyclohexylamino)-5-hydroxy-4H-chromene-3,4-dicarboxylate
Conditions | Yield |
---|---|
In dichloromethane at 20℃; for 24.1667h; regioselective reaction; | 93% |
Conditions | Yield |
---|---|
In methanol at 65 - 75℃; for 2h; | 91.6% |
Conditions | Yield |
---|---|
With hydrogenchloride In methanol; water at 25℃; for 24h; Mannich reaction; | 91% |
Conditions | Yield |
---|---|
With tetrabutyl-ammonium chloride; sodium carbonate In tert-butyl methyl ether; water; chlorobenzene at 100℃; under 2250.23 Torr; for 2h; Temperature; Solvent; Reagent/catalyst; Pressure; Autoclave; | 91% |
2,4-dihydroxybenzophenone
Conditions | Yield |
---|---|
With pyridine In dichloromethane | 90.5% |
Conditions | Yield |
---|---|
With sulfuric acid In methanol at 50℃; for 0.5h; | 90% |
With hydrogenchloride In tetrahydrofuran; ethanol |
Conditions | Yield |
---|---|
With sodium carbonate; chloro(1,5-cyclooctadiene)iridium(I) dimer In toluene at 100℃; for 3h; | A 2% B 90% |
2,4-dihydroxybenzophenone
Cyclohexyl isocyanide
acetylenedicarboxylic acid diethyl ester
diethyl 6-benzoyl-2-(cyclohexylamino)-5-hydroxy-4H-chromene-3,4-dicarboxylate
Conditions | Yield |
---|---|
In dichloromethane at 20℃; for 24.1667h; regioselective reaction; | 90% |
2,4-dihydroxybenzophenone
2,3-dimethyl-7-[(3-methylbut-2-en-1-yl)oxy]-4-oxo-4H-chromene-8-carbaldehyde
Conditions | Yield |
---|---|
With ethylenediamine diacetic acid; triethylamine In acetonitrile at 80 - 85℃; for 12h; Diels-Alder Cycloaddition; stereoselective reaction; | 90% |
2,4-dihydroxybenzophenone
Conditions | Yield |
---|---|
With ethylenediamine diacetic acid In toluene at 20℃; for 8h; Michael Addition; Inert atmosphere; Reflux; regioselective reaction; | 89% |
1.Introduction of 2,4-Dihydroxybenzophenone
The 2,4-Dihydroxybenzophenone, with its CAS NO 131-56-6, is a kind of White or Light yellow crystalline powder. It has synonyms of 2,4-dihydroxybenzophanene (UV adsorbent);UV absorbers BP-1;UV 0;Sunsafe-BP1 (2,4-Dihydroxy Benzophenone);Methanone, (2,4-dihydroxyphenyl)phenyl-;UV-0 and Methanone,(2,4-dihydroxyphenyl)phenyl-. 2,4-Dihydroxybenzophenone should be stored in a closed system and be kept in a dark place without any light exposure and mainly used in plastics as light stabilizer, can effectively protect the organic glass and clothing, prevent deterioration due to sunlight, but also for intermediates in synthesis of other UV-absorbent .
2.Properties of 2,4-Dihydroxybenzophenone
(1) EINECS: 205-029-4 (2) Mol File: 131-56-6.mol (3)Index of Refraction: 1.647
(4) Molar Refractivity: 59.8 cm3 (5) Molar Volume: 164.4 cm3 (6) Surface Tension: 59.6 dyne/cm
(7) Density: 1.302 g/cm3 (8) Flash Point: 215.3 °C (9) Enthalpy of Vaporization: 68.68 kJ/mol
(10) Boiling Point: 409 °C at 760 mmHg (11) Vapour Pressure: 2.84E-07 mmHg at 25 °C
3.Structure descriptors of 2,4-Dihydroxybenzophenone
SMILES:O=C(c1ccc(O)cc1O)c2ccccc2
Std. InChI:InChI=1S/C13H10O3/c14-10-6-7-11(12(15)8-10)13(16)9-4-2-1-3-5-9/h1-8,14-15H
Std. InChIKey:ZXDDPOHVAMWLBH-UHFFFAOYSA-N
4.Safety information of 2,4-Dihydroxybenzophenone
Hazard Codes: Xi
Risk Statements: 36/37/38
R36/37/38:Irritating to eyes, respiratory system and skin.
Safety Statements 26-37/39
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S37/39:Wear suitable gloves and eye/face protection.
WGK Germany: 2
RTECS: DJ0700000
Hazard Note: Irritant
5.Toxity data of 2,4-Dihydroxybenzophenone
Organism | Test Type | Route | Reported Dose (Normalized Dose) | Effect | Source |
---|---|---|---|---|---|
mouse | LD50 | intraperitoneal | 100mg/kg (100mg/kg) | National Technical Information Service. Vol. AD277-689, | |
mouse | LD50 | intravenous | 85mg/kg (85mg/kg) | British Journal of Pharmacology and Chemotherapy. Vol. 22, Pg. 221, 1964. | |
rat | LD50 | oral | 8600mg/kg (8600mg/kg) | BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY) BEHAVIORAL: FOOD INTAKE (ANIMAL) GASTROINTESTINAL: "HYPERMOTILITY, DIARRHEA" | Roczniki Panstwowego Zakladu Higieny. Vol. 19, Pg. 179, 1968. |
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