Conditions | Yield |
---|---|
With triethylamine; magnesium chloride In acetonitrile for 3h; Heating; | 98% |
With triethylamine; magnesium chloride In acetonitrile for 3h; Reflux; | 98% |
With triethylamine; magnesium chloride In acetonitrile for 8h; Reflux; | 96% |
para-tert-butylphenol
hexamethylenetetramine
2-hydroxy-5-t-butylbenzaldehyde
Conditions | Yield |
---|---|
With trifluoroacetic acid at 80℃; for 24h; Inert atmosphere; | 61.06% |
Stage #1: para-tert-butylphenol; hexamethylenetetramine With trifluoroacetic acid at 120℃; for 0.5h; Microwave irradiation; Stage #2: With water; potassium carbonate | 46% |
With trifluoroacetic acid for 1.5h; Heating; | 29% |
With acetic acid | |
With boric acid; glycerol |
Conditions | Yield |
---|---|
With sodium hydroxide In water for 8h; Inert atmosphere; Reflux; | 42.5% |
With sodium hydroxide In methanol; water at 65℃; for 2h; | 27.3% |
With sodium hydroxide In methanol; water at 65 - 70℃; for 3h; | 25% |
2-aminomethyl-4-tert-butyl-phenol
2-hydroxy-5-t-butylbenzaldehyde
Conditions | Yield |
---|---|
With hexamethylenetetramine In acetic acid for 4h; Heating; | 17% |
Conditions | Yield |
---|---|
Stage #1: para-tert-butylphenol With magnesium methanolate In methanol; toluene for 1h; Heating; Stage #2: (CH2O)x In toluene at 110℃; for 3h; Stage #3: With sulfuric acid In toluene at 60℃; for 1.5h; |
Conditions | Yield |
---|---|
In methanol; toluene for 3h; Heating; |
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: zinc chloride / 180 °C 2: NaOH; water View Scheme |
Conditions | Yield |
---|---|
With chloroform; potassium hydroxide In water at 60℃; for 15h; Reimer-Tiemann Phenol Formylation; |
Conditions | Yield |
---|---|
With triethylamine; magnesium chloride In tetrahydrofuran for 5h; Inert atmosphere; Reflux; |
2-hydroxy-5-t-butylbenzaldehyde
tert-butyldimethylsilyl chloride
5-(tert-butyl)-2-((tert-butyldimethylsilyl)oxy)benzaldehyde
Conditions | Yield |
---|---|
With 1H-imidazole In N,N-dimethyl-formamide for 15h; | 100% |
With 1H-imidazole In dichloromethane at 0℃; Sealed tube; | |
With 1H-imidazole In dichloromethane at 0℃; Sealed tube; | |
With dmap; triethylamine In dichloromethane at 20℃; for 24h; Inert atmosphere; | |
With 1H-imidazole In N,N-dimethyl-formamide |
2-hydroxy-5-t-butylbenzaldehyde
5-(tert-butyl)-2-hydroxybenzaldehyde oxime
Conditions | Yield |
---|---|
With pyridine; hydroxylamine hydrochloride In ethanol at 60℃; for 3h; | 100% |
With hydroxylamine hydrochloride; sodium acetate In ethanol; water for 3h; Reflux; | 37% |
With hydroxylamine hydrochloride; sodium hydrogencarbonate In ethanol; water for 4h; Reflux; |
2-hydroxy-5-t-butylbenzaldehyde
5-tert-butyl-3-[(dihexylamino)methyl]-2-hydroxybenzaldehyde
Conditions | Yield |
---|---|
In acetonitrile for 90h; Reflux; Inert atmosphere; | 99.1% |
In acetonitrile for 72h; Heating; |
2-hydroxy-5-t-butylbenzaldehyde
3-nitro-5-tert-butyl-2-hydroxybenzaldehyde
Conditions | Yield |
---|---|
With (NO)+18-crown-6-H(NO3)2 In ethyl acetate at 20℃; for 5h; | 99% |
Stage #1: 2-hydroxy-5-t-butylbenzaldehyde With nitronium tetrafluoborate In acetonitrile at -30 - -15℃; for 1h; Stage #2: With sodium hydrogencarbonate In water; ethyl acetate | 94% |
With nitric acid In acetic acid at 20℃; for 2h; | 61% |
formaldehyd
2-hydroxy-5-t-butylbenzaldehyde
3-(bromomethyl)-5-(tert-butyl)-2-hydroxybenzaldehyde
Conditions | Yield |
---|---|
With sulfuric acid; hydrogen bromide at 70℃; for 96h; | 99% |
With sulfuric acid; water; hydrogen bromide at 70℃; for 20h; | 98% |
With sulfuric acid; hydrogen bromide In water at 70℃; for 24h; | 98% |
Conditions | Yield |
---|---|
With hydrogenchloride; sulfuric acid at 70℃; for 20h; Inert atmosphere; | 99% |
With hydrogenchloride; sulfuric acid In water at 70℃; for 120h; Inert atmosphere; | 96% |
With hydrogenchloride; sulfuric acid; water at 70℃; for 45h; | 93% |
2-hydroxy-5-t-butylbenzaldehyde
N,N-dimethyl-formamide
dimethylcarbamic acid 2-formyl-4-tert-butylphenyl ester
Conditions | Yield |
---|---|
With tert.-butylhydroperoxide; copper(l) chloride at 80℃; for 0.25h; | 99% |
Conditions | Yield |
---|---|
In tetrahydrofuran at -78 - 20℃; for 0.5h; Inert atmosphere; | 99% |
2-hydroxy-5-t-butylbenzaldehyde
1,4-bis(bromomethyl)-2,3,5,6-tetramethylbenzene
Conditions | Yield |
---|---|
With potassium carbonate In acetone for 10h; Reflux; | 99% |
With potassium carbonate In acetone Inert atmosphere; | 99% |
Conditions | Yield |
---|---|
With toluene-4-sulfonic acid In toluene for 24h; Reflux; | 98.6% |
2-hydroxy-5-t-butylbenzaldehyde
chloromethyl methyl ether
5-tert-butyl-2-(methoxymethoxy)benzaldehyde
Conditions | Yield |
---|---|
With N-ethyl-N,N-diisopropylamine In dichloromethane at 20℃; for 2h; | 98% |
With sodium hydroxide; Aliquat 336 In dichloromethane; water at -10℃; for 0.5h; | 88% |
Stage #1: 2-hydroxy-5-t-butylbenzaldehyde With sodium hydride In tetrahydrofuran; mineral oil for 0.166667h; Stage #2: chloromethyl methyl ether In tetrahydrofuran; toluene; mineral oil at 0 - 20℃; for 6h; |
Conditions | Yield |
---|---|
With sodium tetrahydroborate In methanol at 20℃; Inert atmosphere; | 98% |
With lithium aluminium tetrahydride In tetrahydrofuran at 20℃; for 3h; Inert atmosphere; Schlenk technique; Reflux; | 95% |
Stage #1: 2-hydroxy-5-t-butylbenzaldehyde With 1,3-dimethyl-3,4,5,6-tetrahydro-2(1H)-pyrimidinone; C6H13ClO2Si; triethylamine In dichloromethane at 0 - 20℃; Inert atmosphere; Stage #2: With tetrabutyl ammonium fluoride In tetrahydrofuran; dichloromethane Inert atmosphere; | 77% |
With sodium tetrahydroborate In methanol at 0 - 20℃; for 16h; | 67.6% |
With methanol; sodium tetrahydroborate at 20℃; for 1h; Inert atmosphere; |
Conditions | Yield |
---|---|
for 0.1h; microwave irradiation; | 98% |
(2-aminomethylpyridine)
2-hydroxy-5-t-butylbenzaldehyde
4-tert-butyl-2-{[(pyridin-2-ylmethyl)amino]methyl}phenol
Conditions | Yield |
---|---|
With sodium tetrahydroborate In methanol Inert atmosphere; | 98% |
Stage #1: 2-(Aminomethyl)pyridine; 2-hydroxy-5-t-butylbenzaldehyde In ethanol at 60℃; for 10h; Stage #2: With sodium tetrahydroborate In methanol; ethanol for 3h; | 64% |
tetrahydrofuran
2-hydroxy-5-t-butylbenzaldehyde
5-tert-butyl-2-(tetrahydrofuran-2-yloxy)benzaldehyde
Conditions | Yield |
---|---|
With tert.-butylhydroperoxide; copper(l) chloride In water at 100℃; | 98% |
With tert.-butylhydroperoxide; diiron nonacarbonyl In decane at 110℃; chemoselective reaction; | 72% |
Conditions | Yield |
---|---|
for 0.116667h; microwave irradiation; | 97% |
Conditions | Yield |
---|---|
With potassium carbonate In acetone for 10h; Reflux; Inert atmosphere; | 97% |
2-hydroxy-5-t-butylbenzaldehyde
dimethyl 2,2’-diamino-[1,1’-biphenyl]-4,4’-dicarboxylate
Conditions | Yield |
---|---|
With formic acid In ethanol at 20℃; for 48h; | 97% |
Conditions | Yield |
---|---|
In ethanol for 1.5h; Reflux; | 96.1% |
Conditions | Yield |
---|---|
for 0.116667h; microwave irradiation; | 96% |
Conditions | Yield |
---|---|
for 0.1h; microwave irradiation; | 96% |
2-hydroxy-5-t-butylbenzaldehyde
benzyl bromide
2-(benzyloxy)-5-tert-butylbenzaldehyde
Conditions | Yield |
---|---|
With potassium carbonate In N,N-dimethyl-formamide at 40℃; for 5h; | 96% |
With potassium carbonate In N,N-dimethyl-formamide | |
With potassium carbonate In acetone at 20℃; for 8h; Schlenk technique; Glovebox; |
2-hydroxy-5-t-butylbenzaldehyde
methyl iodide
5-tert-butyl-2-methoxybenzaldehyde
Conditions | Yield |
---|---|
With potassium carbonate In N,N-dimethyl-formamide at 20℃; for 20h; | 96% |
With potassium carbonate In N,N-dimethyl-formamide at 20℃; for 20h; Inert atmosphere; | 94% |
In acetonitrile at 20℃; | 94% |
With potassium carbonate In N,N-dimethyl-formamide at 23℃; for 13h; Inert atmosphere; |
2-hydroxy-5-t-butylbenzaldehyde
(2S)-3-exo-aminoisoborneol
Conditions | Yield |
---|---|
With sodium sulfate In methanol; dichloromethane for 12h; Inert atmosphere; Reflux; | 96% |
(1S,2R)-2-Amino-1,2-diphenylethanol
2-hydroxy-5-t-butylbenzaldehyde
(1S,2R)-tBu(OH)(C6H3)CHN(CHPh)2OH
Conditions | Yield |
---|---|
With sodium sulfate In methanol at 20℃; for 15h; | 96% |
Conditions | Yield |
---|---|
Stage #1: 2-hydroxy-5-t-butylbenzaldehyde; C12H16N2 In chloroform at -40℃; for 8h; Molecular sieve; Stage #2: trifluoroacetic anhydride In chloroform at -40℃; Molecular sieve; | 96% |
2-hydroxy-5-t-butylbenzaldehyde
Conditions | Yield |
---|---|
Stage #1: 2-hydroxy-5-t-butylbenzaldehyde; 1,5,9-triamino-2,3,6,7,10,11-hexabutoxybenzophenanthrene With 1-methyl-pyrrolidin-2-one; trifluorormethanesulfonic acid at 120℃; for 12h; Pictet-Spengler Synthesis; Stage #2: With potassium carbonate at 120℃; for 12h; | 96% |
2-hydroxy-5-t-butylbenzaldehyde
3-bromo-5-tert-butyl-2-hydroxy-benzaldehyde
Conditions | Yield |
---|---|
With bromine; sodium acetate; acetic acid at 50℃; for 12h; | 95% |
With bromine; sodium acetate In acetic acid at 50℃; for 12h; | 95% |
With bromine; acetic acid at 50℃; for 18h; | 93% |
2-hydroxy-5-t-butylbenzaldehyde
4-tert-Butyl-2-(1-hydroxy-2-methyl-propyl)-phenol
Conditions | Yield |
---|---|
In diethyl ether for 2h; Ambient temperature; | 95% |
The 5-tert-Butylsalicylaldehyde with cas registry number of 2725-53-3 is a kind of Aromatic compounds. Both its systematic name and IUPAC name are the same which is called 5-tert-butyl-2-hydroxybenzaldehyde. This chemical has irritation. Therefore, avoid contact with skin and eyes. And do not breathe vapour.
The physical properties about this chemical are: (1)ACD/LogP: 3.44; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): 3.443; (4)ACD/LogD (pH 7.4): 3.402; (5)ACD/BCF (pH 5.5): 243.676; (6)ACD/BCF (pH 7.4): 221.363; (7)ACD/KOC (pH 5.5): 1777.984; (8)ACD/KOC (pH 7.4): 1615.178; (9)#H bond acceptors: 2#H bond donors: 1; (10)#Freely Rotating Bonds: 3; (11)Index of Refraction: 1.554; (12)Molar Refractivity: 53.275 cm3; (13)Molar Volume: 166.217 cm3; (14)Surface Tension: 39.003 dyne/cm; (15)Density: 1.072 g/cm3; (16)Flash Point: 103.964 °C; (17)Enthalpy of Vaporization: 50.918 kJ/mol; (18)Boiling Point: 252.054 °C at 760 mmHg; (19)Vapour Pressure: 0.012 mmHg at 25°C ; (20)Refractive index: n20/D 1.539(lit.).
Preparation of 5-tert-Butylsalicylaldehyde: it can be made by reaction of formaldehyde with 4-tert-butyl-phenol. The reaction will need reagents triethylamine, anhyd. MgCl2 and solvent acetonitrile at the condition of heating. The reaction time is 3 hours with 98% yield.
Uses of 5-tert-Butylsalicylaldehyde: it react with 2,2-dimethoxy-propane to produce 6-tert-butyl-2,4-dimethoxy-2-methyl-chroman. The reaction is a type of Condensation which needs reagent I2 and solvent CH2Cl2 with reaction time of 0.5 hour. The yield is about 83%.
You can still convert the following datas into molecular structure:
(1)SMILES: CC(C)(C)c1ccc(c(c1)C=O)O;
(2)InChI: InChI=1/C11H14O2/c1-11(2,3)9-4-5-10(13)8(6-9)7-12/h4-7,13H,1-3H3;
(3)InChIKey: ZVCQQLGWGRTXGC-UHFFFAOYAF
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