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inquiryYinghao Pharm products include: leader molecule, heterocyclic compounds,chiral compounds, photoelectric materials, biochemical reagents etc. For example:benzene, pyrimidine, boricacid,pyridine, pyrazole, imidazole, pyrrole, fluorine and other derivat
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Pentanal, 2,3-dimethyl-Appearance:Off white to slight yellow solid Storage:Store in dry and cool condition Package:25kg or according to cutomer's demand Application:Chemical research/Pharmaceutical intermediates Transportation:By Sea,by Air,By courie
Debyesci is here who supplied several kinds of chemical products to global pharmaceutical, drug discovery, agrochemical and biotechnology industries for four yearsOur key scientific leadership team has gained experience in top research and developmen
Conditions | Yield |
---|---|
With aluminium trichloride In dichloromethane at -30℃; Alkylation; | 33% |
2-sec-butyl-2-methyl-oxirane
2,3-dimethylvaleraldehyde
Conditions | Yield |
---|---|
With perchloric acid In diethyl ether |
3-sec-butyl-3-methyl-oxiranecarboxylic acid ethyl ester
2,3-dimethylvaleraldehyde
Conditions | Yield |
---|---|
(i) NaOH, (ii) H+, (iii) (decarboxylation); Multistep reaction; |
2,2-dimethylpentane-1,3-diol
A
2-methyl-2-pentene
C
2,3-dimethylvaleraldehyde
Conditions | Yield |
---|---|
With sulfuric acid Heating; Further byproducts given; |
1-methoxy-2,3-dimethyl-pentan-2-ol
2,3-dimethylvaleraldehyde
Conditions | Yield |
---|---|
With ion-exchange resin + form> |
2-methyl-2-pentenal
methylmagnesium chloride
A
2,3-dimethylvaleraldehyde
B
3-methyl-pentan-2-one
Conditions | Yield |
---|---|
With copper(I) bromide 1.) THF; 2.) 0 deg C, 1h; Yield given. Multistep reaction. Title compound not separated from byproducts; |
Conditions | Yield |
---|---|
With hydrogen; carbonylhydridetris(triphenylphosphine)rhodium(I) Hydroformylation; |
(E)-2-methylpent-2-enal
A
2,3-dimethylvaleraldehyde
B
(3E)-3-methylhex-3-en-2-ol
Conditions | Yield |
---|---|
With ammonium chloride In tetrahydrofuran; diethyl ether Yield given. Yields of byproduct given; |
2-ethyl-1-butanol
2,3-dimethylvaleraldehyde
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: H+ / Heating 2: H2 / (Ph3P)3Rh(CO)H View Scheme |
3-methyl-1-pentene
carbon monoxide
A
4-methylhexanal
B
2,3-dimethylvaleraldehyde
Conditions | Yield |
---|---|
With dodecacarbonyltetrarhodium(0); hydrogen In benzene at 20℃; under 76005.1 Torr; Autoclave; regioselective reaction; |
3-sec-butyl-3-methyl-oxirane-2-carboxylic acid methyl ester
2,3-dimethylvaleraldehyde
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: sodium hydroxide / water / 80 - 90 °C / pH 2 2: 80 - 90 °C View Scheme | |
Stage #1: 3-sec-butyl-3-methyl-oxirane-2-carboxylic acid methyl ester With sodium hydroxide In water Stage #2: With phosphoric acid In water at 80 - 90℃; pH=2; | 466 g |
3-methylpent-3-en-2-one
2,3-dimethylvaleraldehyde
Conditions | Yield |
---|---|
Multi-step reaction with 4 steps 1: palladium on activated charcoal; hydrogen / 3.5 h / 85 °C / 7500.75 Torr / Large scale 2: sodium methylate / methanol; toluene / 5 h / 0 - 20 °C / Large scale 3: sodium hydroxide / water / 80 - 90 °C / pH 2 4: 80 - 90 °C View Scheme | |
Multi-step reaction with 3 steps 1.1: palladium on activated charcoal; hydrogen / 0.85 °C / 75.01 Torr / Large scale 2.1: sodium methylate / methanol; toluene / 3 h / 0 - 20 °C / Large scale 3.1: sodium hydroxide / water 3.2: 80 - 90 °C / pH 2 View Scheme |
3-sec-butyl-3-methyloxirane-2-carboxylic acid
2,3-dimethylvaleraldehyde
Conditions | Yield |
---|---|
at 80 - 90℃; |
3-methyl-pentan-2-one
2,3-dimethylvaleraldehyde
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: sodium methylate / methanol; toluene / 5 h / 0 - 20 °C / Large scale 2: sodium hydroxide / water / 80 - 90 °C / pH 2 3: 80 - 90 °C View Scheme | |
Multi-step reaction with 2 steps 1.1: sodium methylate / methanol; toluene / 3 h / 0 - 20 °C / Large scale 2.1: sodium hydroxide / water 2.2: 80 - 90 °C / pH 2 View Scheme |
2,3-dimethylvaleraldehyde
malonic acid dimethyl ester
dimethyl 2,3-dimethylpentylidinemalonate
Conditions | Yield |
---|---|
With piperdinium acetate In benzene Condensation; Heating; | 70% |
triphenyl phosphite
O-benzyl carbamate
2,3-dimethylvaleraldehyde
isobutyraldehyde
Conditions | Yield |
---|---|
With acetic acid at 80℃; for 1h; Condensation; | 33% |
methanol
chloroform
2,3-dimethylvaleraldehyde
2-Methoxy-3,4-dimethyl-hexanoic acid
Conditions | Yield |
---|---|
(i) NaH, THF, (ii) /BRN= 1098229/, NaOH; Multistep reaction; |
formaldehyd
2,3-dimethylvaleraldehyde
2-sec-butyl-2-methyl-propane-1,3-diol
Conditions | Yield |
---|---|
With sodium carbonate | |
With potassium hydroxide In ethanol hydroxymethylation; | |
With water; sodium hydroxide at 80℃; | 277 g |
With sodium hydroxide In water at 0.8℃; | 277 g |
nitromethane
2,3-dimethylvaleraldehyde
3,4-dimethyl-1-nitro-hexan-2-ol
Conditions | Yield |
---|---|
With sodium hydroxide In methanol |
2,3-dimethylvaleraldehyde
2-iodo-2,3-dimethyl-pentanal
Conditions | Yield |
---|---|
(i) KH, (ii) I2; Multistep reaction; |
2,3-dimethylvaleraldehyde
diphenyldisulfane
2-Phenylthio-2,3-dimethylvaleraldehyd
Conditions | Yield |
---|---|
(i) KH, (ii) /BRN= 639794/; Multistep reaction; |
2,3-dimethylvaleraldehyde
Methylenetriphenylphosphorane
3,4-Dimethyl-1-hexene
trimethylsilyl cyanide
2,3-dimethylvaleraldehyde
Conditions | Yield |
---|---|
With zinc(II) iodide |
2,3-dimethylvaleraldehyde
Isopropoxy-(1-methyl-but-3-ynyloxy)-diphenyl-silane
(2R,7S)-5-Chloro-2,7-dimethyl-2-propyl-2,3,6,7-tetrahydro-oxepine
Conditions | Yield |
---|---|
With titanium tetrachloride 1.) CH2Cl2, -78 deg C, 10 min, 2a.) -78 deg C, 1 h, 2b.) -40 deg C, 1.5 h; Yield given. Multistep reaction; |
2,3-dimethylvaleraldehyde
Bis-(1-methyl-but-3-ynyloxy)-diphenyl-silane
(2R,7S)-5-Chloro-2,7-dimethyl-2-propyl-2,3,6,7-tetrahydro-oxepine
Conditions | Yield |
---|---|
With titanium tetrachloride 1.) CH2Cl2, -78 deg C, 10 min, 2a.) -78 deg C, 0.5 h, 2b.) -35 deg C, 1 h; Yield given. Multistep reaction. Yields of byproduct given; |
2,3-dimethylvaleraldehyde
3-Methyl-2-methylene-pentanoic acid
Conditions | Yield |
---|---|
Yield given. Multistep reaction; |
trifluoromethylsulfonic anhydride
2,3-dimethylvaleraldehyde
Conditions | Yield |
---|---|
In dichloromethane at 0℃; Yield given; |
2,3-dimethylvaleraldehyde
A
acetaldehyde
B
3-methyl-pentan-2-one
C
butanone
Conditions | Yield |
---|---|
With hydroxyl; oxygen at 24.85℃; under 740 Torr; Kinetics; |
2,3-dimethylvaleraldehyde
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: KOH / ethanol 2: H+ View Scheme |
2,3-dimethylvaleraldehyde
(+/-)-2,8-dimethyl-2-(1-methylpropyl)-2,3-dihydro-4H-furo[2,3-d]pyrido[1,2-a]pyrimidin-4-one
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: 70 percent / piperidinium acetate / benzene / Heating 2: 40 percent / ethanol / 175 °C 3: 95 percent / CF3CO2H / CH2Cl2 / 20 °C View Scheme |
2,3-dimethylvaleraldehyde
2-hydroxy-8-methyl-3-(2,3-dimethylpent-1-enyl)-4H-pyrido[1,2-a]pyrimidin-4-one
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: 70 percent / piperidinium acetate / benzene / Heating 2: 40 percent / ethanol / 175 °C View Scheme |
2,3-dimethylvaleraldehyde
Conditions | Yield |
---|---|
Multi-step reaction with 4 steps 1: 70 percent / piperidinium acetate / benzene / Heating 2: 40 percent / ethanol / 175 °C 3: 95 percent / CF3CO2H / CH2Cl2 / 20 °C 4: 50 percent / Et3N; TFA / CH2Cl2 / Electrolysis View Scheme |
2,3-dimethylvaleraldehyde
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: CH2Cl2 / 0 °C 2: boron trifluoride etherate / tetrahydrofuran / 12 h / -78 °C View Scheme |
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