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CAS No.: | 140200-76-6 |
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Name: | 1,5-DIBROMO-PENTAN-3-ONE |
Article Data: | 6 |
Molecular Structure: | |
Formula: | C5H8 Br2 O |
Molecular Weight: | 243.926 |
Synonyms: | 1,5-DIBROMO-PENTAN-3-ONE |
Density: | 1.813g/cm3 |
Melting Point: | 89.7-90.5 °C |
Boiling Point: | 259.1°C at 760 mmHg |
Flash Point: | 101.269°C |
PSA: | 17.07000 |
LogP: | 2.12550 |
1-(2-bromoethyl)cyclopropan-1-ol
α,α'-dibromopentan-3-one
Conditions | Yield |
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With N-Bromosuccinimide In tetrachloromethane at 20℃; for 2h; | 81% |
With N-Bromosuccinimide In tetrachloromethane for 14h; Reflux; | 77% |
With N-Bromosuccinimide In tetrachloromethane at 0 - 25℃; for 16h; | 68% |
α,α'-dibromopentan-3-one
divinylketone
Conditions | Yield |
---|---|
With triethylamine In dichloromethane for 19h; | 93% |
With sodium carbonate under 65 - 80 Torr; Heating; | 78% |
ethylene glycol
α,α'-dibromopentan-3-one
1,5-Dibromopentan-3-one ethylene ketal
Conditions | Yield |
---|---|
With toluene-4-sulfonic acid In benzene for 24h; Heating; | 86% |
With pyridinium p-toluenesulfonate; orthoformic acid triethyl ester at 20℃; for 18h; | 32% |
(S)-2-amino-1-(phenanthridin-5(6H)-yl)propan-1-one
α,α'-dibromopentan-3-one
(S)-1-(1-oxo-1-(phenanthridin-5(6H)-yl)propan-2-yl)piperidin-4-one
Conditions | Yield |
---|---|
With sodium hydrogencarbonate In methanol at 60℃; for 0.5h; Reflux; | 75% |
α,α'-dibromopentan-3-one
Tetrahydrothiopyran-4-one
Conditions | Yield |
---|---|
With sodium sulfide In methanol for 1h; Heating; | 71% |
α,α'-dibromopentan-3-one
Conditions | Yield |
---|---|
With methanol; sodium tetrahydroborate at 0 - 25℃; for 3h; | 67% |
α,α'-dibromopentan-3-one
Conditions | Yield |
---|---|
With potassium carbonate In acetonitrile at 75℃; for 16h; | 56% |
α,α'-dibromopentan-3-one
2,2-Dimethyl-1,3-propanediol
A
2,2-bis(2-bromoethyl)-5,5-dimethyl-1,3-dioxane
B
2-(2-bromoethyl)-5,5-dimethyl-2-ethenyl-1,3-dioxane
Conditions | Yield |
---|---|
With toluene-4-sulfonic acid In benzene for 60h; Heating; | A 22% B 50% |
α,α'-dibromopentan-3-one
furfuryl alcohol α-(tributylstannyl)methyl ether
Conditions | Yield |
---|---|
With methyllithium; silver; L-Selectride; zinc 2.) THF, 195 K; 3.) THF, 195 K to 273 K, 2 h; Yield given. Multistep reaction; |
α,α'-dibromopentan-3-one
2-(2-bromoethyl)-5,5-dimethyl-2-ethenyl-1,3-dioxane
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: 22 percent / TsOH*H2O / benzene / 60 h / Heating 2: 58 percent / TsOH*H2O / benzene / 60 h / Heating View Scheme |