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CAS No.: | 62563-07-9 |
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Name: | 2-(3-BroMopropyl)-1,3-dioxolane |
Article Data: | 12 |
Molecular Structure: | |
Formula: | C6H11BrO2 |
Molecular Weight: | 195.056 |
Synonyms: | 2-(3-Bromopropyl)-1,3-dioxolane; |
Density: | 1.44 |
Boiling Point: | 88°C/10mmHg(lit.) |
PSA: | 18.46000 |
LogP: | 1.53440 |
Conditions | Yield |
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Stage #1: Ethyl 4-bromobutyrate With diisobutylaluminium hydride In dichloromethane at -78℃; Stage #2: ethylene glycol With toluene-4-sulfonic acid In toluene at 90℃; | 95% |
Stage #1: Ethyl 4-bromobutyrate With diisobutylaluminium hydride In hexane; dichloromethane at -70 - -65℃; for 1h; Stage #2: ethylene glycol With toluene-4-sulfonic acid In benzene for 3h; Heating; | 88% |
With diisobutylaluminium hydride; toluene-4-sulfonic acid In dichloromethane; benzene | 85% |
4-bromoethylbutanoate
2-(3-bromopropyl)-1,3-dioxolane
Conditions | Yield |
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Stage #1: Ethyl 4-bromobutyrate With diisobutylaluminium hydride In dichloromethane at -78℃; Stage #2: With toluene-4-sulfonic acid; ethylene glycol In benzine; dichloromethane at 90℃; | 95% |
Conditions | Yield |
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With toluene-4-sulfonic acid In benzene for 2.75h; Heating; | 90.5% |
With toluene-4-sulfonic acid In toluene Heating; | 90% |
With toluene-4-sulfonic acid In toluene for 1.5h; Reflux; | 73% |
2-(3-bromopropyl)-1,3-dioxolane
(2R,4R)-N-(2,4,6-trimethoxybenzyl)-2-methyl-4-phenyl-1,3-oxazolidine
(R)-2-[((R)-4-[1,3]Dioxolan-2-yl-1-methyl-butyl)-(2,4,6-trimethoxy-benzyl)-amino]-2-phenyl-ethanol
Conditions | Yield |
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With magnesium In tetrahydrofuran at 0℃; for 72h; | 96.4% |
2-(3-bromopropyl)-1,3-dioxolane
(2R,4R)-N-(2,4,6-trimethoxybenzyl)-2,4-diphenyl-1,3-oxazolidine
(1S,1'R)-1-[N-(2,4,6-trimethoxybenzyl)-N-2'-hydroxy-1'-phenylethylamino]-5,5-ethylenedioxy-1-phenylpentane
Conditions | Yield |
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With magnesium In tetrahydrofuran at 0℃; for 72h; | 96.4% |
2-(3-bromopropyl)-1,3-dioxolane
phosphoric acid diethyl ester (R)-2-iodo-4,4-dimethylcyclohex-2-enyl ester
(R)-2-(3-(2-iodo-6,6-dimethylcyclohex-2-en-1-yl)propyl)-1,3-dioxolane
Conditions | Yield |
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Stage #1: 2-(3-bromopropyl)-1,3-dioxolane With magnesium In tetrahydrofuran at 70℃; Inert atmosphere; Stage #2: With copper(l) cyanide In tetrahydrofuran at -40 - 0℃; Inert atmosphere; Stage #3: phosphoric acid diethyl ester (R)-2-iodo-4,4-dimethylcyclohex-2-enyl ester In tetrahydrofuran at -40℃; Inert atmosphere; | 96% |
2-(3-bromopropyl)-1,3-dioxolane
(2R,4R)-N-(2,4,6-trimethoxybenzyl)-2-(2,2-ethylenedioxy-2-phenylethyl)-4-phenyl-1,3-oxazolidine
(R)-2-[(S)-4-[1,3]Dioxolan-2-yl-1-(2-phenyl-[1,3]dioxolan-2-ylmethyl)-butylamino]-2-phenyl-ethanol
Conditions | Yield |
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With magnesium In tetrahydrofuran at 0℃; for 48h; | 95.8% |
cyclohexenone
2-(3-bromopropyl)-1,3-dioxolane
3-<3-(1,3-dioxolan-2-yl)propyl>cyclohexanone
Conditions | Yield |
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Stage #1: 2-(3-bromopropyl)-1,3-dioxolane With magnesium In tetrahydrofuran at 22 - 24℃; for 1h; Stage #2: cyclohexenone With copper(l) iodide In tetrahydrofuran at -78 - 0℃; | 92% |
Stage #1: 2-(3-bromopropyl)-1,3-dioxolane With magnesium In tetrahydrofuran at 20℃; for 1.5h; Stage #2: With copper(l) iodide In tetrahydrofuran at -30℃; for 0.5h; Stage #3: cyclohexenone In tetrahydrofuran at -78 - 20℃; | 78% |
Stage #1: 2-(3-bromopropyl)-1,3-dioxolane With magnesium In tetrahydrofuran at 20℃; for 1.5h; Stage #2: With copper(l) iodide In tetrahydrofuran at -30℃; for 0.5h; Stage #3: cyclohexenone In tetrahydrofuran at -78 - 20℃; | 78% |
Conditions | Yield |
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Stage #1: 5-ethoxy-pyrrolidin-2-one With n-butyllithium In tetrahydrofuran; hexane at -78℃; Stage #2: 2-(3-bromopropyl)-1,3-dioxolane In tetrahydrofuran; hexane; dimethyl sulfoxide at -78 - 20℃; | 92% |
2-(3-bromopropyl)-1,3-dioxolane
Conditions | Yield |
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Stage #1: (S)-4-(3-iodophenyl)oxazolidin-2-one With sodium hydride In N,N-dimethyl-formamide; mineral oil at 0℃; for 0.5h; Inert atmosphere; Stage #2: 2-(3-bromopropyl)-1,3-dioxolane In N,N-dimethyl-formamide; mineral oil at 0 - 20℃; for 2h; Inert atmosphere; | 92% |