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1-bromo-4-methanesulfonylbutane synthesis
- Product Name:1-bromo-4-methanesulfonylbutane
- CAS Number:18225-56-4
- Molecular formula:C5H11BrO2S
- Molecular Weight:215.11
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Yield:18225-56-4 80%
Reaction Conditions:
with phosphorus tribromide in dichloromethane at 25; for 15 h;
Steps:
1.9.3
The intermediate 9-b (98 g, 645 mmol) was dissolved in CH2C12 (1100 mL). The mixture was cooled to 0-5°C. PBr3 (64 mL, 674 mmol) was added dropwise at 0-5°C. After addition, the mixture was allowed to warm to 25°C and stirred for 15 hours. The mixture was poured into ice-water. The separated organic layer was washed with brine (2 X 500 mL), dried over Na2S04, filtered and evaporated under vacuum. The product 9-c was obtained (84.5 g, 80%).
References:
WO2012/80449,2012,A1 Location in patent:Page/Page column 22
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20582-85-8
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