5-Bromo-1-benzofuran synthesis
- Product Name:5-Bromo-1-benzofuran
- CAS Number:23145-07-5
- Molecular formula:C8H5BrO
- Molecular Weight:197.03
112598-18-2
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23145-07-5
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Yield:23145-07-5 85%
Reaction Conditions:
with PPA in benzene for 4 h;Heating / reflux;
Steps:
34.4.B Step B
To a solution of the product from Step A (8.4g) in benzene (50ML) was added POLYPHOSPHORIC acid (10G). The mixture was heated at reflux for 4 hrs. The reaction was cooled to 0°C and poured into ice water (80ML) and extracted with ether. The ether layer was washed with saturated sodium bicarbonate and brine, dried with MGS04, filtered and concentrated in vacuo to give 4.9g of crude product (85%).
References:
PHARMACOPEIA, INC. WO2004/33440, 2004, A1 Location in patent:Page 239-240
129969-69-3
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23145-07-5
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24589-89-7
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108-24-7
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$14.00/250ML
23145-07-5
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204452-94-8
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128868-60-0
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66826-78-6
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23145-07-5
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