5-amino-tetrahydro-2H-pyran-3-ol synthesis
- Product Name:5-amino-tetrahydro-2H-pyran-3-ol
- CAS Number:1403864-10-7
- Molecular formula:C5H11NO2
- Molecular Weight:117.15
265321-06-0
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Yield:1403864-10-7 97.5%
Reaction Conditions:
with sodium tetrahydroborate in methanol at 20; for 3 h;
Steps:
51.3 The third step: 9144A3 synthesis
Compound 9144A2 (7.7 g, 68.1 mmol) was dissolved in methanol (50 mL), and then sodium borohydride (12.9 g, 340.5 mmol) was added.The reaction mixture was stirred at room temperature for 3 hours.It was concentrated under reduced pressure, and the concentrated residue was slurried with 45 mL of dichloromethane, and then filtered.The filtrate was concentrated to obtain a white solid compound 9144A3 (7.8 g, yield 97.5%).
References:
CN111269217,2020,A Location in patent:Paragraph 1048; 1050; 1057-1059
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