Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Water | HCID 962 | — |
| Reactant | HCID 1714278 | HCID 1714278 | — |
| Reactant | Sodium borohydride | HCID 4311764 | — |
| Solvent | Methanol | HCID 887 | — |
| Product | HCID 24754683 | HCID 24754683 | 97% |
Reaction Steps
To a cooled solution of 3-[(p-Toluenesulfonyl)oxy]-4-methoxybenzaldehyde 21 (9.0 g, 29 mmol) in methanol (25 mL) was added sodium borohydride (0.55 g, 14.5 mmol) in methanol (2.5 mL) over a period of 5-10 min maintaining the temperature around 15-20° C. The reaction mixture was maintained at that temperature for further 30 min and checked TLC for completion of the reaction. Water was added to the reaction mixture and the solid formed was filtered, washed with water and dried to afford 22. Yield: 97%; white solid mp 88-90° C. 1H NMR: δ 2.41 (s, 3H, CH3), 3.59 (s, 3H, OCH3), 4.57 (s, 2H, CH2), 6.80-7.79 (m, 7H, Ar—H). Anal. Calcd for C15H16O5S: C, 58.43, H, 5.23. Found: C, 58.49, H, 5.19.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08735620B2 |
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| Source dataset | uspto-grants-2014_05 |
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| ORD ID | ord-ea5739a6eb5143bfb11482522707f08d |
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| Source note | uspto-grants-2014_05 |
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