Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Benzaldehyde | HCID 240 | — |
| Reactant | p-Toluenesulfonic acid monohydrate | HCID 521998 | — |
| Reactant | HCID 178524980 | HCID 178524980 | — |
| Solvent | Toluene | HCID 1140 | — |
| Product | HCID 11032680 | HCID 11032680 | 40% |
Reaction Steps
The procedure in J. Org. Chem. 1995, 50, 888-890 was followed. Briefly, a solution of quinic acid (20.0 g, 0.104 mol), benzaldehyde (16.6 g, 156 mmol) and para-toluenesulfonic acid monohydrate (1.0 g, 5.26 mmol) in toluene (350 mL) was refluxed for 10 hours in a flask equipped with a Dean-Stark trap. The reaction mixture was cooled, washed with saturated NaHCO3 solution and brine, dried (MgSO4). Filtered and concentrated. The concentrate was dissolved in 1:1 hexanes/ethyl acetate (100 mL) and cooled to −20° C. for 2 hours to provide 10.8 g (40%) of the desired product.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US06593314B1 |
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| Source dataset | uspto-grants-2003_07 |
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| ORD ID | ord-47e21702ef964b9caccb3deb3006df99 |
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| Source note | uspto-grants-2003_07 |
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