Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Hydroxylamine | HCID 787 | — |
| Reactant | Methanol | HCID 887 | — |
| Reactant | Potassium Hydroxide | HCID 14797 | — |
| Reactant | HCID 85973476 | HCID 85973476 | — |
| Solvent | Tetrahydrofuran | HCID 8028 | — |
| Product | HCID 85086496 | HCID 85086496 | 62% |
Reaction Steps
To a solution of 6-(naphthalen-2-ylsulfanyl)-hexa-2,4-dienoic acid methyl ester (0.505 g, 1.78 mmol) in distilled THF (10 mL) containing 50% aqueous hydroxylamine (1.08 mL, 16.4 mmol) was added at 0° C. a solution of potassium hydroxide in methanol (1M, 2.5 ml, 2.5 mmol) over a period of 30 minutes. After stirring the mixture at 0° C. for an additional hour, distilled water (10 mL) was added and the mixture was made neutral by dropwise addition of concentrated hydrochloric acid (10 M) at 0° C. The solution was extracted with ethyl acetate (2×50 mL), and the combined extracts were dried over anhydrous MgSO4, and evaporated to dryness. The solid residue was recrystallised from ethyl acetate to give the title compound (0.315 g, 62%) as a white solid.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|
| Patent number | US07683185B2 |
|---|
| Source dataset | uspto-grants-2010_03 |
|---|
| ORD ID | ord-fce186ff40064af69e73f36c58e0e44a |
|---|
| Source note | uspto-grants-2010_03 |
|---|