HuagongsheHuagongshe Chemistry Print Report · For research reference only
Sodium Hydroxide → HCID 53639864, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Sodium Hydroxide | HCID 14798 | — |
| Reactant | HCID 54494548 | HCID 54494548 | — |
| Solvent | Methanol | HCID 887 | — |
| Solvent | Water | HCID 962 | — |
| Solvent | Tetrahydrofuran | HCID 8028 | — |
| Product | HCID 53639864 | HCID 53639864 | 86.8% |
Reaction Steps
A mixture of rac.-alpha-oxo-4-[[2-(1,2,3,4-tetrahydro-2-naphthalenyloxy)ethyl]oxy]benzeneacetic acid methyl ester (0.69 g) in hot methanol (10 mL) plus enough tetrahydrofuran to dissolve the solids, was treated with 1N sodium hydroxide (4 mL) and diluted with water. The organic solvent was removed under vacuum and the residue was mixed with water, acidified with excess hydrochloric acid, and extracted with dichloromethane. The organic layer was dried (Na2SO4), filtered, and evaporated to give crude product. Crystallization from diethyl ether-hexane provided 0.575 g of rac.-alpha-oxo-4-[[2-(1,2,3,4-tetrahydro-2-naphthalenyloxy)ethyl]oxy]benzeneacetic acid as a colorless solid, mp 119°-120° C.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US05344843 |
| Source dataset | uspto-grants-1994_09 |
| ORD ID | ord-775a87db089648e1bb9eb8e560258359 |
| Source note | uspto-grants-1994_09 |