Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Sodium Hydroxide | HCID 14798 | — |
| Reactant | Hydrazine hydrate (1:1) | HCID 24654 | — |
| Reactant | HCID 18758227 | HCID 18758227 | — |
| Solvent | Diethylene Glycol | HCID 8117 | — |
| Product | HCID 18378701 | HCID 18378701 | — |
Reaction Steps
140 μl (2.9 mmol) of hydrazine hydrate and 80 mg (2 mmol) of sodium hydroxide are added to a solution of 200 mg (0.6 mmol) of the compound obtained in Step B in 2 ml of diethylene glycol. After 24 hours' stirring at 160° C., the mixture is hydrolysed and then extracted with ethyl acetate. The organic phase is washed several times with water, dried over magnesium sulphate, concentrated and then purified by flash chromatography over silica gel (eluant: petroleum ether/ethyl acetate, 7:3) to yield the title compound in the form of a yellow oil.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US06495543B1 |
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| Source dataset | uspto-grants-2002_12 |
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| ORD ID | ord-13ef10b7135745c2a7fb5e65da5c356e |
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| Source note | uspto-grants-2002_12 |
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