Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Acetic Anhydride | HCID 7918 | — |
| Reactant | 1-Butyne, 3-chloro-3-methyl- | HCID 70679 | — |
| Reactant | HCID 18318065 | HCID 18318065 | — |
| Product | HCID 18318073 | HCID 18318073 | — |
Reaction Steps
A solution of 30.2 mmol (6.15 g) of 2,2-dimethyl-6-ethoxy-1,2-dihydroquinoline (prepared according to the procedure described in Steps 1 and 2 of Example 1 starting from 2-chloro-2-methyl-3-butyne) in 45 ml of acetic anhydride is heated at 100° C. under an inert atmosphere for 3 hours. After cooling, the medium is concentrated and the residue is purified by chromatography on silica gel, using a dichloromethane:ethyl acetate mixture 95:5 as eluant, to yield the expected compound.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US06350759B1 |
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| Source dataset | uspto-grants-2002_02 |
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| ORD ID | ord-827e1bdb30dd402d93b7f2613794475b |
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| Source note | uspto-grants-2002_02 |
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