Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Methylamine | HCID 6329 | — |
| Reactant | Homophthalic anhydride | HCID 12801 | — |
| Solvent | Tetrahydrofuran | HCID 8028 | — |
| Product | HCID 59300078 | HCID 59300078 | — |
Reaction Steps
To 20 ml of 2.0 M methylamine in THF is added 1.62 g (10 mmol) of isochroman-1,3-dione at 0° C. The mixture is stirred at 25° C. for 45 m and concentrated to dryness. The residue is stirred in 40 ml of 0.3 N HCl. The white solid is filtered off, washed with water, and dried to give 1.74 g (90%); 1H NMR (DMSO-d6) δ 7.80 (s, 1H), 7.81 (s, 1H), 7.40 (m, 3H), 3.83 (s, 2H), 2.57 (s, 3H); MS (ES−) m/z 192.1 (M−H)−1.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US07713994B2 |
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| Source dataset | uspto-grants-2010_05 |
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| ORD ID | ord-e433e272231c4484aa41d2122bb90f3c |
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| Source note | uspto-grants-2010_05 |
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