Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Methylhydrazine | HCID 6061 | — |
| Reactant | Dimethyl acetylenedicarboxylate | HCID 12980 | — |
| Solvent | Diethyl Ether | HCID 3283 | — |
| Product | HCID 12492956 | HCID 12492956 | 72% |
Reaction Steps
To a solution of dimethylacetylene dicarboxylate (50.0 g, 344.8 mmol) in diethylether (1 L) under argon at 0° C. was added a solution of methylhydrazine (18.52 mL, 344.8 mL) in diethylether (100 mL) and the resulting mixture stirred for 2 h. The precipitate was filtered off, dissolved in ethanol (300 mL) at 50° C. and then the solution cooled to −20° C. whereupon the solid was filtered off and dried to afford the title compound (46.8 g, 72%) as a light yellow solid. MS: m/e=189.3 [M+H]+.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08163728B2 |
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| Source dataset | uspto-grants-2012_04 |
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| ORD ID | ord-b9474d8ed8ff4e51b21820ec25bdb144 |
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| Source note | uspto-grants-2012_04 |
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