HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2408615Generated: October 30, 2026
Dimethylbarbituric acid → HCID 68488633, compound
https://huagongshe.com/reaction/2408615
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Dimethylbarbituric acid | HCID 69860 | — |
| Reactant | HCID 68283240 | HCID 68283240 | — |
| Catalyst | HCID 178418397 | HCID 178418397 | — |
| Solvent | Dichloromethane | HCID 6344 | — |
| Product | HCID 68488633 | HCID 68488633 | 4.6% |
Reaction Steps
2-Allyl-8-methyl-5-(2-(pyridin-4-yl)vinyl)-2,3,4,5-tetrahydro-1H-pyrido[4,3-b]indole (50 mg, 0.151 mmol) was dissolved in DCM (2 mL), which was degassed with nitrogen for 15 min. To this was added Pd(PPh3)4 (4 mg, 0.002 mmol) followed by 1,3-dimethyl barbituric acid (71 mg, 0.454 mmol). The reaction mixture was again degassed by nitrogen for 15 min. The resultant mixture was stirred at RT for 1 h. DCM was evaporated in vacuo. EtOAc (20 mL) was added to reaction mixture and was washed with saturated potassium carbonate solution (3×1 mL). The organic layer was dried over anhydrous sodium sulfate, evaporated in vacuo and purified by reverse phase HPLC to obtain 2 mg of 8-methyl-5-(2-(pyridin-4-yl)vinyl)-2,3,4,5-tetrahydro-1H-pyrido[4, 3-b]indole. 1H NMR (CD3OD, Free base): δ (ppm): 8.45 (d, 2H), 8.0 (d, 1H), 7.7 (d, 1H), 7.58 (d, 2H), 7.3 (s, 1H), 7.19 (d, 1H), 6.8 (d, 1H), 4.29 (s, 2H), 3.42 (m, 2H), 3.2 (m, 2H), 2.4 (s, 3H).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08815843B2 |
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| Source dataset | uspto-grants-2014_08 |
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| ORD ID | ord-0b1528e306c74f7ca37d95334403e564 |
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| Source note | uspto-grants-2014_08 |
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