HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 979461Generated: October 29, 2026
1,1'-Biphenyl, mixt. with 1,1'-oxybis(benzene) → 5-Methylpyrido[2,3-e][1,2,4]triazolo[4,3-a]pyrazine-1,4(2H,5H)-dione
https://huagongshe.com/reaction/979461
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | 1,1'-Biphenyl, mixt. with 1,1'-oxybis(benzene) | HCID 24670 | — |
| Reactant | Methyl carbazate | HCID 80519 | — |
| Reactant | 2-Chloro-4-methylpyrido[2,3-b]pyrazin-3(4H)-one | HCID 13474231 | — |
| Product | 5-Methylpyrido[2,3-e][1,2,4]triazolo[4,3-a]pyrazine-1,4(2H,5H)-dione | HCID 13192941 | — |
Reaction Steps
A mixture of 7.5 g. of 2-chloro-4-methyl-pyrido(2,3-b)pyrazine-3-one, and 4 g. of methyl carbazate in 200 ml. of Dowtherm A was stirred and heated at 80° C. for 1 hour and then at 230° C. for 20 minutes.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US04668678 |
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| Source dataset | uspto-grants-1987_05 |
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| ORD ID | ord-e5a8514e9c1f47e6941f063823ebacf0 |
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| Source note | uspto-grants-1987_05 |
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