HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1416305Generated: November 4, 2026
5,6-Dimethylbenzimidazole → 1H-Furo[3,4-f]benzimidazole-5,7-dione
https://huagongshe.com/reaction/1416305
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | 5,6-Dimethylbenzimidazole | HCID 675 | — |
| Reactant | benzimidazole-5,6-dicarboxylic acid | HCID 7023591 | — |
| Product | 1H-Furo[3,4-f]benzimidazole-5,7-dione | HCID 10845278 | 81.5% |
Reaction Steps
Benzimidazole-5,6-dicarboxylic acid (8.2 g), prepared from 5,6-dimethylbenzimidazole as described in J.Org.Chem. 1987, 52, 2934., was heated at 250° C. under vacuum (0.01 mm Hg) for 1 h. The solid was extracted with hot acetone and the acetone extracts were evaporated to give the title compound (6.1 g).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US05912260 |
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| Source dataset | uspto-grants-1999_06 |
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| ORD ID | ord-8d039b3793844ab9a102886c2463afb6 |
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| Source note | uspto-grants-1999_06 |
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