Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Iodobenzene | HCID 11575 | — |
| Reactant | Tris(1,1-dimethylethyl)phosphine | HCID 83681 | — |
| Reactant | Indolo(3,2-b)carbazole | HCID 114764 | — |
| Reactant | Sodium t-butoxide | HCID 23676156 | — |
| Catalyst | Dibenzalacetone palladium | HCID 72499888 | — |
| Solvent | O-Xylene | HCID 7237 | — |
| Product | HCID 12220806 | HCID 12220806 | 211.7% |
Reaction Steps
Indolo[3,2-b]carbazole (1.20 g, 4,68 mmol) was suspended in 48 ml of o-xylene under nitrogen and treated with iodobenzene (2.10 g, 10.3 mmol) followed by the sodium t-butoxide (1.35 g, 14.0 mmol), tri-t-butylphosphine (0.15 g, 0.74 mmol) and palladium dibenzylideneacetone (0.34 g, 0.37 mmol). The resulting mixture was heated to 120° C. and stirred for 20 minutes. It was then cooled to room temperature filtered through a short pad of silica gel and the pad washed with toluene. The combined filtrates were combined and concentrated to dryness to afford a dark-colored solid. Purification using a Biotage® automated flash purification system afforded 0.640 g of N,N′-bis(phenyl)-indolo[3,2-b]carbazole with a purity of 99.7%. MP=306.5° C.; Tg=238.9° C.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US09293716B2 |
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| Source dataset | uspto-grants-2016_03 |
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| ORD ID | ord-25c1941aed7544d89903df545490c7ba |
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| Source note | uspto-grants-2016_03 |
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