HuagongsheHuagongshe Chemistry Print Report · For research reference only
Water → 3,5-dibromo-1-trityl-1H-1,2,4-triazole
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Water | HCID 962 | — |
| Reactant | Trityl chloride | HCID 6456 | — |
| Reactant | Triethylamine | HCID 8471 | — |
| Reactant | 3,5-Dibromo-4H-1,2,4-triazole | HCID 81904 | — |
| Solvent | Dimethylformamide | HCID 6228 | — |
| Product | 3,5-dibromo-1-trityl-1H-1,2,4-triazole | HCID 57804036 | 98.8% |
Reaction Steps
Trityl chloride (6.8 g, 24 mmol) was added to a solution of 3,5-dibromo-1H-1,2,4-triazole (5 g, 22 mmol) and triethylamine (3.4 mL, 24.2 mmol) in DMF (100 mL) and stirred 16 h. The mixture was poured into rapidly stirred water (300 mL). The white precipitate was collected, washed with hexanes and dried on high vacuum to yield 10.2 g of Intermediate 359.1 as a white solid. 1H NMR (400 MHz, CDCl3) δ ppm 7.09-7.17 (m, 6H) 7.28-7.35 (m, 9H).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US07576098B2 |
| Source dataset | uspto-grants-2009_08 |
| ORD ID | ord-5a2bd46f56a440dfb0392e5f85ce7480 |
| Source note | uspto-grants-2009_08 |