HuagongsheHuagongshe Chemistry Print Report · For research reference only
Water → HCID 67365529, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Water | HCID 962 | — |
| Reactant | Diethyl Ether | HCID 3283 | — |
| Reactant | N-bromobutanimide | HCID 67184 | — |
| Reactant | 7-Methoxy-2,2-dimethyl-2,3-dihydro-1-benzofuran | HCID 13531377 | — |
| Solvent | 2-Methyltetrahydrofuran | HCID 7301 | — |
| Product | HCID 67365529 | HCID 67365529 | — |
Reaction Steps
56 g 7-methoxy-2,2-dimethyl-2,3-dihydro-1-benzofuran are dissolved in 200 ml 2-methyltetrahydrofuran, 58 g N-bromosuccinimide are added portion wise, while keeping the temperature of the reaction mixture below 50° C., and the reaction is stirred for one hour at RT. Water and diethyl ether are added to the reaction mixture, the phases are separated, the organic phase is washed with 1 M aqueous sodium carbonate solution, dried over MgSO4, and the solvent is removed under reduced pressure. The resulting crude product is purified by distillation under vacuum yielding 5-bromo-7-methoxy-2,2-dimethyl-2,3-dihydro-1-benzofuran.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US08609848B2 |
| Source dataset | uspto-grants-2013_12 |
| ORD ID | ord-09b67e2f3ede460cb95e3c5090618509 |
| Source note | uspto-grants-2013_12 |