HuagongsheHuagongshe Chemistry Print Report · For research reference only
Imidazole → (3R,4S)-3-[4-(4-Bromo-phenoxy)-3-(tert-butyl-dimethyl-silanyloxy)-pentyl]-pyridine
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Imidazole | HCID 795 | — |
| Reactant | tert-Butyldimethylsilyl chloride | HCID 28928 | — |
| Reactant | (2S,3R)-2-(4-bromophenoxy)-5-pyridin-3-ylpentan-3-ol | HCID 57304612 | — |
| Solvent | Dichloromethane | HCID 6344 | — |
| Product | (3R,4S)-3-[4-(4-Bromo-phenoxy)-3-(tert-butyl-dimethyl-silanyloxy)-pentyl]-pyridine | HCID 57150561 | 93.6% |
Reaction Steps
To a solution of (2S,3R)-2-(4-bromophenoxy)-5-pyridin-3-ylpentan-3-ol (2.01 g, Example 15d)) in dry dichloromethane (50 ml) was added tert-butyldimethylsilyl chloride (1.81 g) and imidazole (0.814 g) and the resulting solution stirred for 24 hours, concentrated and the residue purified by column chromatography on silica gel eluting with dichloromethane:diethyl ether (1:1) to afford the sub-title compound as an oil (2.52 g).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US06143751 |
| Source dataset | uspto-grants-2000_11 |
| ORD ID | ord-216f727cf4954bd7b10515f91cd5589d |
| Source note | uspto-grants-2000_11 |