Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Triethylamine | HCID 8471 | — |
| Reactant | Methanesulfonyl chloride | HCID 31297 | — |
| Reactant | Cyclopentanol, 3-[[(1,1-dimethylethyl)dimethylsilyl]oxy]- | HCID 21938628 | — |
| Catalyst | 4-(Dimethylamino)pyridine | HCID 14284 | — |
| Solvent | Dichloromethane | HCID 6344 | — |
| Product | HCID 18435713 | HCID 18435713 | 53.1% |
Reaction Steps
To a solution of 3-(tert-butyldimethylsilanyloxy)cyclopentanol (3.5 g, 16 mmol) in DCM (30 mL) was added triethylamine (2.65 mL, 19.4 mmol) and DMAP (20 mg, 0.16 mmol). The reaction mixture was cooled to 0° C. and methanesulfonyl chloride (1.34 mL, 16.5 mmol) was added dropwise. The reaction mixture was stirred at room temperature for 16 h. The reaction mixture was washed with water and the organic layer was dried over sodium sulfate, filtered, and concentrated. Purification of the residue by column chromatography (20% diethyl ether:hexanes) afforded 2.5 g (53%) of the title compound. 1H NMR (300 MHz, CDCl3): δ 5.19-5.3 (m, 1H), 4.4 (m, 1H), 3.0 (s, 3H), 1.8-2.3 (m, 4H), 1.5-1.7 (m, 2H), 0.86 (s, 9H), 0.05 (s, 6H).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|
| Patent number | US08378104B2 |
|---|
| Source dataset | uspto-grants-2013_02 |
|---|
| ORD ID | ord-c7c20cd910354b00912cbd69540dd490 |
|---|
| Source note | uspto-grants-2013_02 |
|---|