Triethylamine → 1,4-Dioxaspiro(4.5)decan-8-yl methanesulfonate
Reaction equation
[O:1]1[C:5]2([CH2:10][CH2:9][CH:8]([OH:11])[CH2:7][CH2:6]2)[O:4][CH2:3][CH2:2]1.C(N(CC)CC)C.[CH3:19][S:20](Cl)(=[O:22])=[O:21]>ClCCl.O>[CH3:19][S:20]([O:11][CH:8]1[CH2:9][CH2:10][C:5]2([O:4][CH2:3][CH2:2][O:1]2)[CH2:6][CH2:7]1)(=[O:22])=[O:21]Participants
6
Procedure
To an ice cold solution of the alcohol from Step 1 (4.59 g, 29 mmol) and triethylamine (8.0 mL, 57 mmol) in dichloromethane (100 mL) was added methanesulfonyl chloride (3.3 mL, 43 mmol). The reaction was then diluted with water (80 mL) and extracted with CH2Cl2 (2×50 mL). The combined organic layers were dried over MgSO4 and concentrated to give the title compound as a yellow oil.
Workup
- extractionextracted with CH2Cl2 (2×50 mL)
- dry with materialThe combined organic layers were dried over MgSO4
- concentrationconcentrated
Sources & evidence
- ORD record
- ord-70d40bd266344f3b93e8d4153f924b33
- Source dataset
- uspto-grants-2000_06
- Patent number
- US06071954
Reaction notes
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