(Diethylamino)sulfur trifluoride → HCID 67153916, compound

HRID 59217Notes

Reaction equation

HRID 59217 reaction equation
[CH2:1]([O:8][C@H:9]1[C@H:15]([O:16][CH2:17][C:18]2[CH:23]=[CH:22][CH:21]=[CH:20][CH:19]=2)[C@@H:14]([O:24][CH2:25][C:26]2[CH:31]=[CH:30][CH:29]=[CH:28][CH:27]=2)[C@:13]2([C:33]3[CH:38]=[CH:37][C:36]([Cl:39])=[C:35]([CH2:40][C:41]4[CH:46]=[CH:45][C:44]([O:47][CH2:48][CH3:49])=[CH:43][CH:42]=4)[CH:34]=3)[O:32][C@@:10]1([CH2:50]O)[CH2:11][O:12]2)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.C(N(S(F)(F)[F:58])CC)C>ClCCl>[CH2:1]([O:8][C@H:9]1[C@H:15]([O:16][CH2:17][C:18]2[CH:23]=[CH:22][CH:21]=[CH:20][CH:19]=2)[C@@H:14]([O:24][CH2:25][C:26]2[CH:31]=[CH:30][CH:29]=[CH:28][CH:27]=2)[C@:13]2([C:33]3[CH:38]=[CH:37][C:36]([Cl:39])=[C:35]([CH2:40][C:41]4[CH:46]=[CH:45][C:44]([O:47][CH2:48][CH3:49])=[CH:43][CH:42]=4)[CH:34]=3)[O:32][C@@:10]1([CH2:50][F:58])[CH2:11][O:12]2)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1

Participants

4

Reactant 2

HCID 123472(Diethylamino)sulfur trifluorideHCID 67153941HCID 67153941, compound

Product 1

HCID 67153916HCID 67153916, compoundYield 7%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent2×

Procedure

To a solution of {(1S,2S,3S,4R,5S)-2,3,4-Tris-benzyloxy-5-[4-chloro-3-(4-ethoxy-benzyl)-phenyl]-6,8-dioxa-bicyclo[3.2.1]oct-1-yl}-methanol (616 mg, 0.871 mmol) in dichloromethane (3 mL) at 0 degrees Celsius was added diethylaminosulfur trifluoride (170 microL, 1.3 mmol) and the resulting mixture was slowly warmed to room temperature and stirred at this temperature for 16 hours. The mixture was diluted with dichloromethane and washed with a saturated solution of aqueous sodium bicarbonate, dried over sodium sulfate, filtered and concentrated in vacuo. The residue was purified by flash chromatography over silica gel using a 40 g redisep silica cartridge (eluting with a gradient of 0 to 20% ethyl acetate in heptane) to afford (1S,2S,3S,4R,5S)-2,3,4-tris-benzyloxy-5-[4-chloro-3-(4-ethoxy-benzyl)-phenyl]-1-fluoromethyl-6,8-dioxa-bicyclo[3.2.1]octane as a colorless oil (40 mg, 7% yield). (LCMS) 753.4 (M+HCOO−: negative mode).

Workup

  1. washwashed with a saturated solution of aqueous sodium bicarbonate
  2. dry with materialdried over sodium sulfate
  3. filtrationfiltered
  4. concentrationconcentrated in vacuo
  5. customThe residue was purified by flash chromatography over silica gel using a 40 g redisep silica cartridge (
  6. washeluting with a gradient of 0 to 20% ethyl acetate in heptane)

Sources & evidence

ORD record
ord-2b07358abe594217b1429f6c3ad40488
Source dataset
uspto-grants-2016_09
Patent number
US09439902B2

Reaction notes

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