Ammonium Chloride → HCID 86714026, compound

HRID 576309Notes

Reaction equation

HRID 576309 reaction equation
C([O:4][C:5]1[CH:10]=[C:9]([Cl:11])[C:8]([CH2:12][C:13]2[CH:18]=[CH:17][C:16]([O:19][CH2:20][CH3:21])=[CH:15][CH:14]=2)=[CH:7][C:6]=1[C@H:22]1[C@H:27]([O:28][CH2:29][C:30]2[CH:35]=[CH:34][CH:33]=[CH:32][CH:31]=2)[C@@H:26]([O:36][CH2:37][C:38]2[CH:43]=[CH:42][CH:41]=[CH:40][CH:39]=2)[C@H:25]([O:44][CH2:45][C:46]2[CH:51]=[CH:50][CH:49]=[CH:48][CH:47]=2)[C@@H:24]([CH2:52][O:53][CH2:54][C:55]2[CH:60]=[CH:59][CH:58]=[CH:57][CH:56]=2)[O:23]1)C=C.[BH4-].[Na+].[NH4+].[Cl-]>C1COCC1.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[Cl:11][C:9]1[C:8]([CH2:12][C:13]2[CH:14]=[CH:15][C:16]([O:19][CH2:20][CH3:21])=[CH:17][CH:18]=2)=[CH:7][C:6]([C@H:22]2[C@H:27]([O:28][CH2:29][C:30]3[CH:35]=[CH:34][CH:33]=[CH:32][CH:31]=3)[C@@H:26]([O:36][CH2:37][C:38]3[CH:43]=[CH:42][CH:41]=[CH:40][CH:39]=3)[C@H:25]([O:44][CH2:45][C:46]3[CH:51]=[CH:50][CH:49]=[CH:48][CH:47]=3)[C@@H:24]([CH2:52][O:53][CH2:54][C:55]3[CH:60]=[CH:59][CH:58]=[CH:57][CH:56]=3)[O:23]2)=[C:5]([OH:4])[CH:10]=1

Participants

6

Reactant 3

HCID 25517Ammonium ChlorideHCID 4311764Sodium borohydrideHCID 86714024HCID 86714024, compound

Product 1

HCID 86714026HCID 86714026, compoundYield 68.6%

Reagents, catalysts & solvents 2

HCID 178418397HCID 178418397, compoundCatalystHCID 8028TetrahydrofuranSolvent

Procedure

To a suspension of compound 26 (1.50 g, 1.82 mmol) and tetrakis(triphenylphosphine)palladium(0) (0.22 g, 0.18 mmol) in THF (20 mL) was added NaBH4 (0.56 g, 14.6 mmol) at 0° C. The mixture was warmed up to r.t. slowly and stirred at r.t. for 12 hours. The reaction mixture was cooled to 0° C. and aqueous saturated NH4Cl solution (50 mL) was added to the mixture. The mixture was extracted with EtOAc (100 mL). The organic layer was washed with brine, dried over anhydrous MgSO4, filtered and concentrated in vacuo. The residue was purified using normal phase column chromatography to provide the title product 27 (0.98 g, 68%).

Workup

  1. temperatureThe reaction mixture was cooled to 0° C.
  2. extractionThe mixture was extracted with EtOAc (100 mL)
  3. washThe organic layer was washed with brine
  4. dry with materialdried over anhydrous MgSO4
  5. filtrationfiltered
  6. concentrationconcentrated in vacuo
  7. customThe residue was purified

Sources & evidence

ORD record
ord-ca8222ad42794ef1a92895f8f2898059
Source dataset
uspto-grants-2015_05
Patent number
US09034921B2

Reaction notes

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