Sodium triacetoxyborohydride → HCID 21706143, compound

HRID 1533455Notes

Reaction equation

HRID 1533455 reaction equation
[OH:1][C:2]1[C:14]2[C:13]3[C:8](=[CH:9][C:10]([CH:15]=[O:16])=[CH:11][CH:12]=3)[C:7](=[O:17])[C:6]=2[CH:5]=[CH:4][CH:3]=1.C(O[BH-](OC(=O)C)OC(=O)C)(=O)C.[Na+]>C1COCC1>[OH:1][C:2]1[C:14]2[C:13]3[C:8](=[CH:9][C:10]([CH2:15][OH:16])=[CH:11][CH:12]=3)[C:7](=[O:17])[C:6]=2[CH:5]=[CH:4][CH:3]=1

Participants

4

Reactant 2

HCID 5049666Sodium triacetoxyborohydrideHCID 21706134HCID 21706134, compound

Product 1

HCID 21706143HCID 21706143, compound

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Procedure

A stirred mixture of 405.2 mg (1.8 mmol) of aldehyde prepared in Step G and 804.3 mg (3.8 mmol) of sodium triacetoxyborohydride in 27 mL of anhydrous THF was refluxed under nitrogen for 1 hour. The cooled mixture was partitioned between EtOAc, ice-water and saturated NaHCO3, and the organic phase was separated, washed with brine, dried over Na2SO4, filtered, evaporated, and dried in vacuo. Purification by PLC with CH2Cl2-EtOAc (2:1) yielded 303.7 mg of the crystalline, title product.

Workup

  1. temperaturewas refluxed under nitrogen for 1 hour
  2. customThe cooled mixture was partitioned between EtOAc, ice-water and saturated NaHCO3
  3. customthe organic phase was separated
  4. washwashed with brine
  5. dry with materialdried over Na2SO4
  6. filtrationfiltered
  7. customevaporated
  8. customdried in vacuo
  9. customPurification by PLC with CH2Cl2-EtOAc (2:1)

Sources & evidence

ORD record
ord-4a2dc484f506446a98836319fe9ce6fb
Source dataset
uspto-grants-2001_03
Patent number
US06207823B1

Reaction notes

Loading…