Water → HCID 565576, compound

HRID 369523Notes

Reaction equation

HRID 369523 reaction equation
[H-].[Al+3].[Li+].[H-].[H-].[H-].[CH3:7][C:8]1([CH3:19])[C:12]2([C:16](O)=[O:17])[C:13]([CH2:15][CH:9]1[CH2:10][CH2:11]2)=[O:14].O>CCOCC>[CH3:7][C:8]1([CH3:19])[CH:9]2[CH2:10][CH2:11][C:12]1([CH2:16][OH:17])[CH:13]([OH:14])[CH2:15]2

Participants

5

Procedure

To an ice-cooled mixture of lithium aluminum hydride (4 g, 105.4 mmol) in ether was added dropwise a solution of camphorsulfonyl chloride (10 g, 39.88 mmol) and ketopinic acid, prepared as described in Step 1, above. After the addition was complete, the ice bath was removed and the mixture was stirred at ambient temperature for 2 hrs. The mixture was cooled again and wet ether was added cautiously. When the violent reaction subsided, water was added. The mixture was then extracted three times with ethyl acetate. The combined extracts were washed with water and brine and dried over anhydrous magnesium sulfate. Evaporation of the solution gave 4.8 g of a white powder. NMR(δ): 0.90 (s, 3H), 1.20 (s, 3H).

Workup

  1. customprepared
  2. additionAfter the addition
  3. customthe ice bath was removed
  4. temperatureThe mixture was cooled again
  5. additionwet ether was added cautiously
  6. customWhen the violent reaction
  7. extractionThe mixture was then extracted three times with ethyl acetate
  8. washThe combined extracts were washed with water and brine
  9. dry with materialdried over anhydrous magnesium sulfate
  10. customEvaporation of the solution

Sources & evidence

ORD record
ord-0f662be41e3e4b72a22c22c5035b198e
Source dataset
uspto-grants-2000_10
Patent number
US06139781

Reaction notes

Loading…