Ethyl 4-iodobenzoate → 4-Iodobenzyl alcohol

HRID 1765693Notes

Reaction equation

HRID 1765693 reaction equation
C([O:3][C:4](=O)[C:5]1[CH:10]=[CH:9][C:8]([I:11])=[CH:7][CH:6]=1)C.[H-].C([Al+]CC(C)C)C(C)C>ClCCl>[I:11][C:8]1[CH:9]=[CH:10][C:5]([CH2:4][OH:3])=[CH:6][CH:7]=1

Participants

4

Conditions

Temperature
0 °C

Procedure

A stirred, cooled (−78° C.) solution of ethyl-4-iodo-benzoate (available from Lancaster, 12.9 g, 45 mmol) in anhydrous dichloromethane (100 mL) under argon was treated with a 1M solution of di-isobutyl aluminum hydride in dichloromethane (100 mL, 100 mmol). The reaction mixture was allowed to warm to 0° C. in 1.5 h, quenched with saturated aqueous ammonium chloride solution and the resulting emulsion was filtered over a bed of celite. The phases in the filtrate were-separated and the aqueous phase was extracted with dichloromethane (×1). The combined organic phase was dried over anhydrous sodium sulfate, filtered and evaporated in vacuo to afford the title product as a white solid (9 g, 85%).

Workup

  1. customquenched with saturated aqueous ammonium chloride solution
  2. filtrationthe resulting emulsion was filtered over a bed of celite
  3. customThe phases in the filtrate were-separated
  4. extractionthe aqueous phase was extracted with dichloromethane (×1)
  5. dry with materialThe combined organic phase was dried over anhydrous sodium sulfate
  6. filtrationfiltered
  7. customevaporated in vacuo

Sources & evidence

ORD record
ord-5dd84c400938409fa49a8786745b3caa
Source dataset
uspto-grants-2007_06
Patent number
US07226951B2

Reaction notes

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