Hydrochloric Acid → 4-Methoxy-2-(3',4',5'-tris(octadecyloxy)cyclohexylmethyloxy)benzyl alcohol

HRID 537614Notes

Reaction equation

HRID 537614 reaction equation
[CH3:1][O:2][C:3]1[CH:10]=[CH:9][C:6]([CH:7]=[O:8])=[C:5]([O:11][CH2:12][CH:13]2[CH2:18][CH:17]([O:19][CH2:20][CH2:21][CH2:22][CH2:23][CH2:24][CH2:25][CH2:26][CH2:27][CH2:28][CH2:29][CH2:30][CH2:31][CH2:32][CH2:33][CH2:34][CH2:35][CH2:36][CH3:37])[CH:16]([O:38][CH2:39][CH2:40][CH2:41][CH2:42][CH2:43][CH2:44][CH2:45][CH2:46][CH2:47][CH2:48][CH2:49][CH2:50][CH2:51][CH2:52][CH2:53][CH2:54][CH2:55][CH3:56])[CH:15]([O:57][CH2:58][CH2:59][CH2:60][CH2:61][CH2:62][CH2:63][CH2:64][CH2:65][CH2:66][CH2:67][CH2:68][CH2:69][CH2:70][CH2:71][CH2:72][CH2:73][CH2:74][CH3:75])[CH2:14]2)[CH:4]=1.[BH4-].[Na+].Cl>C1COCC1.CO>[CH3:1][O:2][C:3]1[CH:10]=[CH:9][C:6]([CH2:7][OH:8])=[C:5]([O:11][CH2:12][CH:13]2[CH2:18][CH:17]([O:19][CH2:20][CH2:21][CH2:22][CH2:23][CH2:24][CH2:25][CH2:26][CH2:27][CH2:28][CH2:29][CH2:30][CH2:31][CH2:32][CH2:33][CH2:34][CH2:35][CH2:36][CH3:37])[CH:16]([O:38][CH2:39][CH2:40][CH2:41][CH2:42][CH2:43][CH2:44][CH2:45][CH2:46][CH2:47][CH2:48][CH2:49][CH2:50][CH2:51][CH2:52][CH2:53][CH2:54][CH2:55][CH3:56])[CH:15]([O:57][CH2:58][CH2:59][CH2:60][CH2:61][CH2:62][CH2:63][CH2:64][CH2:65][CH2:66][CH2:67][CH2:68][CH2:69][CH2:70][CH2:71][CH2:72][CH2:73][CH2:74][CH3:75])[CH2:14]2)[CH:4]=1

Participants

5

Reactant 3

HCID 313Hydrochloric AcidHCID 4311764Sodium borohydrideHCID 866548934-Methoxy-2-(3',4',5'-tris(octadecyloxy)cyclohexylmethyloxy)benzaldehyde

Product 1

HCID 532589174-Methoxy-2-(3',4',5'-tris(octadecyloxy)cyclohexylmethyloxy)benzyl alcoholYield 97%

Reagents, catalysts & solvents 1

HCID 21899815MeOH tetrahydrofuranSolvent

Procedure

4-Methoxy-2-(3′,4′,5′-tris(octadecyloxy)cyclohexylmethyloxy)benzaldehyde (73.56 g, 69.8 mmol) was dissolved in THF-methanol (1100 ml+55 ml), and sodium borohydride (3.17 g, 83.8 mmol) was added at 0° C. After stirring the mixture at room temperature for 1.5 hr, 0.2N hydrochloric acid (150 ml) was added at 0° C. to quench the reaction. The solvent was evaporated to about half, and the residue was dissolved in chloroform (1400 ml), washed twice with 0.1N hydrochloric acid (700 ml), and twice with pure water (700 ml). The solvent was evaporated, and the residue was precipitated with methanol (800 ml), and washed with acetonitrile (800 ml) to give 4-methoxy-2-(3′,4′,5′-tris(octadecyloxy)cyclohexylmethyloxy)benzyl alcohol (71.5 g, 67.7 mmol, 92% vs methyl 3,4,5-tris(octadecyloxy)cyclohexylcarboxylate).

Workup

  1. customto quench
  2. customthe reaction
  3. customThe solvent was evaporated to about half
  4. dissolutionthe residue was dissolved in chloroform (1400 ml)
  5. washwashed twice with 0.1N hydrochloric acid (700 ml)
  6. customThe solvent was evaporated
  7. customthe residue was precipitated with methanol (800 ml)
  8. washwashed with acetonitrile (800 ml)

Sources & evidence

ORD record
ord-517881b28f2b46d9a7f1525b5aafc841
Source dataset
uspto-grants-2014_10
Patent number
US08859732B2

Reaction notes

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