Potassium Carbonate → HCID 57831336, compound

HRID 1927435Notes

Reaction equation

HRID 1927435 reaction equation
[C:1]([C:3]1[CH:8]=[CH:7][C:6]([CH2:9][CH2:10][CH:11](/[CH:21]=[CH:22]/[C:23]2[CH:28]=[CH:27][CH:26]=[CH:25][C:24]=2[OH:29])[CH2:12][CH2:13][CH2:14][CH2:15][C:16]([O:18][CH2:19][CH3:20])=[O:17])=[CH:5][CH:4]=1)#[N:2].[C:30]([C:34]1[CH:41]=[CH:40][C:37]([CH2:38]Br)=[CH:36][CH:35]=1)([CH3:33])([CH3:32])[CH3:31].C(=O)([O-])[O-].[K+].[K+]>C(#N)C>[C:30]([C:34]1[CH:35]=[CH:36][C:37]([CH2:38][O:29][C:24]2[CH:25]=[CH:26][CH:27]=[CH:28][C:23]=2/[CH:22]=[CH:21]/[CH:11]([CH2:10][CH2:9][C:6]2[CH:7]=[CH:8][C:3]([C:1]#[N:2])=[CH:4][CH:5]=2)[CH2:12][CH2:13][CH2:14][CH2:15][C:16]([O:18][CH2:19][CH3:20])=[O:17])=[CH:40][CH:41]=1)([CH3:33])([CH3:31])[CH3:32]

Participants

5

Reactant 3

HCID 11430Potassium CarbonateHCID 878361-(Bromomethyl)-4-(1,1-dimethylethyl)benzeneHCID 57831338Ethyl E-6-[2-(4-cyanophenyl)ethyl]-8-(2-hydroxyphenyl)oct-7-enoate

Product 1

HCID 57831336HCID 57831336, compound

Reagents, catalysts & solvents 1

HCID 6342AcetonitrileSolvent

Procedure

A solution of 2300 mg (5.87 mmol) of ethyl E-6-[2-(4-cyanophenyl)ethyl]-8-(2-hydroxyphenyl)oct-7-enoate in 160 ml of dry acetonitrile is mixed with 1600 mg (7.05 mmol) of 4-(tert-butyl)benzyl bromide and 1220 mg (8.81 mmol) of anhydrous potassium carbonate and heated under reflux for 12 hours. The mixture is then concentrated to dryness. The residue is taken up in ethyl acetate, washed with water and saturated sodium chloride solution, dried over sodium sulfate and the organic phase concentrated. The resulting crude product is purified by flash chromatography an silica gel (mobile phase: cyclohexane/ethyl acetate 10:1). 2800 mg (5.21 mmol, 88% of theory) of a solid are obtained.

Workup

  1. temperatureheated
  2. temperatureunder reflux for 12 hours
  3. concentrationThe mixture is then concentrated to dryness
  4. washwashed with water and saturated sodium chloride solution
  5. dry with materialdried over sodium sulfate
  6. concentrationthe organic phase concentrated
  7. customThe resulting crude product is purified by flash chromatography an silica gel (mobile phase: cyclohexane/ethyl acetate 10:1)
  8. custom2800 mg (5.21 mmol, 88% of theory) of a solid are obtained

Sources & evidence

ORD record
ord-515ad39d2d7f4948a0caa9f181265cba
Source dataset
uspto-grants-2012_05
Patent number
US08183271B2

Reaction notes

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