Triphenylphosphine → Ethyl 2-(2-(2,6-dimethylbenzyloxy)phenyl)acetate

HRID 73467

Reaction equation

HRID 73467 reaction equation
[CH3:1][C:2]1[CH:9]=[CH:8][CH:7]=[C:6]([CH3:10])[C:3]=1[CH2:4][OH:5].N(C(OC(C)C)=O)=NC(OC(C)C)=O.O[C:26]1[CH:31]=[CH:30][CH:29]=[CH:28][C:27]=1[CH2:32][C:33]([O:35][CH2:36][CH3:37])=[O:34].C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1>C1COCC1.CCOCC>[CH3:1][C:2]1[CH:9]=[CH:8][CH:7]=[C:6]([CH3:10])[C:3]=1[CH2:4][O:5][C:26]1[CH:31]=[CH:30][CH:29]=[CH:28][C:27]=1[CH2:32][C:33]([O:35][CH2:36][CH3:37])=[O:34]

Participants

7

Reactant 4

HCID 11776TriphenylphosphineHCID 75555Diisopropyl diazene-1,2-dicarboxylateHCID 186748(2,6-Dimethylphenyl)methanolHCID 5210752-(2-Hydroxyphenyl)acetic acid ethyl ester

Product 1

HCID 66875211Ethyl 2-(2-(2,6-dimethylbenzyloxy)phenyl)acetate

Reagents, catalysts & solvents 2

HCID 3283Diethyl EtherSolventHCID 8028TetrahydrofuranSolvent2×

Procedure

A solution of 2,6-Dimethylbenzyl alcohol (2.72 g, 19.9 mmol) and diisopropyl azodicarboxylate (DIAD, 3.67 g, 18.2 mmol) in THF (30 ml) was added drop wise to a solution of Ethyl 2-(2-hydroxyphenyl)acetate (3 g, 16.6 mmol) and triphenylphosphine (4.76 g, 18.2 mmol) in THF (80 ml). The reaction mixture was stirred at room temperature for 6 hours, diluted with ether and washed with water and brine. The organic layer was dried over Na2SO4, filtered, concentrated, and purified by flash chromatography on a silica gel column (hex:ethyl acetate 4:1) to give the title compound.

Workup

  1. washwashed with water and brine
  2. dry with materialThe organic layer was dried over Na2SO4
  3. filtrationfiltered
  4. concentrationconcentrated
  5. custompurified by flash chromatography on a silica gel column (hex:ethyl acetate 4:1)

Sources & evidence

ORD record
ord-7c09c85c35414845bd80800128d5b651
Source dataset
uspto-grants-2014_09
Patent number
US08829058B2

Linked notes

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