Triphenylphosphine → Ethyl 3-(2,6-dimethylbenzyloxy)phenylacetate

HRID 73452

Reaction equation

HRID 73452 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:27]=[C:28]([CH2:32][C:33]([O:35][CH2:36][CH3:37])=[O:34])[CH:29]=[CH:30][CH:31]=1.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:30]1[CH:29]=[C:28]([CH2:32][C:33]([O:35][CH2:36][CH3:37])=[O:34])[CH:27]=[CH:26][CH:31]=1

Participants

7

Reactant 4

HCID 11776TriphenylphosphineHCID 75555Diisopropyl diazene-1,2-dicarboxylateHCID 186748(2,6-Dimethylphenyl)methanolHCID 572437Ethyl (3-Hydroxyphenyl)acetate

Product 1

HCID 66875723Ethyl 3-(2,6-dimethylbenzyloxy)phenylacetate

Reagents, catalysts & solvents 2

HCID 3283Diethyl EtherSolventHCID 8028TetrahydrofuranSolvent2×

Procedure

A solution of 2,6-Dimethylbenzyl alcohol (5.25 g, 38.6 mmol) and diisopropyl azodicarboxylate (DIAD, 8.49 g, 42 mmol) in THF (30 ml) was added drop wise to a solution of Ethyl 3-hydroxyphenylacetate (6.66 g, 37 mmol) and triphenylphosphine (11 g, 42 mmol) in THF (100 ml). The reaction mixture was stirred at room temperature for 4 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-170539645e5d4da5b51054e5b32fd3b1
Source dataset
uspto-grants-2014_09
Patent number
US08829058B2

Linked notes

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