Benzylacetylene → HCID 90019824, compound

HRID 1498997Notes

Reaction equation

HRID 1498997 reaction equation
CC(P(C(C)(C)C)[C:6]1[C:11]([C:12]2C=CC=[CH:14][CH:13]=2)=[CH:10][CH:9]=[CH:8][CH:7]=1)(C)C.[C:22]1([C:28]#[C:29][P:30](=[O:35])([OH:34])[O:31][CH2:32][CH3:33])[CH:27]=[CH:26][CH:25]=[CH:24][CH:23]=1.C(C1C=CC=CC=1)C#C>[Au].ClC(Cl)C>[CH2:32]([O:31][P:30]1(=[O:34])[CH:29]=[C:28]([C:22]2[CH:23]=[CH:24][CH:25]=[CH:26][CH:27]=2)[CH:14]=[C:13]([CH2:12][C:11]2[CH:6]=[CH:7][CH:8]=[CH:9][CH:10]=2)[O:35]1)[CH3:33]

Participants

6

Reactant 3

HCID 575753BenzylacetyleneHCID 27342152-(Di-tert-butylphosphino)biphenyl2×HCID 86041878HCID 86041878, compound

Product 1

HCID 90019824HCID 90019824, compoundYield 70%

Reagents, catalysts & solvents 2

HCID 23985GoldCatalystHCID 63651,1-DichloroethaneSolvent2×

Procedure

Method 2—A gold (Ag(I)) catalyst {[Au(JohnPhos)NCCH3]+SbF6—} [JohnPhos:(2-biphenyl)di-tert-butylphosphine] (11.3 mg, 0.015 mmol) was put into a reaction container, and dichloroethane (0.4 mL) was put thereinto. After stirring at room temperature for 5 minutes, ethyl hydrogen phenylethynylphosphonate (63.0 mg, 0.3 mmol) diluted with 0.5 mL of dichloroethane was added thereto, and finally, prop-2-ynylbenzene (70 mg, 0.6 mmol) was put thereinto. Then, when all of the starting materials disappeared in the TLC, the reaction was allowed to be completed. After the solvent was removed under low atmospheric pressure, the product was separated by chromatography to obtain 2-ethoxy-4-phenyl-6-benzyl-1,2-oxaphosphorin 2-oxide (68.5 mg, 70%) which is a title compound.

Workup

  1. additionwas added
  2. customAfter the solvent was removed under low atmospheric pressure
  3. customthe product was separated by chromatography

Sources & evidence

ORD record
ord-cd8110978286417ebc746c26cd4d9c3d
Source dataset
uspto-grants-2015_12
Patent number
US09200019B2

Reaction notes

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