Ethynylcyclohexane → HCID 76764663, compound

HRID 1499005Notes

Reaction equation

HRID 1499005 reaction equation
CC(P(C(C)(C)C)C1C(C2C=CC=CC=2)=CC=CC=1)(C)C.[C:22]([P:28](=[O:33])([OH:32])[O:29][CH2:30][CH3:31])#[C:23][CH2:24][CH2:25][CH2:26][CH3:27].[C:34]([CH:36]1[CH2:41][CH2:40][CH2:39][CH2:38][CH2:37]1)#[CH:35]>[Au].ClC(Cl)C>[CH2:30]([O:29][P:28]1(=[O:32])[CH:22]=[C:23]([CH2:24][CH2:25][CH2:26][CH3:27])[CH:35]=[C:34]([CH:36]2[CH2:41][CH2:40][CH2:39][CH2:38][CH2:37]2)[O:33]1)[CH3:31]

Participants

6

Reactant 3

HCID 70263EthynylcyclohexaneHCID 27342152-(Di-tert-butylphosphino)biphenyl2×HCID 90020040HCID 90020040, compound

Product 1

HCID 76764663HCID 76764663, compoundYield 47%

Reagents, catalysts & solvents 2

HCID 23985GoldCatalystHCID 63651,1-DichloroethaneSolvent2×

Procedure

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 hex-1-ynylphosphonate (57.0 mg, 0.3 mmol) diluted with 0.5 mL of dichloroethane was added thereto, and finally, ethynylcyclohexane (64.9 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-n-butyl-6-cyclohexyl-1,2-oxaphosphorin 2-oxide (42.1 mg, 47%) 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-c92619660f344a6db89cfb12ade0b408
Source dataset
uspto-grants-2015_12
Patent number
US09200019B2

Reaction notes

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