Chlorotrimethylsilane → Ethyl 4-[(5,6,7,8-tetrahydro-8,8-dimethyl-5-trimethylsiloxynaphth-2-yl)ethynyl]benzoate

HRID 1235

Reaction equation

HRID 1235 reaction equation
[OH:1][CH:2]1[CH2:11][CH2:10][C:9]([CH3:13])([CH3:12])[C:8]2[CH:7]=[C:6]([C:14]#[C:15][C:16]3[CH:26]=[CH:25][C:19]([C:20]([O:22][CH2:23][CH3:24])=[O:21])=[CH:18][CH:17]=3)[CH:5]=[CH:4][C:3]1=2.C(N(CC)CC)C.Cl[Si:35]([CH3:38])([CH3:37])[CH3:36]>C(Cl)Cl>[CH3:13][C:9]1([CH3:12])[C:8]2[CH:7]=[C:6]([C:14]#[C:15][C:16]3[CH:17]=[CH:18][C:19]([C:20]([O:22][CH2:23][CH3:24])=[O:21])=[CH:25][CH:26]=3)[CH:5]=[CH:4][C:3]=2[CH:2]([O:1][Si:35]([CH3:38])([CH3:37])[CH3:36])[CH2:11][CH2:10]1

Participants

5

Reactant 3

HCID 6397ChlorotrimethylsilaneHCID 8471TriethylamineHCID 15391671Ethyl 4-[(5,6,7,8-tetrahydro-5-hydroxy-8,8-dimethylnaphth-2-yl)ethynyl]benzoate2×

Product 1

HCID 19694971Ethyl 4-[(5,6,7,8-tetrahydro-8,8-dimethyl-5-trimethylsiloxynaphth-2-yl)ethynyl]benzoate

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

To a solution of 0.23 g (0.54 mmol) of ethyl 4-[(5,6,7,8-tetrahydro-5-hydroxy-8,8-dimethylnaphth-2-yl)ethynyl]benzoate (Compound 9) in 4 ml of dry CH2Cl2 was added 0.06 ml of triethylamine (0.81 mmol). The solution was flushed with nitrogen and then 0.12 g (0.81 mmol) of chlorotrimethylsilane was slowly added by syringe. The mixture was stirred at room temperature (flushed with nitrogen) for 30 minutes, concentrated in vacuo to an oil and purified by flash chromatography (silica, 10% EtOAc-hexane) to yield the title compound as a clear oil.

Workup

  1. customThe solution was flushed with nitrogen
  2. custom(flushed with nitrogen) for 30 minutes
  3. concentrationconcentrated in vacuo to an oil
  4. custompurified by flash chromatography (silica, 10% EtOAc-hexane)

Sources & evidence

ORD record
ord-312409619c75422fbcb4db7823828526
Source dataset
uspto-grants-1998_03
Patent number
US05723620

Linked notes

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