Trimethyltin chloride → Stannane, (4-methoxyphenyl)trimethyl-
Reaction equation
[CH3:1][Sn:2](Cl)([CH3:4])[CH3:3].[CH3:6][O:7][C:8]1[CH:13]=[CH:12][C:11]([Mg]Br)=[CH:10][CH:9]=1>C1COCC1>[CH3:6][O:7][C:8]1[CH:13]=[CH:12][C:11]([Sn:2]([CH3:4])([CH3:3])[CH3:1])=[CH:10][CH:9]=1Participants
4
Reactant 2
Product 1
Reagents, catalysts & solvents 1
Conditions
- Temperature
- 60 °C
Procedure
To trimethyltin chloride (1.71 g, 8.58 mmol, 1.00 equiv) in THF (50 mL) at 23° C. was added 4-methoxyphenylmagnesium bromide (0.50 M in THF, 34.3 mL, 17 mmol, 2.0 equiv). After stirring for 1.0 hr at 60° C., the reaction mixture was cooled to 0° C. and quenched with saturated aqueous NH4Cl (50 mL), and Et2O (50 mL) was added. The phases were separated and the aqueous phase was extracted with Et2O (2×50 mL). The combined organic phases were washed with brine (100 mL) and dried (Na2SO4). The filtrate was concentrated in vacuo and the residue was purified by fractional distillation to afford 1.86 g of the title compound as a colorless oil (80% yield).
Workup
- temperaturethe reaction mixture was cooled to 0° C.
- customquenched with saturated aqueous NH4Cl (50 mL), and Et2O (50 mL)
- additionwas added
- customThe phases were separated
- extractionthe aqueous phase was extracted with Et2O (2×50 mL)
- washThe combined organic phases were washed with brine (100 mL)
- dry with materialdried (Na2SO4)
- concentrationThe filtrate was concentrated in vacuo
- distillationthe residue was purified by fractional distillation
Sources & evidence
- ORD record
- ord-e925e053d33849449334e0e189174817
- Source dataset
- uspto-grants-2015_05
- Patent number
- US09024093B2
Reaction notes
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