Tetramethyltin → 1-(4-Methoxy-3-tricyclo[3.3.1.13,7]dec-1-ylphenyl)ethanone

HRID 1756462Notes

Reaction equation

[C:1]12([C:11]3[CH:12]=[C:13]([CH:17]=[CH:18][C:19]=3[O:20][CH3:21])[C:14]([OH:16])=O)[CH2:10][CH:5]3[CH2:6][CH:7]([CH2:9][CH:3]([CH2:4]3)[CH2:2]1)[CH2:8]2.S(Cl)(Cl)=O.[CH3:26]N(C)P(N(C)C)(N(C)C)=O.C[Sn](C)(C)C>C1(C)C=CC=CC=1.[CH2-]C1C=CC=CC=1.C1C=CC(P(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1.C1C=CC(P(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1.[Cl-].[Pd+2].O>[C:1]12([C:11]3[CH:12]=[C:13]([C:14](=[O:16])[CH3:26])[CH:17]=[CH:18][C:19]=3[O:20][CH3:21])[CH2:8][CH:7]3[CH2:9][CH:3]([CH2:4][CH:5]([CH2:6]3)[CH2:10]1)[CH2:2]2

Participants

Conditions

Temperature: 100 °C

Procedure

15.75 g (0.055 mol) of 3-(1-adamantyl)-4-methoxybenzoic acid, dissolved in 150 ml of toluene, are treated with 7.3 ml of thionyl chloride and heated to 100° C. for 3 h 30 min. The reaction medium is evaporated to dryness and 30 ml of hexamethylphosphoramide, 8 ml (0.0575 mol) of tetramethyltin and 22 mg of benzylbis(triphenylphosphine)palladium(II) chloride are then added under nitrogen to this evaporation residue. The reaction medium is heated to 65° C. for 30 min and is then left stirring at room temperature overnight. The reaction medium is poured into water and the mixture is extracted with ether. After chromatography on silica, 10.47 g (71%) of the expected derivative, melting point 138°-140° C., are isolated in the dichloromethane/hexane (60:40) eluent.

Workup

additionare then added under nitrogen to this evaporation residue
temperatureThe reaction medium is heated to 65° C. for 30 min
waitis then left
extractionthe mixture is extracted with ether
customAfter chromatography on silica, 10.47 g (71%) of the expected derivative, melting point 138°-140° C., are isolated in the dichloromethane/hexane (60:40) eluent

Sources & evidence

ORD record: ord-69122481a2d0461f9683e2f6eff72ed6
Source dataset: uspto-grants-1995_08
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US05439925

Reaction notes

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