Reaction #985316

ord-203a9b8813974ef6b56ea1e9bbf0b63d

Reaction equation

CCCCCCSc1nc(C)cc(C(C)O)n1
1-(2-Hexylsulfanyl-6-methyl-pyrimidin-4-yl)-ethanol
CC(C)=O.O=S(=O)(O)O.[O]=[Cr](=[O])=[O]
Jones' reagent
O=S(=O)(O)O
H2SO4
CCCCCCSc1nc(C)cc(C(C)=O)n1
white crystals
Yield 44.0%
CCCCCCSc1nc(C)cc(C(C)=O)n1
1-(2-Hexylsulfanyl-6-methyl-pyrimidin-4-yl)-ethanone
Yield 44.0%

Solvents

Conditions

Temperature
20°CELSIUS
Detailed conditions
See reaction.notes.procedure_details.

Workup

  1. 1
    workup.ADDITIONwas add dropwise
  2. 2
    Otherthe resulting green solution was decanted from the chromium salts
  3. 3
    Extractionextracted with AcOEt and sat. NaCl solution
  4. 4
    OtherThe crude product was purified by chromatography on silica gel with a heptane/AcOEt gradient

Procedure

1-(2-Hexylsulfanyl-6-methyl-pyrimidin-4-yl)-ethanol (2.2 g, 8.65 mmol) was dissolved under nitrogen in acetone (20 mL). Then 2 M Jones' reagent prepared from 20 g CrO3 in 100 mL 4 M H2SO4 (6.5 mL, 13 mmol) was add dropwise. After stirring for 2 h at 20° C., the resulting green solution was decanted from the chromium salts and extracted with AcOEt and sat. NaCl solution. The crude product was purified by chromatography on silica gel with a heptane/AcOEt gradient. One obtained 960 mg (44 %) of white crystals. MS: m/z=252 (M).

Source

DOI: 10.6084/m9.figshare.5104873.v1Patent: US07351700B2uspto-grants-2008_04