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Methanol → HCID 19019154, compound

HRID 574267
Notes
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Reaction equation

HRID 574267 reaction equation
[Br:1][CH2:2][CH2:3][CH:4]1[O:8][C:7](C)(C)[O:6][C:5]1=[O:11].CC1C=CC(S(O)(=O)=O)=CC=1.O.CO>C1(C)C=CC=CC=1>[CH3:7][O:6][C:5](=[O:11])[CH:4]([OH:8])[CH2:3][CH2:2][Br:1]
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

5

Reactant 3

HCID 887MethanolHCID 521998p-Toluenesulfonic acid monohydrateHCID 67143720HCID 67143720, compound

Product 1

HCID 19019154HCID 19019154, compoundYield 83%

Reagents, catalysts & solvents 1

HCID 1140TolueneSolvent

Procedure

To a solution of 5-(2-bromo-ethyl)-2,2-dimethyl-[1,3]dioxolan-4-one (synthesized as instructed in Tetrahedron Letters, 1997, 38, 28, 4935) (93 mg, 0.416 mmol) in toluene (0.5 mL) were added p-TsOH.H2O (8 mg, 0.0415 mmol) and methanol (0.5 mL), followed stirring overnight at room temperature. The solution was concentrated in a vacuum, diluted with dichloromethane and washed with an aqueous saturated sodium bicarbonate solution. The organic layer thus formed was dried over sodium sulfate and filtered. The filtrate was concentrated to produce 68 mg of the compound as an oil. 1H NMR (300 MHz, CDCl3) δ 1.98 (1H, m), 2.34 (1H, m), 2.96 (1H, d), 3.56 (2H, m), 3.82 (3H, s), 4.37 (1H, pentet).

Workup

  1. concentrationThe solution was concentrated in a vacuum
  2. additiondiluted with dichloromethane
  3. washwashed with an aqueous saturated sodium bicarbonate solution
  4. customThe organic layer thus formed
  5. dry with materialwas dried over sodium sulfate
  6. filtrationfiltered
  7. concentrationThe filtrate was concentrated

Sources & evidence

ORD record
ord-855d9b29f33845d3b89d95972e9fc1b4
Source dataset
uspto-grants-2015_05
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US09034850B2

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes