Hydrochloric Acid → 4-(Benzylsulfanyl)benzaldehyde

HRID 78233Notes

Reaction equation

HRID 78233 reaction equation
[CH2:1]([S:8][C:9]1[CH:14]=[CH:13][C:12]([CH:15]2OCC[O:16]2)=[CH:11][CH:10]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.O1CCCC1.Cl.C(=O)([O-])O.[Na+]>CO>[CH2:1]([S:8][C:9]1[CH:10]=[CH:11][C:12]([CH:15]=[O:16])=[CH:13][CH:14]=1)[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1

Participants

6

Reactant 4

HCID 313Hydrochloric AcidHCID 8028TetrahydrofuranHCID 516892Sodium BicarbonateHCID 59255250HCID 59255250, compound

Product 1

HCID 128424604-(Benzylsulfanyl)benzaldehydeYield 94.6%

Reagents, catalysts & solvents 1

HCID 887MethanolSolvent

Procedure

To a solution of 2-(4-benzylsulfanyl-phenyl)-[1,3]dioxolane (1.06 g, 3.89 mmol) described in Manufacturing Example 205-1-1 in methanol (5 mL) and tetrahydrofuran (5 mL) was added 1 N hydrochloric acid (4.16 mL), which was stirred for 30 minutes at room temperature. The mixture was cooled to 0° C. and neutralized with a saturated sodium hydrogencarbonate aqueous solution, and then extracted with ethyl acetate. The organic layer was separated, washed with water, dried over anhydrous magnesium sulfate, and filtered. The filtrate was concentrated under a reduced pressure to obtain the title compound (840 mg). The title compound was used in the following reaction without any further purification.

Workup

  1. temperatureThe mixture was cooled to 0° C.
  2. extractionextracted with ethyl acetate
  3. customThe organic layer was separated
  4. washwashed with water
  5. dry with materialdried over anhydrous magnesium sulfate
  6. filtrationfiltered
  7. concentrationThe filtrate was concentrated under a reduced pressure

Sources & evidence

ORD record
ord-001a81ee595240f6ac4d902ad9af3acb
Source dataset
uspto-grants-2014_09
Patent number
US08841327B2

Reaction notes

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