1,2-Ethanedithiol → HCID 86615015, compound

HRID 1436695Notes

Reaction equation

HRID 1436695 reaction equation
[CH3:1][O:2][C:3](=[O:24])[C:4]1[CH:16]=[C:15]([C:17]([C:19]2[O:20][CH:21]=[CH:22][CH:23]=2)=O)[CH:14]=[C:6]([C:7]([N:9]([CH3:13])[CH2:10][CH2:11][CH3:12])=[O:8])[CH:5]=1.[CH2:25]([SH:28])[CH2:26][SH:27].B(F)(F)F.CCCCOCCCC>ClCCl>[CH3:1][O:2][C:3](=[O:24])[C:4]1[CH:16]=[C:15]([C:17]2([C:19]3[O:20][CH:21]=[CH:22][CH:23]=3)[S:28][CH2:25][CH2:26][S:27]2)[CH:14]=[C:6]([C:7]([N:9]([CH3:13])[CH2:10][CH2:11][CH3:12])=[O:8])[CH:5]=1

Participants

5

Reactant 3

HCID 109021,2-EthanedithiolHCID 68970Boron, trifluoro[1,1'-oxybis[butane]]-, (T-4)-HCID 68816228HCID 68816228, compound

Product 1

HCID 86615015HCID 86615015, compoundYield 38%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent2×

Conditions

Temperature
0 °C

Procedure

Dissolve 5-(furan-2-carbonyl)-N-methyl-N-propyl-isophthalamic acid methyl ester (290 mg, 0.88 mmol) in dichloromethane (2 mL). Cool to 0° C., add a solution of ethane-1,2-dithiol (0.22 mL, 2.2 mmol) and then add a solution of boron trifluoride dibutyl etherate (0.66 mL, 5.2 mmol) in dichloromethane (5 mL). Warm the mixture to room temperature and stir overnight. Quench with water and dilute with dichloromethane. Wash the organic layer by saturated aqueous sodium chloride, dry (magnesium sulfate), concentrate and purify (silica gel chromatography, eluting with 0:100 to 30:70 ethyl acetate:hexanes) to give the title compound (38%).

Workup

  1. temperatureWarm the mixture to room temperature
  2. customQuench with water
  3. additiondilute with dichloromethane
  4. washWash the organic layer by saturated aqueous sodium chloride
  5. dry with materialdry (magnesium sulfate)
  6. concentrationconcentrate
  7. custompurify
  8. wash(silica gel chromatography, eluting with 0:100 to 30:70 ethyl acetate:hexanes)

Sources & evidence

ORD record
ord-27162fc6cd8740fca96c25c8d4bfccff
Source dataset
uspto-grants-2009_11
Patent number
US07618978B2

Reaction notes

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