Dimethyl Sulfoxide → HCID 57638156, compound

HRID 1366806Notes

Reaction equation

HRID 1366806 reaction equation
CS(C)=O.C(Cl)(=O)C(Cl)=O.[CH3:11][N:12]1[CH2:17][CH2:16][N:15]([C:18]2[CH:33]=[CH:32][C:21]([O:22][CH2:23][C:24]3[CH:31]=[CH:30][C:27]([CH2:28][OH:29])=[CH:26][CH:25]=3)=[CH:20][CH:19]=2)[CH2:14][CH2:13]1.C(N(CC)CC)C>C(Cl)Cl>[CH3:11][N:12]1[CH2:13][CH2:14][N:15]([C:18]2[CH:33]=[CH:32][C:21]([O:22][CH2:23][C:24]3[CH:31]=[CH:30][C:27]([CH:28]=[O:29])=[CH:26][CH:25]=3)=[CH:20][CH:19]=2)[CH2:16][CH2:17]1

Participants

6

Reactant 4

HCID 679Dimethyl SulfoxideHCID 8471TriethylamineHCID 65578Oxalyl chlorideHCID 57637965HCID 57637965, compound

Product 1

HCID 57638156HCID 57638156, compound

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent3×

Conditions

Temperature
-78 °C

Procedure

To a solution of DMSO (2.6 equivalents) in dry DCM, cooled to −78° C. under N2 was added oxalyl chloride (1.1 equivalents) in DCM drop-wise. The solution was stirred at −78° C. for 5 minutes before a solution of 4-[4-(4-methylpiperazin-1-yl)phenoxymethyl]benzyl alcohol (1 equivalent) in DCM was added drop-wise, and allowed to stir at −78° C. for another 30 minutes. Triethylamine (2.5 equivalents) was slowly dripped in before allowing the solution to reach ambient temperatures. The solution was washed with aqueous NaHCO3 and brine, dried over MgSO4 and concentrated to provide the crude 4-[4-(4-methylpiperazin-1-yl)phenoxymethyl]benzaldehyde that was converted to thiosemicarbazones according to Scheme 7.

Workup

  1. additionwas added drop-wise
  2. washThe solution was washed with aqueous NaHCO3 and brine
  3. dry with materialdried over MgSO4
  4. concentrationconcentrated

Sources & evidence

ORD record
ord-41bfb1d0ab7a45999a25833ad514b5b6
Source dataset
uspto-grants-2011_02
Patent number
US07893096B2

Reaction notes

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