Trifluoroacetic acid → n-(4-Amino-3-methylphenyl) {[(5-chloro(2-thienyl))sulfonyl]amino}-carboxamide

HRID 562678Notes

Reaction equation

HRID 562678 reaction equation
C(OC([NH:8][C:9]1[CH:14]=[CH:13][C:12]([NH:15][C:16]([NH:18][S:19]([C:22]2[S:23][C:24]([Cl:27])=[CH:25][CH:26]=2)(=[O:21])=[O:20])=[O:17])=[CH:11][C:10]=1[CH3:28])=O)(C)(C)C.C(O)(C(F)(F)F)=O>C(Cl)Cl>[NH2:8][C:9]1[CH:14]=[CH:13][C:12]([NH:15][C:16]([NH:18][S:19]([C:22]2[S:23][C:24]([Cl:27])=[CH:25][CH:26]=2)(=[O:21])=[O:20])=[O:17])=[CH:11][C:10]=1[CH3:28]

Participants

4

Reactant 2

HCID 6422Trifluoroacetic acidHCID 22064442N-(4-[(tert-butoxy)carbonylamino]-3-methylphenyl}{[(5-chloro(2-thienyl))sulfonyl]amino}carboxamide

Product 1

HCID 22064409n-(4-Amino-3-methylphenyl) {[(5-chloro(2-thienyl))sulfonyl]amino}-carboxamideYield 136.7%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

To a chilled solution of N-{4-[(tert-butoxy)carbonylamino]-3-methylphenyl}{[(5-chloro(2-thienyl))sulfonyl]amino}carboxamide (0.246 g, 0.55 mmol) in CH2Cl2 (5 mL) was added neat TFA (1.1 mL). The reaction mixture was stirred cold for 1.5 hr, concentrated in vacuo, azeotroped with heptane and dried to give N-(4-amino-3-methylphenyl){[(5-chloro(2-thienyl))sulfonyl]amino}-carboxamide (0.26 g) as the mono TFA salt. ES-MS (M+H)+=346.

Workup

  1. concentrationconcentrated in vacuo
  2. customazeotroped with heptane
  3. customdried

Sources & evidence

ORD record
ord-81adf4c7e89e4c3aa3b8d7c3584ef5a9
Source dataset
uspto-grants-2011_11
Patent number
US08067428B2

Reaction notes

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