4,5-Dibromothiophene-2-sulfonyl chloride → HCID 15342059, compound

HRID 232733

Reaction equation

HRID 232733 reaction equation
[NH2:1][C:2]1[O:6][N:5]=[C:4]([CH3:7])[C:3]=1[Br:8].[Br:9][C:10]1[CH:11]=[C:12]([S:16](Cl)(=[O:18])=[O:17])[S:13][C:14]=1[Br:15]>>[Br:8][C:3]1[C:4]([CH3:7])=[N:5][O:6][C:2]=1[NH:1][S:16]([C:12]1[S:13][C:14]([Br:15])=[C:10]([Br:9])[CH:11]=1)(=[O:18])=[O:17]

Participants

3

Reactant 2

HCID 5227554,5-Dibromothiophene-2-sulfonyl chlorideHCID 104875194-Bromo-3-methylisoxazol-5-amine

Product 1

HCID 15342059HCID 15342059, compoundYield 45%

Procedure

N-(4-Bromo-3-methyl-5-isoxazolyl)-4,5-dibromo thiophene-2-sulfonamide was prepared in the same manner as described in Example 2 from 5-amino-4-bromo-3-methylisoxazole and 4,5-dibromothiophene-2-sulphonyl chloride in 45% yield. Purification was achieved by recrystallization from ethyl acetate/hexanes to give a crystalline solid, m.p. 153°-155° C.

Workup

  1. customPurification
  2. customwas achieved by recrystallization from ethyl acetate/hexanes
  3. customto give a crystalline solid, m.p. 153°-155° C.

Sources & evidence

ORD record
ord-dad8173bc4574a70926ad579a6cfba40
Source dataset
uspto-grants-1997_01
Patent number
US05591761

Linked notes

Loading…