Ethyl orthopropionate → N-(1-Ethoxypropylidene)-3-phenyl-1,2,4-thiadiazole-5-sulfonamide

HRID 704028Notes

Reaction equation

HRID 704028 reaction equation
[C:1]1([C:7]2[N:11]=[C:10]([S:12]([NH2:15])(=[O:14])=[O:13])[S:9][N:8]=2)[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.[C:16](OCC)(OCC)([O:19][CH2:20][CH3:21])[CH2:17][CH3:18]>CCCCCC>[CH2:20]([O:19][C:16](=[N:15][S:12]([C:10]1[S:9][N:8]=[C:7]([C:1]2[CH:2]=[CH:3][CH:4]=[CH:5][CH:6]=2)[N:11]=1)(=[O:14])=[O:13])[CH2:17][CH3:18])[CH3:21]

Participants

4

Reactant 2

HCID 66995Ethyl orthopropionateHCID 141831323-Phenyl-1,2,4-thiadiazole-5-sulfonamide

Product 1

HCID 54146625N-(1-Ethoxypropylidene)-3-phenyl-1,2,4-thiadiazole-5-sulfonamide

Reagents, catalysts & solvents 1

HCID 8058HexaneSolvent

Procedure

A mixture of 3.0 g of 3-phenyl-1,2,4-thiadiazole-5-sulfonamide and 11 ml of triethyl orthopropionate was warmed in an oil bath at 80° for 4 hours. The mixture was cooled to room temperature and diluted with hexane (35 ml) and the precipitated solid was collected, washed with hexane and dried to give 3.3 g of solid, m.p. 98°-100°.

Workup

  1. temperaturewas warmed in an oil bath at 80° for 4 hours
  2. customthe precipitated solid was collected
  3. washwashed with hexane
  4. customdried

Sources & evidence

ORD record
ord-ae3eacd06bfb41ca9021af38647dbc45
Source dataset
uspto-grants-1991_01
Patent number
US04985450

Reaction notes

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