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Product Details of 1,3,4-Thiadiazole-2,5-dithiol

CAS No. :1072-71-5
Formula : C2H2N2S3
M.W : 150.25
SMILES Code : SC1=NN=C(S)S1
MDL No. :MFCD00003103
InChI Key :BIGYLAKFCGVRAN-UHFFFAOYSA-N
Pubchem ID :2723630

Safety of 1,3,4-Thiadiazole-2,5-dithiol

GHS Pictogram:
Signal Word:Danger
Hazard Statements:H302-H318-H411
Precautionary Statements:P264-P270-P273-P280-P301+P312+P330-P305+P351+P338+P310-P391-P501
Class:9
UN#:3077
Packing Group:

Application In Synthesis of 1,3,4-Thiadiazole-2,5-dithiol

* All experimental methods are cited from the reference, please refer to the original source for details. We do not guarantee the accuracy of the content in the reference.

  • Downstream synthetic route of [ 1072-71-5 ]

[ 1072-71-5 ] Synthesis Path-Downstream   1~4

  • 1
  • [ 1072-71-5 ]
  • [ 4263-52-9 ]
  • disodium salt of S,S'-(1,3,4-thiadiazole-2,5-diyl)bis(2-mercaptoethanesulfonic acid) [ No CAS ]
  • 2
  • [ 3034-48-8 ]
  • [ 1072-71-5 ]
  • 2,5-bis(5-nitrothiazol-2-ylthio)-1,3,4-thiadiazole [ No CAS ]
  • 3
  • [ 16957-70-3 ]
  • [ 1072-71-5 ]
  • C14H22N2O4S3 [ No CAS ]
YieldReaction ConditionsOperation in experiment
With sulfuric acid; In water; at 45 - 55℃; In a four-necked flask equipped with a stirrer, a reflux condenser and a thermometer, 160 g of 70percent sulfuric acid was added, 38 g of 2,5-dimercaptothiadiazole was added, dissolved in a sulfuric acid solution, Adding 57.8 g of strawberry acid, reacting at 45-55 DEG C for 3-4 hours, cooling to below 30 DEG C, generating intermediate compound, adding water to dilute the reaction material, filtering and filtering, and filtering cake with 10percent aqueous solution of potassium hydroxide , The filtrate is acidified with dilute hydrochloric acid solution until the pH is 1-2. The target compound is precipitated again, filtered and washed with water to obtain the purified intermediate compound. The purified intermediate compound is charged into a four- Toluene solution, 79 g of diisopropanolamine, and refluxed at 100 to 110 ° C for 3 to 4 hours. The reaction mixture was cooled and the toluene was distilled off to give 2,5-dimercaptothiadiazole diamide derivative ; Adding 200g of petroleum ether and 89.9g of phosphorus pentoxide to dissolve in a four-necked bottle and conducting reflux reaction for 3 to 4 hours at 70-80 DEG C under the protection of nitrogen; after the reaction is completed, cooling the reaction mixture, Distillate petroleum ether to obtain water-soluble 2,5-dimercapto thiadiazole phosphate organic corrosion inhibitor.
  • 4
  • [ 1072-71-5 ]
  • [ 17329-87-2 ]
  • 2-sulfhydryl-5-[(4-nitro-phenylcarbamoyl)-methylthio]-1,3,4-thiadiazole [ No CAS ]
YieldReaction ConditionsOperation in experiment
73.8% With sodium hydroxide; In ethanol; water; at 20℃; General procedure: A solution of sodium hydroxide (6 mmol) in water(20 mL) was added to a mixture of 2,5-dimercapto-1,3,4-thiadiazole(6 mmol), appropriate 2-chloro-N-(substituted-phenyl)-acetamide 4 (5 mmol) and ethanol (10 mL). The mixture wasstirred for 4-5 h at room temperature (the end of reaction was monitored by TLC), after completion, the mixture was poured into water. The resulting precipitate was collected by filtration,washed well with water and further purified by recrystallization from ethanol to afford target compounds.
 

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