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Chemical Structure| 1333472-89-1 Chemical Structure| 1333472-89-1

Structure of 1333472-89-1

Chemical Structure| 1333472-89-1

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Product Details of [ 1333472-89-1 ]

CAS No. :1333472-89-1
Formula : C10H8N2OS
M.W : 204.25
SMILES Code : CC1=NN=C(C2=CC=C(C=O)C=C2)S1
MDL No. :MFCD28365821

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Application In Synthesis of [ 1333472-89-1 ]

* 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 [ 1333472-89-1 ]

[ 1333472-89-1 ] Synthesis Path-Downstream   1~1

  • 1
  • [ 54044-79-0 ]
  • [ 87199-17-5 ]
  • [ 1333472-89-1 ]
YieldReaction ConditionsOperation in experiment
85% With potassium phosphate; tetrakis(triphenylphosphine) palladium(0); In ethanol; toluene; at 55 - 80℃; for 18h;Inert atmosphere; A mixture of 2-bromo-5-methyl-l,3,4-thiadiazole A2-1 (13.1 g, 73.3 mmol), (4-formylphenyl)boronic acid Al (10.0 g, 66.7 mmol), 2M K3PO4 (66.7 mL, 133.4 mmol) in toluene (150 mL) and ethanol (38 mL) was heated to 55 C under nitrogen then degassed by alternately putting under vacuum and nitrogen three times for several minutes each. Tetrakis(triphenylphosphine)palladium (1.54 g, 1.33 mmol) was added, and then the mixture was degassed again. After heating for 18 hours at 80 C and cooling to room temperature, the aqueous layer was separated. The mixture was washed with brine and the remaining organic layer was reduced in volume by distillation. Addition of heptane provided a solid which was collected by filtration to give 4-(5-methyl-l,3,4-thiadiazol-2-yl)benzaldehyde Bl-1 as a solid in 85% yield.
85% A mixture of 2-bromo-5-methyl-l,3,4-thiadiazole A2-1 (13.1 g, 73.3 mmol), (4-formylphenyl)boronic acid Al (10.0 g, 66.7 mmol), 2M K3PO4 (66.7 mL, 133.4 mmol) in toluene (150 mL) and ethanol (38 mL) was heated to 55 C under nitrogen then degassed by alternately putting under vacuum and nitrogen three times for several minutes each. Tetrakis(triphenylphosphine)palladium (1.54 g, 1.33 mmol) was added, and then the mixture was degassed again. After heating for 18 hours at 80 C and cooling to room temperature, the aqueous layer was separated. The mixture was washed with brine and the remaining organic layer was reduced in volume by distillation. Addition of heptane provided a solid which was collected by filtration to give 4-(5-methyl-l,3,4-thiadiazol-2-yl)benzaldehyde Bl-1 as a solid in 85% yield.
85% With potassium phosphate; tetrakis(triphenylphosphine) palladium(0); In ethanol; toluene; at 55 - 80℃; for 18h;Inert atmosphere; A mixture of <strong>[54044-79-0]2-bromo-5-methyl-1,3,4-thiadiazole</strong> A2-1 (13.1 g, 73.3 mmol), (4-formylphenyl)boronic acid Al (10.0 g, 66.7 mmol), 2M K3P04 (66.7 mL, 133.4 mmol) in toluene (150 mL) and ethanol (38 mL) was heated to 55 C under nitrogen then degassed by alternately putting under vacuum and nitrogen three times for several minutes each. Tetrakis(triphenylphosphine)palladium (1.54 g, 1.33 mmol) wasadded, and then the mixture was degas sed again. After heating for 18 hours at 80 Ccooling to room temperature, the aqueous layer was separated. The mixture was washed with brine and the remaining organic layer was reduced in volume by distillation. Addition of heptane provided a solid which was collected by filtration to give 4-(5-methyl-1,3,4-thiadiazol-2-yl)benzaldehyde B1-1 as a solid in 85% yield.
51% With sodium carbonate;tetrakis(triphenylphosphine) palladium(0); In 1,4-dioxane; water;Inert atmosphere; Reflux; Example 34 1-(5-(4-bromo-3,5-dimethoxyphenyl)furan-2-yl)-2-methoxy-2-(4-(5-methyl-1,3,4-thiadiazol-2-yl)phenyl)ethanone To a solution of <strong>[54044-79-0]2-bromo-5-methyl-1,3,4-thiadiazole</strong> (2.0 g, 11.17 mmol) in dioxane (40 ml) was added 4-formylbenzeneboronic acid (3.35 g, 22.34 mmol) and 2M Na2CO3 (23 ml). This mixture was degassed with a stream of argon for 2 min. Tetrakis(triphenylphosphine)palladium (0.636 g, 0.55 mmol) was added and this mixture was heated at reflux overnight under argon. After cooling to room temperature, H2O (30 ml) and EtOAc (50 ml) were added and stirred for 5 min. The organic layer was separated and washed with brine, dried over Na2SO4 and concentrated in vacuo. Purification by chromatography (10 to 20% EtOAc/hexanes) gave 4-(5-methyl-1,3,4-thiadiazol-2-yl)benzaldehyde as a pale yellow liquid (1.16 g, 51% yield).

 

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