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Chemical Structure| 90005-07-5 Chemical Structure| 90005-07-5

Structure of 90005-07-5

Chemical Structure| 90005-07-5

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Product Details of [ 90005-07-5 ]

CAS No. :90005-07-5
Formula : C8H6BrN3
M.W : 224.06
SMILES Code : BrC1=CC=C(N2C=NN=C2)C=C1

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Application In Synthesis of [ 90005-07-5 ]

* 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 [ 90005-07-5 ]

[ 90005-07-5 ] Synthesis Path-Downstream   1~1

  • 1
  • [ 628-36-4 ]
  • [ 106-40-1 ]
  • [ 90005-07-5 ]
YieldReaction ConditionsOperation in experiment
72% With pyridine; chloro-trimethyl-silane; triethylamine; at 100℃; for 18h; Compound 75.1. 4-(4-Bromophenyl)-4H-l,2,4-triazole. Into a 100-mL round- bottom flask, was placed a solution of 4-bromoaniline (1.71 g, 9.94 mmol), N'- formylformohydrazide (2.64 g, 30.0 mmol), and triethylamine (9.74 mL, 69.9 mmol, 7.00 equiv) in pyridine (40 mL). Chlorotrimethylsilane (19.2 mL, 151 mmol) was added drop-wise and the resulting solution was stirred for 18 h at 100 C, then cooled to room temperature. The resulting mixture was concentrated under reduced pressure and the residue was diluted with brine (50 mL) and extracted with ethyl acetate (6 x 50 mL). The combined organic layers were dried (Na2S04), filtered, and concentrated under reduced pressure. The residue was washed with ether (30 mL) and the solids were collected by filtration to yield the title compo
72% With chloro-trimethyl-silane; triethylamine; In pyridine; at 100℃; for 18h; Compound 75.1. 4-(4-Bromophenyl)-4H-l,2,4-triazole. Into a 100-mL round- bottom flask, was placed a solution of 4-bromoaniline (1.71 g, 9.94 mmol), N- formylformohydrazide (2.64 g, 30.0 mmol), and triethylamine (9.74 mL, 69.9 mmol, 7.00 equiv) in pyridine (40 mL). Chlorotrimethylsilane (19.2 mL, 151 mmol) was added drop-wise and the resulting solution was stirred for 18 h at 100 C, then cooled to room temperature. The resulting mixture was concentrated under reduced pressure and the residue was diluted with brine (50 mL) and extracted with ethyl acetate (6 x 50 mL). The combined organic layers were dried ( a2S04), filtered, and concentrated under reduced pressure. The residue was washed with ether (30 mL) and the solids were collected by filtration to yield the title comp Compound 75. 5-(4-(4-(4H-l,2,4-Triazol-4-yl)phenyl)piperidine-l-carbonyl)-2- cyclobutyWV,4-dimethylbenzamide. The title compound was prepared using standard chemical manipulations and procedures similar to those used for the preparation of compound 62, except 4-(4-bromophenyl)-4H-l,2,4-triazole (compound 75.1) was used in place of 5- bromo-lH-indazole to yield the title compound as a yellow solid, m/z (ES+) 458 (M+H)+.
at 180℃; for 3h; A mixture of 4-bromoaniline (7.81 ml, 68.1 mmol) and 1 ,2-<strong>[628-36-4]diformylhydrazine</strong> (6 g, 68.1 mmol) was heated at 180 C for 3h. After cooling to rt, the residue was purified by silica gel chromatography using 50-100% ethyl acetate/hexane as the eluting solvents to give the title compound. LC/MS [M+l]+= 223.90, 225.90.
With pyridine; chloro-trimethyl-silane; triethylamine; at 100℃; A mixture of 4-bromoaniline (403A) (1.71 g, 9.94 mmol), N1- formylformohydrazide (2.64 g, 30 mmol), and Et3N (9.74 mL, 69.9 mmol) in pyridine (50 mL) was added TMSC1 (19.2 mL, 151 mmol) and stirred at 100 C overnight. The mixture was concentrated under reduced pressure, diluted with water (50 mL), and extracted with EtOAc (50 mL x 3). The combined organic layers was washed with brine (50 mL), dried over anhydrous sodium sulfate, filtered, and concentrated. The residue was slurried in ether (30 mL) and the resulting solid was collected by filtration to furnish Compound 403B. LC-MS (ESI) m/z: 224 [M+H]+; 1H-NMR (CDCb, 400 MHz): d (ppm) 7.30 (dd, J= 2, 6.8 Hz, 2H), 7.69 (dd, J= 2, 6.8 Hz, 2H), 8.47 (s, 2H).

 

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