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Chemical Structure| 1224945-44-1 Chemical Structure| 1224945-44-1

Structure of 1224945-44-1

Chemical Structure| 1224945-44-1

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Product Details of [ 1224945-44-1 ]

CAS No. :1224945-44-1
Formula : C15H20BrNO2
M.W : 326.23
SMILES Code : O=C(N1C(C2=CC=CC=C2Br)CCC1)OC(C)(C)C
MDL No. :MFCD14635682

Safety of [ 1224945-44-1 ]

GHS Pictogram:
Signal Word:Warning
Hazard Statements:H302-H315-H319
Precautionary Statements:P501-P270-P264-P280-P302+P352-P337+P313-P305+P351+P338-P362+P364-P332+P313-P301+P312+P330

Application In Synthesis of [ 1224945-44-1 ]

* 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 [ 1224945-44-1 ]

[ 1224945-44-1 ] Synthesis Path-Downstream   1~1

  • 1
  • [ 24424-99-5 ]
  • [ 129540-24-5 ]
  • [ 1224945-44-1 ]
YieldReaction ConditionsOperation in experiment
98.1% With dmap; triethylamine; In dichloromethane; at 20℃; for 16h; A mixture solution of 2- (2-bromophenyl) pyrrolidine (1.13 g, 5 mmol), Boc 2O (2.16 g, 10 mmol), TEA (1.01 g, 10 mmol) and DMAP (cat) in DCM (20 mL) was stirred at room temperature for 16hrs. Then the mixture solution was concentrated, and the residue was purified by chromatography on silica-gel (eluting with 100%PE to PE /EA = 5 /1) to give the product (1.6 g, 98.1%) as a colorless oil. MS (ESI, m/e) [M+1] + 270.0, 272.0
In tetrahydrofuran; Compound 18 tert-Butyl <strong>[129540-24-5]2-(2-bromophenyl)pyrrolidine</strong>-1-carboxylate To a solution of <strong>[129540-24-5]2-(2-bromophenyl)pyrrolidine</strong> (compound 10; 257 mmol, 58 g) in dry tetrahydrofuran (870 mL), cooled with a water bath, was added di-tert-butyl dicarbonate (264 mmol, 57.7 g) in tetrahydrofuran (150 mL) dropwise over 30 minutes. The cooling bath was removed and the reaction stirred at room temperature for two days. The solvent was removed in vacuo and the residue taken up in methylene chloride (1 L), washed with 0.5M Citric acid (400 mL), brine (500 mL) and dried over sodium sulfate. Crystallisation from iso-hexane gave tert-butyl <strong>[129540-24-5]2-(2-bromophenyl)pyrrolidine</strong>-1-carboxylate (42 g) and further tert-butyl <strong>[129540-24-5]2-(2-bromophenyl)pyrrolidine</strong>-1-carboxylate (33 g) was obtained by chromatography of the mother liquors on 800 g silica gel, eluting with heptane-ethyl acetate 9:1 to 3:1.
In tetrahydrofuran; at 20℃;Cooling with water bath; Compound 18; tert-Butyl <strong>[129540-24-5]2-(2-bromophenyl)pyrrolidine</strong>-1 -carboxylateTo a solution of <strong>[129540-24-5]2-(2-bromophenyl)pyrrolidine</strong> (compound W; 257 mmol, 58 g) in dry tetrahydrofuran (870 ml_), cooled with a water bath, was added di-tert-butyl dicarbo- nate (264 mmol, 57.7 g) in tetrahydrofuran (150 ml.) dropwise over -30 minutes. The cooling bath was removed and the reaction stirred at room temperature for two days. The solvent was removed in vacuo and the residue taken up in methylene chloride (1 L), washed with 0.5M Citric acid (400 ml_), brine (500 ml_) and dried over sodium sulfate. Crystallisation from iso-hexane gave tert-butyl <strong>[129540-24-5]2-(2-bromophenyl)pyrrolidine</strong>-1 -carboxylate (42 g) and further tert-butyl <strong>[129540-24-5]2-(2-bromophenyl)pyrrolidine</strong>-1 -carboxylate (33 g) was obtained by chromatography of the mother liquors on 80Og silica gel, eluting with heptane-ethyl acetate 9:1 to 3:1.
 

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