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Type HazMat fee for 500 gram (Estimated)
Excepted Quantity USD 0.00
Limited Quantity USD 15-60
Inaccessible (Haz class 6.1), Domestic USD 80+
Inaccessible (Haz class 6.1), International USD 150+
Accessible (Haz class 3, 4, 5 or 8), Domestic USD 100+
Accessible (Haz class 3, 4, 5 or 8), International USD 200+
Chemical Structure| 156094-64-3 Chemical Structure| 156094-64-3
Chemical Structure| 156094-64-3
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Product Details of [ 156094-64-3 ]

CAS No. :156094-64-3
Formula : C7H7Br2NO
M.W : 280.94
SMILES Code : COC1=CC=C(Br)C(CBr)=N1
MDL No. :MFCD16607609

Safety of [ 156094-64-3 ]

GHS Pictogram:
Signal Word:Danger
Hazard Statements:H301-H311-H331-H341
Precautionary Statements:P201-P202-P261-P264-P270-P271-P280-P302+P352-P304+P340-P308+P313-P310-P330-P361-P403+P233-P405-P501
Class:6.1
UN#:2810
Packing Group:

Application In Synthesis [ 156094-64-3 ]

* 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 [ 156094-64-3 ]

[ 156094-64-3 ] Synthesis Path-Downstream   1~2

  • 1
  • [ 126717-59-7 ]
  • [ 156094-64-3 ]
  • 3-bromo-2-(dibromomethyl)-6-methoxypyridine [ No CAS ]
YieldReaction ConditionsOperation in experiment
With N-Bromosuccinimide; 2,2'-azobis(isobutyronitrile); acetic acid; In tetrahydrofuran; for 12h;Reflux; The compound <strong>[126717-59-7]3-bromo-6-methoxy-2-methylpyridine</strong> (15 g, 0.076 mol), N-bromosuccinimide (40 g, 0.22 mol),Tetrahydrofuran (100 mL), acetic acid (7.5 mL),Azobisisobutyronitrile (0.45 g, 2.7 mmol) was added to a 500 ml single-mouth flask equipped with a reflux apparatus, and the reaction system was heated to reflux for 12 hours.Cool to room temperature and add ethyl acetate (150 mL).Adjust the pH to about 8 with a saturated aqueous solution of sodium bicarbonate (40 mL).The organic phase was washed with saturated brine (30 mL) and dried over anhydrous sodium sulfate.Dry to give a clear oily mixture of compound 3-bromo-2-(dibromomethyl)-6-methoxypyridine and 3-bromo-2-(bromomethyl)-6-methoxypyridine (26 g ),Used directly in the next step.
  • 2
  • [ 126717-59-7 ]
  • [ 156094-64-3 ]
YieldReaction ConditionsOperation in experiment
15.5 g The compound <strong>[126717-59-7]3-bromo-6-methoxy-2-methylpyridine</strong> (15 g, 0.076 mol), N-bromosuccinimide (40 g, 0.22 mol),Tetrahydrofuran (100 mL), acetic acid (7.5 mL),Azobisisobutyronitrile (0.45 g, 2.7 mmol) was added to a 500 ml single-mouth flask equipped with a reflux apparatus, and the reaction system was heated to reflux for 12 hours.Cool to room temperature and add ethyl acetate (150 mL).Adjust the pH to about 8 with a saturated aqueous solution of sodium bicarbonate (40 mL).The organic phase was washed with saturated brine (30 mL) and dried over anhydrous sodium sulfate.Dry to give a clear oily mixture of compound 3-bromo-2-(dibromomethyl)-6-methoxypyridine and 3-bromo-2-(bromomethyl)-6-methoxypyridine (26 g ),Used directly in the next step.3-Bromo-2-(dibromomethyl)-6-methoxypyridine in sequence at room temperaturea mixture with 3-bromo-2-(bromomethyl)-6-methoxypyridine (26 g),Anhydrous tetrahydrofuran (100 mL), N,N-diisopropylethylamine(25.8 mL, 0.19 moL), added to a 500 ml three-neck bottle,Nitrogen protection, cooling to 0 C, diethyl phosphite(18.6 mL, 0.14 mol) was added dropwise to the reaction system.After completion, the reaction solution was stirred at normal temperature for 12 hours.Ethyl acetate (200 mL) was added to the reaction system.Wash twice with saturated brine (20 mL) and dry over anhydrous sodium sulfate.Spin dry, pass through the column (petroleum ether (v) / ethyl acetate (v) = 50:1)3-bromo-2-(bromomethyl)-6-methoxypyridine (15.5 g, two-step yield: 77%)Transparent oil.
 

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