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[ CAS No. 138642-40-7 ] {[proInfo.proName]}

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Type HazMat fee for 500 gram (Estimated)
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Chemical Structure| 138642-40-7
Chemical Structure| 138642-40-7
Structure of 138642-40-7 * Storage: {[proInfo.prStorage]}
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Product Details of [ 138642-40-7 ]

CAS No. :138642-40-7 MDL No. :MFCD10566526
Formula : C8H7Cl2NO2 Boiling Point : -
Linear Structure Formula :- InChI Key :-
M.W : 220.05 Pubchem ID :-
Synonyms :

Safety of [ 138642-40-7 ]

Signal Word:Danger Class:6.1
Precautionary Statements:P261-P264-P270-P271-P280-P302+P352-P304+P340-P310-P330-P361-P403+P233-P405-P501 UN#:2811
Hazard Statements:H301-H311-H331 Packing Group:
GHS Pictogram:

Application In Synthesis of [ 138642-40-7 ]

* 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 [ 138642-40-7 ]

[ 138642-40-7 ] Synthesis Path-Downstream   1~1

  • 1
  • [ 138642-40-7 ]
  • [ 91591-72-9 ]
  • [ 374800-25-6 ]
YieldReaction ConditionsOperation in experiment
To a stirred solution of methyl 2,4-dichloro-6-methylnicotinate (45g, 0.19 mol) in dry CH2CI2 (450 ml.) was added DIBAL-H (1 M solution in toluene) (576 mL, 0.57 mol) at -78 C over a period of 30 minutes. The stirring was continued for another 2 h at -78 C. The reaction mixture was quenched with saturated NH4CI solution (100 mL) at the same temperature and allowed to warm to room temperature. The reaction mixture was diluted with 0.2 N HCI solution (1000 mL), extracted with CH2CI2 (3 x 500 mL), the combined organics were washed with H20 (2 x 200 mL), brine solution (2 x 250 mL), dried (Na2S04) and concentrated. The crude compound was purified by flash column chromatography (silica gel, 100-200 mesh) and the desired aldehyde (XX) eluted with 5% EtOAc-pet ether to afford 16 g as an off-white solid. Rf: 0.6 (20% EtOAc/pet ether). (2,4-dichloro-6- methylpyridin-3-yl)methanol was eluted at 15% EtOAc-pet ether to afford 15g as an off- white solid. Rf: 0.25 (20% EtOAc/pet ether), over all yield (31 g, 84%).
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