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ChemicalBook CAS DataBase List 2-CHLORO-5,6-DIMETHYL-3-PYRIDINCARBONITRILE

2-CHLORO-5,6-DIMETHYL-3-PYRIDINCARBONITRILE synthesis

3synthesis methods
-

Yield:65176-93-4 71%

Reaction Conditions:

with trichlorophosphate for 8 h;Heating;

Steps:

5,6-Dimethyl-2-chloro-3-cyanopyridine (III).

Amixture of 1.5 g (0.01 mol) of compound (II) and35 mL of phosphorus oxychloride was heated in aboiling water bath for 8 h. Then the excess of phosphorusoxychloride was distilled off in vacuum, the residuewas alkalized with an aqueous solution of NaOHunder cooling with ice water, the precipitated crystalswere filtered off, washed with water, recrystallizedfrom a CHCl3-EtOH mixture (3 : 1). Yield 71%, mp100-101°C.

References:

Baghdasaryan, M. R.;Dabaeva, V. V.;Dashyan, Sh. Sh.;Hakobyan, H. G.;Hunanyan, L. S.;Nazaryan, I. M.;Paronikyan, E. G.;Paronikyan, R. G. [Russian Journal of Bioorganic Chemistry,2022,vol. 48,# 1,p. 125 - 134][Bioorg. Khim.,2022,vol. 48,# 1,p. 87 - 97]

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