REGIOSELECTIVE CYANATION OF 3-SUBSTITUTED PYRIDINE 1-OXIDES
Cyanation of 3-X-pyridine 1-oxides with trimethylsilanecarbonitrile and dimethylcarbamoyl chloride occurs quantitatively to give 3-X-pyridinecarbonitriles in > 90percent isolated yields when X = -CH3, -OCH3, -OH and -Cl, and approximately equal amounts of the 3- and 5-X derivatives when X = -CN and -COOCH3.
Fife, Wilmer K.
p. 93 - 96
(2007/10/02)
Trimethylsilanol as Leaving Group; III. A Simple One-Step Conversion of Aromatic Heterocyclic N-Oxides to α-Cyano Aromatic N-Heterocycles
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Vorbrueggen, Helmut,Krolikiewicz, Konrad
p. 316 - 319
(2007/10/02)
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