2-Chloropyridine

[109-09-1] C5H4NCl (MW 113.55) InChI = 1S/C5H4ClN/c6-5-3-1-2-4-7-5/h1-4H InChIKey = OKDGRDCXVWSXDC-UHFFFAOYSA-N (generally used as an organic base additive and as a coupling partner in metal-catalyzed cross-coupling transformations) Alternate Names: o-chloropyridine; α-chloropyridine; pyridyl chloride; chloropyridine. Physical Data: bp 166 °C at 714 mmHg, colorless liquid with a pungent odor, density 1.2 g mL−1 at 25 °C, carcinogenic. Solubility: soluble in most organic solvents. Form Supplied in: >99% pure (Aldrich) liquid. Preparative Methods: the reagent is prepared via direct chlorination of pyridine or chlorination of pyridine N-oxide.