Ethyl 3-bromo-1-(3-chloro-pyridin-2-yl)-1H-pyrazole-5-carboxyl-ate

Acta Crystallogr Sect E Struct Rep Online. 2008 Dec 13;65(Pt 1):o95. doi: 10.1107/S1600536808039329.

Abstract

The title compound, C(11)H(9)BrClN(3)O(2), is an inter-mediate in the synthesis of Rynaxypyre, a new insecticidal anthranilic diamide used as a potent and selective ryanodine receptor activator. The dihedral angle between the aromatic ring planes is 78.7 (2)°.