Action of Diazo�n�octane on Carboxylic acid chloride having two different sites of reactivity

DEVENDRA KUMAR GANGWAR; A.K. AGARWAL

Volume : VI, Issue : VI, June - 2016

Action of Diazo�n�octane on Carboxylic acid chloride having two different sites of reactivity

Devendra Kumar Gangwar, A. K. Agarwal

Abstract :

 The reaction of 2–methyl acryloyl chloride (1 mol) with diazo–n–octane (2 and 3 mols) gave a mixture of 1–diazo–1–n–heptyl 3–methyl but 3–en 2–one (I) and 3–methyl 3–n–heptyl 1–diazoacetyl 5–n–heptyl pyrazoline (II) respectively in dry ether at 00 C. 2–methyl acryloyl chloride contained two sites of reactivity, an olefinic bond and an acid chloride group. The reactivity of diazoalkanes towards 2–methyl acryloyl chloride is mainly due to the diazogroup present in them. The diazoketones were charactrized by various physico–chemical techniques.