“ An improved process for the preparation of malononitrile”
Application 1106/DEL/2001 published 2006-06-09, filed 2001-10-31
The present invention relates to an improved process for the preparation of malononitrile from cyanoacetamide. This invention particularly relates to an eco-friendly process for the synthesis of malononitrile from cyanoacetamide by using POCL3 as the dehydrating agent, pyridine or an organic amine as catalyst and dispensing the use of solid absorbent, which replaces inorganic salt, to reduce polymerization of meta – phosphoric acid by-product.
Applicant
Council of Scientific &Industrial Research.
Rafi Marg, new Delhi – 110001.
Inventor
Ananda Kumar Bandyopadhyay Khathija Azia, Pravin Raybaji Likhar,’ Boyapati Manorajan Choudary.
International Info
Classification: C07C 253/20