3KYUNNARUKENIRUKARUBONSANAMIDORUINOSEIZOYOSHOKUBAIOYOBI3KYUNNARUKENIRUKARUBONSANAMIDORUINOSEIZOHOHO

摘要

PURPOSE: To continuously and efficiently produce tert. N-alkenylcarboxylic acid amide from tert. N-(2-hydroxyalkyl)carboxylic acid amide without using any subsidiary starting material. CONSTITUTION: When tert. N-(2-hydroxyalkyl)carboxylic acid amide is brought into a vapor phase intramolecular dehydration reaction to produce the objective tert. N-alkenylcarboxylic acid amide, a catalyst made of an oxide contg. an alkali metal and/or an alkaline earth metal and silicon is used.