T. Okuhara, Xin Chen, H. Matsuda
Aug 28, 2000
Citations
0
Influential Citations
17
Citations
Journal
Applied Catalysis A-general
Abstract
Abstract Catalytic synthesis of N -alkylacrylamides, which are useful monomers for functional polymers, from acrylonitrile and alcohols, such as 1-adamantanol, tert -butyl alcohol, and isopropyl alcohol has been studied using various solid acids including heteropoly compounds and zeolites. For the reaction with 1-adamantanol or tert -butyl alcohol, a heteropoly compound, Cs 2.5 H 0.5 PW 12 O 40 , exhibited a high catalytic performance and water-tolerance. On the other hand, for the synthesis of N -isopropylacrylamide from isopropyl alcohol, a high-silica zeolite, H-ZSM-5 with Si/Al ratio of 37, showed an exceptionally high activity, while it was less active in the reaction with tert -butyl alcohol or 1-adamantanol. This marked effect of reactant alcohol observed for H-ZSM-5 is probably due to shape selectivity. The prominent performance for N -isopropylacrylamide synthesis is attributable to a steric effect of the constrained pores; two reactants might be arranged adequately to form an intermediate in the pores.