Affordable Access

Publisher Website

Phosphoric acid modified SBA-15 as a highly efficient heterogeneous catalyst for the synthesis of 4,4′-diamino-3,3′-dibutyl-diphenyl methane

Authors
Publisher
Elsevier B.V.
Publication Date
Volume
11
Issue
5
Identifiers
DOI: 10.1016/j.catcom.2009.11.018
Keywords
  • Heterogeneous Catalysis
  • P/Sba-15
  • 4
  • 4′-Diamino-3
  • 3′-Dibutyl-Diphenyl Methane

Abstract

Abstract Phosphoric acid modified SBA-15 (P/SBA-15) was employed as catalyst in the synthesis of 4,4′-diamino-3,3′-dibutyl-diphenyl methane (MBTBA) via condensation of o-tert-butylaniline with paraformaldehyde. It performed more efficiently than HY, kaolinite, γ-Al 2O 3 in heterogeneous reaction and HCl in homogeneous catalysis did. The catalyst preparation and reaction conditions were investigated and the yield reached 50% under the optimized term. The BET and Py-FTIR results suggested that the excellent performance of P/SBA-15 in the synthesis of MBTBA should be attributed to the weak acidity of the material and its large pore size that facilitated the diffusion of substrate and product.

There are no comments yet on this publication. Be the first to share your thoughts.