Issue 12, 2015

Efficient solvent free synthesis of tertiary α-aminophosphonates using H2Ti3O7 nanotubes as a reusable solid-acid catalyst

Abstract

In this paper, TiO2 fine particles, TiO2-P25, protonated trititanate (H2Ti3O7) nanorods and nanotubes were used as recyclable solid-acid catalysts for the solvent free synthesis of tertiary α-aminophosphonates through Kabachnik–Fields reaction. Among them, H2Ti3O7 nanotubes showed remarkable catalytic performance and it was due to strong and sufficient Lewis and Brønsted acid sites on a large nanotubular surface. More importantly, for the first time we reported some novel 5,8-dioxa-10-azadispiro[2.0.4.3]undecane bearing tertiary α-aminophosphonates.

Graphical abstract: Efficient solvent free synthesis of tertiary α-aminophosphonates using H2Ti3O7 nanotubes as a reusable solid-acid catalyst

Supplementary files

Article information

Article type
Paper
Submitted
23 Jul 2015
Accepted
29 Sep 2015
First published
30 Sep 2015

New J. Chem., 2015,39, 9605-9610

Efficient solvent free synthesis of tertiary α-aminophosphonates using H2Ti3O7 nanotubes as a reusable solid-acid catalyst

B. Rajendra Prasad Reddy, P. Vasu Govardhana Reddy and B. N. Reddy, New J. Chem., 2015, 39, 9605 DOI: 10.1039/C5NJ01914A

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