Issue 82, 2016

Green synthesis of tetrahydrobenzo[b]pyrans, pyrano[2,3-c]pyrazoles and spiro[indoline-3,4′-pyrano[2,3-c]pyrazoles catalyzed by nano-structured diphosphate in water

Abstract

A green and recoverable nano-structured diphosphate (Na2CaP2O7) was synthesized and fully characterized using FT-IR spectra, X-ray diffraction patterns (XRD), scanning electron microscopy (SEM), and energy-dispersive X-ray spectroscopy (EDX) analysis. The nanostructured catalyst has been successfully used as reusable nanostructured catalyst for green, simple and efficient synthesis of tetrahydrobenzo[b]pyrans, pyrano[2,3-c]pyrazoles and spiro[indoline-3,4′-pyrano[2,3-c]pyrazoles in aqueous media. The catalyst shows environmentally benign character, which can be easily prepared, stored, and recovered several times without obvious significant loss of catalytic activity.

Graphical abstract: Green synthesis of tetrahydrobenzo[b]pyrans, pyrano[2,3-c]pyrazoles and spiro[indoline-3,4′-pyrano[2,3-c]pyrazoles catalyzed by nano-structured diphosphate in water

Supplementary files

Article information

Article type
Paper
Submitted
17 6月 2016
Accepted
05 8月 2016
First published
16 8月 2016

RSC Adv., 2016,6, 79128-79134

Green synthesis of tetrahydrobenzo[b]pyrans, pyrano[2,3-c]pyrazoles and spiro[indoline-3,4′-pyrano[2,3-c]pyrazoles catalyzed by nano-structured diphosphate in water

B. Maleki, N. Nasiri, R. Tayebee, A. Khojastehnezhad and H. A. Akhlaghi, RSC Adv., 2016, 6, 79128 DOI: 10.1039/C6RA15800E

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