Issue 23, 2015
From the journal:

RSC Advances

Ordered short channel mesoporous silica modified with 1,3,5-triazine–piperazine as a versatile recyclable basic catalyst for cross-aldol, Knoevenagel and conjugate addition reactions with isatins†

Naveen Gupta,ab   Tamal Roy,a   Debashis Ghosh,ab   Sayed H. R. Abdi,*ab   Rukhsana I. Kureshy,ab   Noor-ul H. Khanab  and  Hari C. Bajajab  

* Corresponding authors

a Discipline of Inorganic Materials and Catalysis, CSIR-Central Salt and Marine Chemicals Research Institute (CSIR-CSMCRI), G. B. Marg, Bhavnagar-364 002, Gujarat, India
E-mail: shrabdi@csmcri.org
Fax: +91 0278 2566970

b Academy of Scientific and Innovative Research, CSIR-Central Salt and Marine Chemicals Research Institute (CSIR-CSMCRI), G. B. Marg, Bhavnagar-364 002, Gujarat, India

Abstract

A triazine–piperazine immobilized on ordered short channel mesoporous silica was synthesized, characterized and used as a heterogeneous basic catalyst in the synthesis of indole skeletal structures from isatin derivatives under ambient reaction conditions in good to excellent isolated yields. The catalyst showed no loss in its efficacy over 10 recycle experiments.

Graphical abstract: Ordered short channel mesoporous silica modified with 1,3,5-triazine–piperazine as a versatile recyclable basic catalyst for cross-aldol, Knoevenagel and conjugate addition reactions with isatins

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Article information

DOI
https://doi.org/10.1039/C5RA00406C
Article type
Paper
Submitted
08 Jan 2015
Accepted
04 Feb 2015
First published
05 Feb 2015

RSC Adv., 2015,5, 17843-17850

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Ordered short channel mesoporous silica modified with 1,3,5-triazine–piperazine as a versatile recyclable basic catalyst for cross-aldol, Knoevenagel and conjugate addition reactions with isatins

N. Gupta, T. Roy, D. Ghosh, S. H. R. Abdi, R. I. Kureshy, N. H. Khan and H. C. Bajaj, RSC Adv., 2015, 5, 17843 DOI: 10.1039/C5RA00406C

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