Lewis acid type promoted MCM-41@SnPr-DABCO-H: a robust, metal-free and reusable nanocatalyst for clean in situ synthesis of CH-tetrazoles

New nanocatalyst Lewis acid type promoted MCM-41@silyl- n -propyl modified 1,4-diazabicyclo[2.2.2]octane (MCM-41@S n Pr-DABCO-H) as an effective, metal-free and heterogeneous reusable nanocatalyst was synthesized and characterized by FT-IR, SEM, TEM, EDS, XRD, TGA-DTG and Brunauer–Emmett–Teller (BET...

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Bibliographic Details
Published inJournal of porous materials Vol. 31; no. 3; pp. 855 - 867
Main Authors Rafiei Lak, Paria, Noroozi Pesyan, Nader
Format Journal Article
LanguageEnglish
Published New York Springer US 01.06.2024
Springer Nature B.V
Subjects
Aniline
Catalysis
Characterization and Evaluation of Materials
Chemistry
Chemistry and Materials Science
Fourier transforms
Infrared spectroscopy
Lewis acid
NMR spectroscopy
Physical Chemistry
Sodium azides
Tetrazoles
Lewis acid
Nanocatalyst
Metal-free
MCM-41@S
CH-tetrazole
Pr-DABCO-H
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Summary:New nanocatalyst Lewis acid type promoted MCM-41@silyl- n -propyl modified 1,4-diazabicyclo[2.2.2]octane (MCM-41@S n Pr-DABCO-H) as an effective, metal-free and heterogeneous reusable nanocatalyst was synthesized and characterized by FT-IR, SEM, TEM, EDS, XRD, TGA-DTG and Brunauer–Emmett–Teller (BET) techniques. This nanocatalyst was used in the clean synthesis of various CH-tetrazoles in moderate to high yields. The CH-tetrazoles were synthesized by the one-pot reaction of triethyl orthoformate, aniline derivatives and sodium azide in the presence of catalytic amount of nanocatalyst. CH-tetrazole structures were characterized and confirmed by FT-IR, 1 H and 13 C NMR spectroscopy techniques.
ISSN:1380-2224
1573-4854
DOI:10.1007/s10934-023-01552-x