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Binary conjugate Brønsted–Lewis acid supported on mesoporous silica nanoparticles for the domino addition/elimination/addition and addition/elimination/addition/cyclization cascade

Paper ID Volume ID Publish Year Pages File Format Full-Text
50436 46794 2014 6 PDF Available
Title
Binary conjugate Brønsted–Lewis acid supported on mesoporous silica nanoparticles for the domino addition/elimination/addition and addition/elimination/addition/cyclization cascade
Abstract

•Synthesis of 25–30 nm size mesoporous silica nanoparticle supported HBF4 catalyst•Clean and rapid synthesis of tetraketones or the enol forms at room temperature•Conversion of tetraketones to xanthenes

Fluoroboric acid (HBF4) adsorbed on mesoporous silica nanoparticles of 25–30 nm dimension was synthesized and characterized by N2 adsorption, HRTEM, EDX, XPS, XRD, 29Si MAS NMR etc. The applicability of silica-HBF4 was probed through a library synthesis of tetraketones or their tautomeric enol forms. These tetraketones are further transformed into xanthenes. Synthesis using aqueous-ethanol is of paramount importance for its sustainable green impact.

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Keywords
Mesoporous silica nanoparticle; Conjugate Brønsted–Lewis acid; Tetraketones; Xanthenes
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Binary conjugate Brønsted–Lewis acid supported on mesoporous silica nanoparticles for the domino addition/elimination/addition and addition/elimination/addition/cyclization cascade
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 43, 5 January 2014, Pages 173–178
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us