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Organocatalyst trityl chloride efficiently promoted the solvent-free synthesis of 12-aryl-8,9,10,12-tetrahydrobenzo[a]-xanthen-11-ones by in situ formation of carbocationic system in neutral media

Paper ID Volume ID Publish Year Pages File Format Full-Text
50779 46813 2012 4 PDF Available
Title
Organocatalyst trityl chloride efficiently promoted the solvent-free synthesis of 12-aryl-8,9,10,12-tetrahydrobenzo[a]-xanthen-11-ones by in situ formation of carbocationic system in neutral media
Abstract

A highly efficient and novel procedure for the preparation of 12-aryl-8,9,10,12-tetrahydrobenzo[a]-xanthen-11-one derivatives via the one-pot three-component condensation of 2-naphthol with arylaldehydes and dimedone in the presence of catalytic amount of trityl chloride (TrCl) as a homogeneous organocatalyst under natural and solvent-free conditions is described. It is interesting that TrCl by in situ formation of trityl carbocation with inherent instability catalyzes the reaction.

Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slideHighlights► Introducing an efficient method for synthesis of xanthene derivatives. ► The use of trityl chloride as a non-acidic and homogeneous organocatalyst. ► In situ formation of carbocationic system in neutral media to catalyze reaction. ► Application of solvent-free conditions in reaction.

Keywords
Trityl chloride; Organocatalyst; Multi-component reaction; Solvent free; 12-aryl-8,9,10,12-tetrahydrobenzo[a]-xanthen-11-one
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Organocatalyst trityl chloride efficiently promoted the solvent-free synthesis of 12-aryl-8,9,10,12-tetrahydrobenzo[a]-xanthen-11-ones by in situ formation of carbocationic system in neutral media
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 20, 5 April 2012, Pages 54–57
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