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Silica-based helical rod supporting guanosine compounds catalyzed asymmetric hetero-Diels–Alder reaction

Paper ID Volume ID Publish Year Pages File Format Full-Text
49868 46770 2015 6 PDF Available
Title
Silica-based helical rod supporting guanosine compounds catalyzed asymmetric hetero-Diels–Alder reaction
Abstract

•Silica-based helical rods were prepared under chiral sodium lactate in sol–gel.•Helical rod had a hierarchical structure including morphology and internal channel.•Configuration of internal channel of helical supports was all right-handed.•Guanosine derivatives show catalytic activity in hetero-Diels–Alder reaction.•Helical rod supporting guanosine catalyzed chiral hetero-Diels–Alder reaction.

A series of silica-based helical rods were prepared and functionalized for immobilization of guanosine compounds in catalytic asymmetric hetero-Diels–Alder reaction. Nitrogen physisorption, electron microscopy and amino acid adsorption revealed that helical rod has a hierarchical structure including morphology and internal channels, and doping of sodium lactate facilitates porosity and internal chirality of synthetic rods. Catalysis revealed that guanosine derivatives were catalytically active, combination of guanosine with L-sodium lactate-doped rod was more enantioselective than that with zero- or D-sodium lactate-doped samples, and recycling of supported Schiff-base-guanosine was stable during six cycles.

Keywords
Helical rod; Internal channel; Guanosine; Immobilization; Hetero-Diels–Alder
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Silica-based helical rod supporting guanosine compounds catalyzed asymmetric hetero-Diels–Alder reaction
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 64, 5 April 2015, Pages 6–11
Authors
, , , , , , ,
Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
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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