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New fluorescent probes based on 3-(2-benzoxazol-5-yl)alanine skeleton—Synthesis and photophysical properties

Paper ID Volume ID Publish Year Pages File Format Full-Text
29331 44154 2007 10 PDF Available
Title
New fluorescent probes based on 3-(2-benzoxazol-5-yl)alanine skeleton—Synthesis and photophysical properties
Abstract

N-(tert-butoxycarbonyl)-3-(benzoxazol-5-yl)alanine methyl ester derivatives substituted in position 2 by heterocyclic group were synthesized and their photophysical properties in methanol, acetonitrile and methylcyclohexane were studied by means of absorption and fluorescence spectroscopies. The positions of their emission bands depend on the solvent polarity and are shifted to longer wavelengths in more polar solvents as a result of a charge transfer from a substituent to the benzoxazole moiety. High molar absorption coefficient values and fluorescence quantum yields are characteristic for most of the compounds studied making them efficient fluorescent probes. Moreover, the presence of additional heteroatom in the substituent enables those compounds to act as chemosensors for metal ions or protons.

Keywords
Benzoxazol-5-yl-alanine; Unnatural amino acid; Fluorescence; Absorption; Chemosensor
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New fluorescent probes based on 3-(2-benzoxazol-5-yl)alanine skeleton—Synthesis and photophysical properties
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology A: Chemistry - Volume 187, Issue 1, 5 March 2007, Pages 87–96
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
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