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Semisynthesis and photophysical properties of pyrrolic betalains

Grant number: 15/25378-1
Support type:Scholarships in Brazil - Scientific Initiation
Effective date (Start): April 01, 2016
Effective date (End): March 31, 2017
Field of knowledge:Physical Sciences and Mathematics - Chemistry - Organic Chemistry
Principal researcher:Erick Leite Bastos
Grantee:Talita Sertório Teixeira
Home Institution: Instituto de Química (IQ). Universidade de São Paulo (USP). São Paulo , SP, Brazil
Associated research grant:14/22136-4 - Use of green solvents and their mixtures for optimizing chemical processes, AP.TEM

Abstract

In this project it is proposed the convertion of betalamic acid in pyrrolic bethalains and determination of the effects of structural changes in photophysical properties of these betalains. It will be used four pyrrols containing substituents in positions 1(N) and 2 for pyrrolic bethalain semisynthesis, allowing caracterization of coupling throw nitrogen or alpha-carbon. All the obtained compounds will be characterized in terms of their structures, photophysical properties (maximum absorbance and fluorescence wavelenght, Stokes shift, singlet energy, fluorescence quantum yield and fluorescence half-life) and thermic stability chacterized in different polar solvents.

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