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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Estudos sobre a síntese de derivados do tipo benzoclorinas / Studies about the synthesis of benzochlorins derivatives

Souza, Juliana Maria de 18 February 2016 (has links)
Submitted by Livia Mello (liviacmello@yahoo.com.br) on 2016-09-23T13:27:37Z No. of bitstreams: 1 DissJMS.pdf: 10881423 bytes, checksum: 0860f06f2bf6813393a1d8e8c3c53534 (MD5) / Approved for entry into archive by Marina Freitas (marinapf@ufscar.br) on 2016-10-10T14:37:27Z (GMT) No. of bitstreams: 1 DissJMS.pdf: 10881423 bytes, checksum: 0860f06f2bf6813393a1d8e8c3c53534 (MD5) / Approved for entry into archive by Marina Freitas (marinapf@ufscar.br) on 2016-10-10T14:37:34Z (GMT) No. of bitstreams: 1 DissJMS.pdf: 10881423 bytes, checksum: 0860f06f2bf6813393a1d8e8c3c53534 (MD5) / Made available in DSpace on 2016-10-10T14:37:40Z (GMT). No. of bitstreams: 1 DissJMS.pdf: 10881423 bytes, checksum: 0860f06f2bf6813393a1d8e8c3c53534 (MD5) Previous issue date: 2016-02-18 / Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) / Herein, studies about the synthesis of new benzochlorin derivatives were carried out aiming at the preparation of compounds with special photophysical properties, such absorption bands between the visible and near infrared region. The main synthetic approach was planned to start from the formylated pyrrole (i) in order to obtain the compound (ii) as a precursor for the synthesis of chlorins. Subsequent oxidation was also planned to give the corresponding benzochlorins (iii) (Scheme iv)... continua no texto / Neste trabalho foram realizados alguns estudos visando a síntese de novos derivados do tipo benzoclorinas contendo bandas de absorção entre as regiões do visível e infravermelho próximo. A principal abordagem sintética adotada consistiu em se utilizar o pirrol formilado (i), o qual seria empregado na síntese do composto (ii), possibilitando, assim, a formação de clorinas devidamente preparadas para oxidação e obtenção dos compostos desejados (iii) (Esquema i)... continua no texto

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