Luiz Claudio Almeida Barbosa

Summary

Country: Brazil

Publications

  1. doi request reprint Synthesis of rubrolide analogues as new inhibitors of the photosynthetic electron transport chain
    Luiz C A Barbosa
    Department of Chemistry, Federal University of Vicosa, Avenida P H Rolfs, CEP 36570 000 Viçosa, MG, Brazil
    J Agric Food Chem 60:10555-63. 2012
  2. doi request reprint Exposure to Anacardiaceae volatile oils and their constituents induces lipid peroxidation within food-borne bacteria cells
    Ricardo M Montanari
    Department of Chemistry, Federal University of de Viçosa, Vicosa 36570 000, MG, Brazil
    Molecules 17:9728-40. 2012
  3. ncbi request reprint Synthesis of new aliphatic and aromatic phytotoxic derivatives of 2alpha,4alpha-dimethyl-8-oxabicyclo[3.2.1]oct-6-en-3-one
    Luiz C de A Barbosa
    Departamento de Quimica, Universidade Federal de Vicosa, 36571 000, Vicosa MG, Brazil
    Pest Manag Sci 59:1043-51. 2003
  4. doi request reprint Synthesis and biological evaluation of 2,5-bis(alkylamino)-1,4-benzoquinones
    Luiz Claudio Almeida Barbosa
    Department of Chemistry, Federal University of Viçosa Av P H Rolfs, Vicosa, MG, Brazil
    Molecules 15:5629-43. 2010
  5. doi request reprint Synthesis and biological evaluation of new ozonides with improved plant growth regulatory activity
    Luiz C A Barbosa
    Department of Chemistry, ederal University of Vic osa, Avenida P H Rolfs, CEP 36570 000, Vic osa, MG, Brazil
    J Agric Food Chem 57:10107-15. 2009
  6. doi request reprint Synthesis and phytogrowth properties of oxabicyclic analogues related to helminthosporin
    Luiz Claudio Almeida Barbosa
    Department of Chemistry, Federal University of Vicosa, 36570 000, Vicosa, Minas Gerais, Brazil
    Molecules 14:160-73. 2009
  7. doi request reprint Synthesis and phytotoxic activity of ozonides
    Luiz C A Barbosa
    Department of Chemistry, Federal University of Vicosa, Avenida P H Rolfs, CEP 36570 000, Vicosa, MG, Brazil
    J Agric Food Chem 56:9434-40. 2008
  8. ncbi request reprint Evaluation of the chemical composition of Brazilian commercial Cymbopogon citratus (D.C.) stapf samples
    Luiz Claudio Almeida Barbosa
    Department of Chemistry, Federal University of Vicosa, 36570 000, Vicosa, Minas Gerais, Brazil
    Molecules 13:1864-74. 2008
  9. ncbi request reprint Synthesis of new phytogrowth-inhibitory substituted aryl-p-benzoquinones
    Luiz Cláudio de Almeida Barbosa
    Departamento de Quimica, Universidade Federal de Vicosa, 36571 000, Vicosa MG, Brazil
    Chem Biodivers 3:553-67. 2006
  10. ncbi request reprint Phytogrowth-inhibitory lactones derivatives of glaucolide B
    Luiz Claúdio de A Barbosa
    Departamento de Quimica, Universidade Federal de Vicosa, 36571 000 Vicosa, MG, Brazil
    Z Naturforsch C 59:803-10. 2004

Collaborators

Detail Information

Publications20

  1. doi request reprint Synthesis of rubrolide analogues as new inhibitors of the photosynthetic electron transport chain
    Luiz C A Barbosa
    Department of Chemistry, Federal University of Vicosa, Avenida P H Rolfs, CEP 36570 000 Viçosa, MG, Brazil
    J Agric Food Chem 60:10555-63. 2012
    ..The results obtained suggest that the rubrolide analogues represent promising candidates for the development of new active principles targeting photosynthesis to be used as herbicides...
  2. doi request reprint Exposure to Anacardiaceae volatile oils and their constituents induces lipid peroxidation within food-borne bacteria cells
    Ricardo M Montanari
    Department of Chemistry, Federal University of de Viçosa, Vicosa 36570 000, MG, Brazil
    Molecules 17:9728-40. 2012
    ..The results suggest that one putative mechanism of antibacterial action of these volatile oils is pro-oxidant damage within bacterial cell membrane explaining in part their preservative properties...
  3. ncbi request reprint Synthesis of new aliphatic and aromatic phytotoxic derivatives of 2alpha,4alpha-dimethyl-8-oxabicyclo[3.2.1]oct-6-en-3-one
    Luiz C de A Barbosa
    Departamento de Quimica, Universidade Federal de Vicosa, 36571 000, Vicosa MG, Brazil
    Pest Manag Sci 59:1043-51. 2003
    ..5 microg g(-1), on the development of radicle and aerial parts of Sorghum bicolor (L) Moench, Euphorbia heterophylla L, Brachiaria decumbens and Desmodium tortuosum DC was evaluated...
  4. doi request reprint Synthesis and biological evaluation of 2,5-bis(alkylamino)-1,4-benzoquinones
    Luiz Claudio Almeida Barbosa
    Department of Chemistry, Federal University of Viçosa Av P H Rolfs, Vicosa, MG, Brazil
    Molecules 15:5629-43. 2010
    ..Compound 12 was the most active, displaying cytotoxicity against all cancer cell lines tested...
  5. doi request reprint Synthesis and biological evaluation of new ozonides with improved plant growth regulatory activity
    Luiz C A Barbosa
    Department of Chemistry, ederal University of Vic osa, Avenida P H Rolfs, CEP 36570 000, Vic osa, MG, Brazil
    J Agric Food Chem 57:10107-15. 2009
    ..Compared to ozonides previously synthesized in our laboratory, the new ozonides described herein present improved plant growth regulatory activity...
  6. doi request reprint Synthesis and phytogrowth properties of oxabicyclic analogues related to helminthosporin
    Luiz Claudio Almeida Barbosa
    Department of Chemistry, Federal University of Vicosa, 36570 000, Vicosa, Minas Gerais, Brazil
    Molecules 14:160-73. 2009
    ..In both species, the most active compounds were oxabicycles possessing a carbonyl group conjugated with a double bond...
  7. doi request reprint Synthesis and phytotoxic activity of ozonides
    Luiz C A Barbosa
    Department of Chemistry, Federal University of Vicosa, Avenida P H Rolfs, CEP 36570 000, Vicosa, MG, Brazil
    J Agric Food Chem 56:9434-40. 2008
    ..The most active compounds were also tested against the weed species Ipomoea grandifolia and Brachiaria decumbens. To the best of our knowledge, this is the first article describing ozonides as potential herbicides...
  8. ncbi request reprint Evaluation of the chemical composition of Brazilian commercial Cymbopogon citratus (D.C.) stapf samples
    Luiz Claudio Almeida Barbosa
    Department of Chemistry, Federal University of Vicosa, 36570 000, Vicosa, Minas Gerais, Brazil
    Molecules 13:1864-74. 2008
    ..The process of grinding the leaves significantly decreased (by up to 68%) the essential oil content, as well as the percentage of myrcene in the oils...
  9. ncbi request reprint Synthesis of new phytogrowth-inhibitory substituted aryl-p-benzoquinones
    Luiz Cláudio de Almeida Barbosa
    Departamento de Quimica, Universidade Federal de Vicosa, 36571 000, Vicosa MG, Brazil
    Chem Biodivers 3:553-67. 2006
    ....
  10. ncbi request reprint Phytogrowth-inhibitory lactones derivatives of glaucolide B
    Luiz Claúdio de A Barbosa
    Departamento de Quimica, Universidade Federal de Vicosa, 36571 000 Vicosa, MG, Brazil
    Z Naturforsch C 59:803-10. 2004
    ..multiflorum. It seems that the diol function is required in lactones 4-6 to increase the activity, the polarity in the molecule might be required to reach its target...
  11. ncbi request reprint Phytogrowth- and photosynthesis-inhibiting properties of nostoclide analogues
    Luiz Ca Barbosa
    Departamento de Quimica, Universidade Federal de Vicosa, 36571 000 Vicosa, MG, Brazil
    Pest Manag Sci 62:214-22. 2006
    ..Thus 5e behaved as a weak Hill reaction inhibitor and an uncoupler. In general, the phytotoxicity of the synthetic lactones was only weakly related to inhibition of photosynthesis...
  12. ncbi request reprint Synthesis of 3-(4-Bromobenzyl)-5-(aryl methylene)-5H-furan-2-ones and their activity as inhibitors of the photosynthetic electron transport chain
    Luiz C A Barbosa
    Chemistry Department, Federal University of Vicosa, Avenida P H Rolfs, CEP 36570 000, Vicosa, MG, Brazil
    J Agric Food Chem 55:8562-9. 2007
    ..Although poor solubility in water may limit their effectiveness, the active derivatives could present structures to be exploited for the design of new substances endowed with herbicidal activity...
  13. ncbi request reprint The fungal phytotoxin alternariol 9-methyl ether and some of its synthetic analogues inhibit the photosynthetic electron transport chain
    Antonio Jacinto Demuner
    Department of Chemistry, Federal University of Vicosa, Av P H Rolfs, Vicosa, Minas Gerais, 36570 000, Brazil
    J Nat Prod 76:2234-45. 2013
    ..In contrast, the growth of a nonphotosynthetic plant cell culture was poorly affected. These compounds may represent a novel lead for the development of new active principles targeting photosynthesis. ..
  14. doi request reprint Seasonal variation in the chemical composition and antimicrobial activity of volatile oils of three species of Leptospermum (Myrtaceae) grown in Brazil
    Antonio Jacinto Demuner
    Departamento de Quimica, Universidade Federal de Vicosa, Av P H Rolfs s n, 36570 000 Vicosa, MG, Brazil
    Molecules 16:1181-91. 2011
    ..5-33.9%) and neral (22.7-23.5%). The activity of the volatile oils against the tested bacteria differed, depending on season the oils were obtained. In general, the volatile oils were more active against Gram-positive bacteria...
  15. ncbi request reprint Chemical characterization of volatile compounds of Lantana camara L. and L. radula Sw. and their antifungal activity
    Juliana Lanna Passos
    Department of Chemistry, Federal University of Vicosa, Av P H Rolfs, S N, 36570 000, Vicosa, MG, Brazil
    Molecules 17:11447-55. 2012
    ..camara, in accordance with the in vivo observations. It is likely that E-nerolidol and phytol, only found in the oil of L. radula, play a significant role in the effects of L. radula on C. cassiicola...
  16. doi request reprint Synthesis and phytotoxic activity of new pyridones derived from 4-hydroxy-6-methylpyridin-2(1H)-one
    Antonio Jacinto Demuner
    Department of Chemistry, Federal University of Vicosa, Av P H Rolfs, S N, 36570 000, Vicosa, MG, Brazil
    Molecules 14:4973-86. 2009
    ..7 x 10(-8) mol a.i./g substrate the compounds showed some phytotoxic selectivity, being more active against the dicotyledonous species. These compounds can be used as lead structures for the development of more active phytotoxic products...
  17. doi request reprint Composition, and anti-inflammatory and antioxidant activities of the volatile oil from the fruit peel of Garcinia brasiliensis
    Felipe T Martins
    Laboratorio de Cristalografía, Departamento de Ciências Exatas, Universidade Federal de Alfenas UNIFAL MG, Rua Gabriel Monteiro da Silva, 714, Alfenas MG, 37130 000, Brazil
    Chem Biodivers 5:251-8. 2008
    ..Inhibition of the inflammatory process was noticed 3 h after carrageenan administration. In addition, the volatile oil showed poor antioxidant activity...
  18. doi request reprint Synthesis of photosynthesis-inhibiting nostoclide analogues
    Róbson R Teixeira
    Department of Chemistry, Federal University of Vicosa, Vicosa, MG, Brazil
    J Agric Food Chem 56:2321-9. 2008
    ..The inhibitory potential of these 3-benzyl-5-(arylmethylene)furan-2(5H)-one lactones is higher than that of other nostoclide analogues previously synthesized in the same laboratories...
  19. ncbi request reprint Synthesis and anticancer activity of new class of bisphosphonates/phosphanamidates
    Y B Kiran
    Department of Chemistry, Sri Venkateswara University, Tirupati 517502, Andhra Pradesh, India
    Eur J Med Chem 43:885-92. 2008
    ....
  20. ncbi request reprint Effect of storage time on the composition and content of wood extractives in Eucalyptus cultivated in Brazil
    Flaviano O Silvério
    Department of Chemistry, Federal University of Vicosa, 36570 000 Vicosa, MG, Brazil
    Bioresour Technol 99:4878-86. 2008
    ..These studies demonstrate that in terms of economical aspects, quality of the pulp and paper and minimization of pitch formation, the best period of wood storage is 60 days...