D
Dennis de Oliveira Imbroisi
Researcher at Federal University of Alagoas
Publications - 7
Citations - 58
Dennis de Oliveira Imbroisi is an academic researcher from Federal University of Alagoas. The author has contributed to research in topics: Pyran & Benzopyran. The author has an hindex of 3, co-authored 7 publications receiving 56 citations.
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Journal ArticleDOI
Synthesis and evaluation of the molluscicidal activity of the 5,6-dimethyl-dihydro-pyran-2,4-dione and 6-substituted analogous.
Laura Cristiane de Souza,Aldenir Feitosa dos Santos,Antônio Euzébio Goulart Santana,Dennis de Oliveira Imbroisi +3 more
TL;DR: Five dihydro-piran-2,4-diones, including 5,6-dimethyl-dihydro- Pirate-2-4-Dione one of the intermediates of the synthesis of caloverticilic acid, showed significant activities against the Biomphalaria glabrata egg masses, while the analogous 6-(3, 4-dimethoxy-phenyl) was inactive as molluscicide.
Journal ArticleDOI
Determination of the free radical scavenging activity of dihydropyran-2,4-diones
TL;DR: In this paper, the antioxidant properties of dihydropyran-2,4-diones were established through determination of their abilities to inhibit free radicals using DPPH(*) as the stable radical.
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A pimpinellin monomer and dimer isolated from the roots of Esenbeckia grandiflora
P. E. S. de Oliveira,Lucia M. Conserva,C. A. De Simone,Mariano A. Pereira,V. R. S. Malta,Dennis de Oliveira Imbroisi +5 more
TL;DR: X-ray diffraction studies carried out on single crystals of the monomeric and dimeric forms of pimpinellin have revealed that the carbonyl groups are head-to-head with respect to one another following cyclodimerization.
Journal ArticleDOI
Construção de um sistema simples e compacto de recirculação d'água sob pressão para trompa d'água
Dennis de Oliveira Imbroisi,Carmen Silvia Tavares de Santana,Cleônia Roberta Melo Araújo,Wilson Ceciliano da Silva,Cleylton Bezerra Lopes +4 more
TL;DR: In this paper, the authors described the design of a compact and low cost water recirculating system employing a water-jet aspirator pump as the vacuum source, which is very useful in physical, chemical and biological experiments.
Journal ArticleDOI
Crystal structure of 4-hydroxy-6-propenyl-5,6-dihydro-pyran-2-one, C8H10O3
Laura Cristiane de Souza,Dennis de Oliveira Imbroisi,C. A. De Simone,M. A. Pereira,Valéria R. S. Malta,J. F. T. Oliveira +5 more
TL;DR: In this article, the authors proposed a monoclinic approach to the monoclonality problem in monocular monocular microscopy and showed that β = 104.540(2)°, V = 757.4 Å3, Z = 4, Rgt(F) = 0.049, wRref(F2) =0.169, T = 293 K.