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Armando Zarrelli - One of the best experts on this subject based on the ideXlab platform.
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Bioactivity of phenanthrenes from Juncus acutus on Selenastrum capricornutum.
Journal of Chemical Ecology, 2004Co-Authors: Marina Dellagreca, Pietro Monaco, Lucio Previtera, Marina Isidori, Margherita Lavorgna, Armando ZarrelliAbstract:Twenty-five 9,10-Dihydrophenanthrenes, four phenanthrenes, a dihydrodibenzoxepin, and a pyrene, isolated from the wetland plant Juncus acutus, were tested to detect their effects on the green alga Selenastrum capricornutum. Nine of the compounds were isolated and identified for the first time. Most of the compounds caused inhibition of algal growth. The 9,10-Dihydrophenanthrenes 1, 5, 21, and 22 were the most active.
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phenanthrenoids from the wetland juncus acutus
Phytochemistry, 2002Co-Authors: Marina Dellagreca, Pietro Monaco, Lucio Previtera, Antonio Fiorentino, Marina Isidori, Margherita Lavorgna, Armando ZarrelliAbstract:Abstract Nine 9,10-Dihydrophenanthrenes, three phenanthrenes and a related pyrene have been isolated from the wetland plant Juncus acutus. The structures have been attributed by means of their spectral data and chemical correlation. 5-(1-Ethoxy-ethyl)-2-hydroxy-7-methoxy-1,8-dimethyl-9,10-Dihydrophenanthrene and 5-(1-phytoxy-ethyl)-2-hydroxy-7-methoxy-1,8-dimethyl-9,10-Dihydrophenanthrene, 2,7-dihydroxy-1-methyl-5-vinylphenanthrene, 2,7-dimethoxy-1,6-dimethyl-5-vinylphenanthrene and 2,7-dihydroxy-1,6-dimethylpyrene are described for the first time. Many of the compounds showed in vitro phytotoxicity against Selenastrum capricornutum, a microalga used in aquatic tests.
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phenanthrenoids from the wetland juncus acutus
Phytochemistry, 2002Co-Authors: Marina Dellagreca, Pietro Monaco, Lucio Previtera, Marina Isidori, Margherita Lavorgna, Armando ZarrelliAbstract:Nine 9,10-Dihydrophenanthrenes, three phenanthrenes and a related pyrene have been isolated from the wetland plant Juncus acutus. The structures have been attributed by means of their spectral data and chemical correlation. 5-(1-Ethoxy-ethyl)-2-hydroxy-7-methoxy-1,8-dimethyl-9,10-Dihydrophenanthrene and 5-(1-phytoxy-ethyl)-2-hydroxy-7-methoxy-1,8-dimethyl-9,10-Dihydrophenanthrene, 2,7-dihydroxy-1-methyl-5-vinylphenanthrene, 2,7-dimethoxy-1,6-dimethyl-5-vinylphenanthrene and 2,7-dihydroxy-1,6-dimethylpyrene are described for the first time. Many of the compounds showed in vitro phytotoxicity against Selenastrum capricornutum, a microalga used in aquatic tests.
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effusides i v 9 10 Dihydrophenanthrene glucosides from juncus effusus
Phytochemistry, 1995Co-Authors: Marina Della Greca, Pietro Monaco, Lucio Previtera, Antonio Fiorentino, Armando ZarrelliAbstract:Five 9,10-Dihydrophenanthrene glucosides, named effusides I-V, have been isolated from the methanolic extract of Juncus effusus. Structures have been determined on spectroscopic grounds.
Lucio Previtera - One of the best experts on this subject based on the ideXlab platform.
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Bioactivity of phenanthrenes from Juncus acutus on Selenastrum capricornutum.
Journal of Chemical Ecology, 2004Co-Authors: Marina Dellagreca, Pietro Monaco, Lucio Previtera, Marina Isidori, Margherita Lavorgna, Armando ZarrelliAbstract:Twenty-five 9,10-Dihydrophenanthrenes, four phenanthrenes, a dihydrodibenzoxepin, and a pyrene, isolated from the wetland plant Juncus acutus, were tested to detect their effects on the green alga Selenastrum capricornutum. Nine of the compounds were isolated and identified for the first time. Most of the compounds caused inhibition of algal growth. The 9,10-Dihydrophenanthrenes 1, 5, 21, and 22 were the most active.
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phenanthrenoids from the wetland juncus acutus
Phytochemistry, 2002Co-Authors: Marina Dellagreca, Pietro Monaco, Lucio Previtera, Antonio Fiorentino, Marina Isidori, Margherita Lavorgna, Armando ZarrelliAbstract:Abstract Nine 9,10-Dihydrophenanthrenes, three phenanthrenes and a related pyrene have been isolated from the wetland plant Juncus acutus. The structures have been attributed by means of their spectral data and chemical correlation. 5-(1-Ethoxy-ethyl)-2-hydroxy-7-methoxy-1,8-dimethyl-9,10-Dihydrophenanthrene and 5-(1-phytoxy-ethyl)-2-hydroxy-7-methoxy-1,8-dimethyl-9,10-Dihydrophenanthrene, 2,7-dihydroxy-1-methyl-5-vinylphenanthrene, 2,7-dimethoxy-1,6-dimethyl-5-vinylphenanthrene and 2,7-dihydroxy-1,6-dimethylpyrene are described for the first time. Many of the compounds showed in vitro phytotoxicity against Selenastrum capricornutum, a microalga used in aquatic tests.
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phenanthrenoids from the wetland juncus acutus
Phytochemistry, 2002Co-Authors: Marina Dellagreca, Pietro Monaco, Lucio Previtera, Marina Isidori, Margherita Lavorgna, Armando ZarrelliAbstract:Nine 9,10-Dihydrophenanthrenes, three phenanthrenes and a related pyrene have been isolated from the wetland plant Juncus acutus. The structures have been attributed by means of their spectral data and chemical correlation. 5-(1-Ethoxy-ethyl)-2-hydroxy-7-methoxy-1,8-dimethyl-9,10-Dihydrophenanthrene and 5-(1-phytoxy-ethyl)-2-hydroxy-7-methoxy-1,8-dimethyl-9,10-Dihydrophenanthrene, 2,7-dihydroxy-1-methyl-5-vinylphenanthrene, 2,7-dimethoxy-1,6-dimethyl-5-vinylphenanthrene and 2,7-dihydroxy-1,6-dimethylpyrene are described for the first time. Many of the compounds showed in vitro phytotoxicity against Selenastrum capricornutum, a microalga used in aquatic tests.
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effusides i v 9 10 Dihydrophenanthrene glucosides from juncus effusus
Phytochemistry, 1995Co-Authors: Marina Della Greca, Pietro Monaco, Lucio Previtera, Antonio Fiorentino, Armando ZarrelliAbstract:Five 9,10-Dihydrophenanthrene glucosides, named effusides I-V, have been isolated from the methanolic extract of Juncus effusus. Structures have been determined on spectroscopic grounds.
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9,10-Dihydrophenanthrene Glucosides from Juncus effusus
Natural Product Letters, 1995Co-Authors: Marina Della Greca, Pietro Monaco, Antonio Molinaro, Antonio Fiorentino, Lucio PreviteraAbstract:Abstract Four 9,10-Dihydrophenanthrene glucosides have been isolated from Juncus effusus and their structures confirmed on spectroscopic grounds and by semisynthesis. The results of a cytotoxic assay are also reported.
Pietro Monaco - One of the best experts on this subject based on the ideXlab platform.
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Bioactivity of phenanthrenes from Juncus acutus on Selenastrum capricornutum.
Journal of Chemical Ecology, 2004Co-Authors: Marina Dellagreca, Pietro Monaco, Lucio Previtera, Marina Isidori, Margherita Lavorgna, Armando ZarrelliAbstract:Twenty-five 9,10-Dihydrophenanthrenes, four phenanthrenes, a dihydrodibenzoxepin, and a pyrene, isolated from the wetland plant Juncus acutus, were tested to detect their effects on the green alga Selenastrum capricornutum. Nine of the compounds were isolated and identified for the first time. Most of the compounds caused inhibition of algal growth. The 9,10-Dihydrophenanthrenes 1, 5, 21, and 22 were the most active.
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phenanthrenoids from the wetland juncus acutus
Phytochemistry, 2002Co-Authors: Marina Dellagreca, Pietro Monaco, Lucio Previtera, Antonio Fiorentino, Marina Isidori, Margherita Lavorgna, Armando ZarrelliAbstract:Abstract Nine 9,10-Dihydrophenanthrenes, three phenanthrenes and a related pyrene have been isolated from the wetland plant Juncus acutus. The structures have been attributed by means of their spectral data and chemical correlation. 5-(1-Ethoxy-ethyl)-2-hydroxy-7-methoxy-1,8-dimethyl-9,10-Dihydrophenanthrene and 5-(1-phytoxy-ethyl)-2-hydroxy-7-methoxy-1,8-dimethyl-9,10-Dihydrophenanthrene, 2,7-dihydroxy-1-methyl-5-vinylphenanthrene, 2,7-dimethoxy-1,6-dimethyl-5-vinylphenanthrene and 2,7-dihydroxy-1,6-dimethylpyrene are described for the first time. Many of the compounds showed in vitro phytotoxicity against Selenastrum capricornutum, a microalga used in aquatic tests.
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phenanthrenoids from the wetland juncus acutus
Phytochemistry, 2002Co-Authors: Marina Dellagreca, Pietro Monaco, Lucio Previtera, Marina Isidori, Margherita Lavorgna, Armando ZarrelliAbstract:Nine 9,10-Dihydrophenanthrenes, three phenanthrenes and a related pyrene have been isolated from the wetland plant Juncus acutus. The structures have been attributed by means of their spectral data and chemical correlation. 5-(1-Ethoxy-ethyl)-2-hydroxy-7-methoxy-1,8-dimethyl-9,10-Dihydrophenanthrene and 5-(1-phytoxy-ethyl)-2-hydroxy-7-methoxy-1,8-dimethyl-9,10-Dihydrophenanthrene, 2,7-dihydroxy-1-methyl-5-vinylphenanthrene, 2,7-dimethoxy-1,6-dimethyl-5-vinylphenanthrene and 2,7-dihydroxy-1,6-dimethylpyrene are described for the first time. Many of the compounds showed in vitro phytotoxicity against Selenastrum capricornutum, a microalga used in aquatic tests.
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effusides i v 9 10 Dihydrophenanthrene glucosides from juncus effusus
Phytochemistry, 1995Co-Authors: Marina Della Greca, Pietro Monaco, Lucio Previtera, Antonio Fiorentino, Armando ZarrelliAbstract:Five 9,10-Dihydrophenanthrene glucosides, named effusides I-V, have been isolated from the methanolic extract of Juncus effusus. Structures have been determined on spectroscopic grounds.
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9,10-Dihydrophenanthrene Glucosides from Juncus effusus
Natural Product Letters, 1995Co-Authors: Marina Della Greca, Pietro Monaco, Antonio Molinaro, Antonio Fiorentino, Lucio PreviteraAbstract:Abstract Four 9,10-Dihydrophenanthrene glucosides have been isolated from Juncus effusus and their structures confirmed on spectroscopic grounds and by semisynthesis. The results of a cytotoxic assay are also reported.
Marina Dellagreca - One of the best experts on this subject based on the ideXlab platform.
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Bioactivity of phenanthrenes from Juncus acutus on Selenastrum capricornutum.
Journal of Chemical Ecology, 2004Co-Authors: Marina Dellagreca, Pietro Monaco, Lucio Previtera, Marina Isidori, Margherita Lavorgna, Armando ZarrelliAbstract:Twenty-five 9,10-Dihydrophenanthrenes, four phenanthrenes, a dihydrodibenzoxepin, and a pyrene, isolated from the wetland plant Juncus acutus, were tested to detect their effects on the green alga Selenastrum capricornutum. Nine of the compounds were isolated and identified for the first time. Most of the compounds caused inhibition of algal growth. The 9,10-Dihydrophenanthrenes 1, 5, 21, and 22 were the most active.
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phenanthrenoids from the wetland juncus acutus
Phytochemistry, 2002Co-Authors: Marina Dellagreca, Pietro Monaco, Lucio Previtera, Antonio Fiorentino, Marina Isidori, Margherita Lavorgna, Armando ZarrelliAbstract:Abstract Nine 9,10-Dihydrophenanthrenes, three phenanthrenes and a related pyrene have been isolated from the wetland plant Juncus acutus. The structures have been attributed by means of their spectral data and chemical correlation. 5-(1-Ethoxy-ethyl)-2-hydroxy-7-methoxy-1,8-dimethyl-9,10-Dihydrophenanthrene and 5-(1-phytoxy-ethyl)-2-hydroxy-7-methoxy-1,8-dimethyl-9,10-Dihydrophenanthrene, 2,7-dihydroxy-1-methyl-5-vinylphenanthrene, 2,7-dimethoxy-1,6-dimethyl-5-vinylphenanthrene and 2,7-dihydroxy-1,6-dimethylpyrene are described for the first time. Many of the compounds showed in vitro phytotoxicity against Selenastrum capricornutum, a microalga used in aquatic tests.
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phenanthrenoids from the wetland juncus acutus
Phytochemistry, 2002Co-Authors: Marina Dellagreca, Pietro Monaco, Lucio Previtera, Marina Isidori, Margherita Lavorgna, Armando ZarrelliAbstract:Nine 9,10-Dihydrophenanthrenes, three phenanthrenes and a related pyrene have been isolated from the wetland plant Juncus acutus. The structures have been attributed by means of their spectral data and chemical correlation. 5-(1-Ethoxy-ethyl)-2-hydroxy-7-methoxy-1,8-dimethyl-9,10-Dihydrophenanthrene and 5-(1-phytoxy-ethyl)-2-hydroxy-7-methoxy-1,8-dimethyl-9,10-Dihydrophenanthrene, 2,7-dihydroxy-1-methyl-5-vinylphenanthrene, 2,7-dimethoxy-1,6-dimethyl-5-vinylphenanthrene and 2,7-dihydroxy-1,6-dimethylpyrene are described for the first time. Many of the compounds showed in vitro phytotoxicity against Selenastrum capricornutum, a microalga used in aquatic tests.
Takakazu Yamamoto - One of the best experts on this subject based on the ideXlab platform.
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synthesis and chemical properties of π conjugated poly 9 10 dialkyl 9 10 Dihydrophenanthrene 2 7 diyl and a related polymer
Chemistry Letters, 2011Co-Authors: Ryouichi Tokimitsu, Takeaki Koizumi, Takakazu YamamotoAbstract:π-Conjugated poly(9,10-dioctyl-9,10-Dihydrophenanthrene-2,7-diyl) and a related polymer were prepared by dehalogenative organometallic polycondensation using the corresponding dibromo compound. The...
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time resolved photoluminescence study and microcapillary laser of blue emissive π conjugated polymers based on 9 10 Dihydrophenanthrene unit
Japanese Journal of Applied Physics, 2009Co-Authors: Kimihiro Masuyama, Takakazu Yamamoto, Naoyuki Yamasaki, Akihiko Fujii, Takahiro Asao, Hiroki Fukumoto, Rahmat Hidayat, Masanori OzakiAbstract:The emission properties of π-conjugated polymers based on 9,10-Dihydrophenanthrene units, which are expected to form linear and planar π-conjugations and have rigid characteristics in the main chain, have been clarified in the films. The photoluminescence decay of the π-conjugated polymers with the 9,10-Dihydrophenanthrene unit has been studied in detail, and low-threshold photopumped multimode blue laser emission has been demonstrated from cylindrical microcavities with the polymer thin film fabricated onto the inner surface of an optical capillary tube.
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optical properties and microcapillary laser of blue emissive π conjugated polymers based on 9 10 Dihydrophenanthrene unit
Japanese Journal of Applied Physics, 2008Co-Authors: Kimihiro Masuyama, Takakazu Yamamoto, Akihiko Fujii, Takahiro Asao, Hiroki Fukumoto, Rahmat Hidayat, Takashi Nakao, Jun Sakai, Masanori OzakiAbstract:The optical properties of π-conjugated polymers based on 9,10-Dihydrophenanthrene units, such as optical absorption and photoluminescence (PL), were studied. The electronic energy structures were determined by optical measurements. Strong PL with high quantum efficiency was clarified in the films, and photo-pumped multimode blue laser emission was demonstrated from cylindrical microcavities with the polymer thin film fabricated inside the optical capillary tube.
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preparation of poly 9 10 Dihydrophenanthrene 2 7 diyl consisting of a chiral c2 symmetrical monomeric unit and optical properties of the polymer
Chemistry Letters, 2005Co-Authors: Takayuki Iijima, Takakazu YamamotoAbstract:Poly(9,10-Dihydrophenanthrene-2,7-diyl) consisting of chiral 9,10-dihydro-9,10-bis(tributylsilyloxy)phenanthrene-2,7-diyl units has been prepared. Film of the polymer showed a very large circular d...
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synthesis of soluble poly 9 10 Dihydrophenanthrene 2 7 diyl s a new class of luminescent poly p phenylene s with ethylene type bridges
Polymer, 2004Co-Authors: Takakazu Yamamoto, Takahiro Asao, Hiroki FukumotoAbstract:Abstract Poly(9,10-Dihydrophenanthrene-2,7-diyl)s with –OSi(R)2(R′) groups at the 9,10-positions were synthesized by dehalogenative polycondensation of the corresponding monomers by using a zerovalent nickel complex. They showed number average molecular weights (Mn's) of 9800–69,000 and high quantum yields (62%-quantitative) in photoluminescence. Palladium catalyzed copolymerization of 2,7-dibromo-9,10-Dihydrophenanthrene having –OCH3 or –OSi(R)2(R′) groups at the 9,10-positions with diethynyl- or diboronic-aromatic compounds also gave photoluminescent polymers with high quantum yields.