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Relevant bibliographies by topics / Benzodioxole

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Journal articles

Academic literature on the topic 'Benzodioxole'

Author: Grafiati

Published: 4 June 2021

Last updated: 8 February 2022

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Journal articles on the topic "Benzodioxole"

1

Pingali, Subramanya, James P. Donahue, and Florastina Payton-Stewart. "Tetrahydroberberine, a pharmacologically active naturally occurring alkaloid." Acta Crystallographica Section C Structural Chemistry 71, no. 4 (2015): 262–65. http://dx.doi.org/10.1107/s2053229615004076.

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Tetrahydroberberine (systematic name: 9,10-dimethoxy-5,8,13,13a-tetrahydro-6H-benzo[g][1,3]benzodioxolo[5,6-a]quinolizine), C20H21NO4, a widely distributed naturally occurring alkaloid, has been crystallized as a racemic mixture about an inversion center. A bent conformation of the molecule is observed, with an angle of 24.72 (5)° between the arene rings at the two ends of the reduced quinolizinium core. The intermolecular hydrogen bonds that play an apparent role in crystal packing are 1,3-benzodioxole –CH2...OCH3and –OCH3...OCH3interactions between neighboring molecules.

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2

Vidal, B., JY Conan, G. Lamaty, and J. Vardin. "Geometry of Some Strained Oxygen Ring Compounds: 1,3-Benzodioxole and 2,3-Dihydro-1,4-benzodioxin (Benzodioxan). Application to the Geometry of (6aR-cis)-3-Methoxy-6a,12a-dihydro-6h-[1,3]dioxolo-[5,6]benzofuro[3,2-C] [1]benzopyran (Pterocarpin)." Australian Journal of Chemistry 41, no. 7 (1988): 1107. http://dx.doi.org/10.1071/ch9881107.

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The geometry of benzodioxole, benzodioxan and the strained five- membered rings of pterocarpin are studied by the MNDO method. We show that in benzodioxole there is bond alternation towards a Kekule -like structure such as in indan (Mills-Nixon effect). In benzodioxole, owing to the smaller perimeter of the fused ring and enhanced strain, alternation is more pronounced than in indan . An explanation is offered for the strong distortion in ring angles in benzodioxole compared with indan. The effect of strain in benzodioxan and pterocarpin is discussed.

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3

Daliacker, Franz, Hans-Joachim Schieuter, and Petra Schneider. "Darstellung und Reaktionen von 1,3-Benzdioxol-biscarbaldehyden. Ein Beitrag zur Strukturaufklärung des Nepenthons A / Synthesis and Reactions of 1,3-Benzodioxoledicarboxaldehydes. A Contribution to the Structure Elucidation of Nepenthone-A." Zeitschrift für Naturforschung B 41, no. 10 (1986): 1273–80. http://dx.doi.org/10.1515/znb-1986-1014.

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We describe the preparation o f 1,3-Benzodioxole-5,6-dicarboxaldehyde (1d) and 1,3-Benzdioxole- 4,5-dicarboxaldehyde (3h). Under especially mild conditions also the synthesis of 4,7- Dimethoxy-1,3-benzodioxole-5,6-dicarboxaldehyde (4g) can be achieved. Its reaction with Hydroxyacetone leads to quinone 9a, which after methylation can be identified with the dim ethylether of Nepenthone-A .

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4

Chang, Franklin, Eric B. Jang, Chiou-Ling Hsu, Michael C. Ma, and Leonard Jurd. "Benzodioxole-1,3-benzodioxole derivatives and their effects on the reproductive physiology of insects." Archives of Insect Biochemistry and Physiology 27, no. 1 (1994): 39–51. http://dx.doi.org/10.1002/arch.940270106.

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5

Betz, Richard, Peter Klüfers, and Moritz M. Reichvilser. "2,2-Bis(pentafluorophenyloxy)-1,3-benzodioxole." Acta Crystallographica Section E Structure Reports Online 63, no. 9 (2007): o3769. http://dx.doi.org/10.1107/s1600536807038950.

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6

Srivastava, Shaifali, Madan M. Gupta, Ram K. Verma, and Sushil Kumar. "Determination of 1,3-Benzodioxanes in Piper mullesua by High-Performance Thin-Layer Chromatography." Journal of AOAC INTERNATIONAL 83, no. 6 (2000): 1484–88. http://dx.doi.org/10.1093/jaoac/83.6.1484.

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Abstract A new, simple, precise, and rapid high-performance thin-layer chromatographic method was developed for the determination of 6 benzodioxanes in Piper mullesua extract: 1′,3′-benzodioxole-5′-(2,4,8-triene-isobutyl nonanoate), 1′,3′-benzodioxole-5′-(2,4,12-triene-isobutyl tridecanoate), fargesin, sesamin, asarinin, 1′,3′-benzodioxole-5′-(2,4,8-triene-methyl nonanoate). The ingredients were separated on a precoated Silica Gel 60 F254 plate with a solvent system of toluene–acetone (92 + 8). The 6 benzodioxanes were well separated and easily identified in this chromatographic system. The se

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7

Yang, Jinliang, Suqing Shi, and Jun Nie. "Reasons for the yellowness of photocured samples by the benzophenone/1,3-benzodioxole photoinitiating system." New Journal of Chemistry 39, no. 7 (2015): 5453–58. http://dx.doi.org/10.1039/c5nj00575b.

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8

Ghichi, Nadir, Mohamed Amine Benaouida, Ali Benosmane, Ali Benboudiaf, and Hocine Merazig. "2-(1,3-Benzodioxol-5-yl)-1H-benzimidazole." Acta Crystallographica Section E Structure Reports Online 70, no. 2 (2014): o157. http://dx.doi.org/10.1107/s1600536814000737.

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The asymmetric unit of the title compound, C14H10N2O2, contains two independent molecules. In each molecule, the benzodioxole ring system displays an envelope conformation, with the methylene C atom located at the flap deviating by 0.081 (2) and 0.230 (2) Å from the mean plane formed by the other atoms. The dihedral angles between the benzoimidazole ring system (all atoms) and the benzodioxole benzene ring are 15.35 (6) and 10.99 (7)°. In the crystal, molecules are linked by N—H...N hydrogen bonds into chains running along the [101].

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9

Asiri, Abdullah M., Hassan M. Faidallah, Khulud F. Al-Nemari, Seik Weng Ng, and Edward R. T. Tiekink. "(2E)-2-[(2H-1,3-Benzodioxol-5-yl)methylidene]-2,3-dihydro-1H-inden-1-one." Acta Crystallographica Section E Structure Reports Online 68, no. 4 (2012): o1015. http://dx.doi.org/10.1107/s1600536812009464.

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In the title compound, C17H12O3, each of the five-membered rings in the inden-1-one and 1,3-benzodioxole residues is almost planar (r.m.s. deviations = 0.041 and 0.033 Å, respectively). A small twist about the single bond linking the two residues is evident [the C—C—C—C torsion angle = 8.7 (4)°]. Supramolecular zigzag layers propagating in theacplane are formed in the crystalviaC—H...O interactions. The layers are linkedviaπ–π interactions between the five- and six-membered rings of 1,3-benzodioxole residues [centroid–centroid distance = 3.4977 (14) Å].

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10

Qi, Xiu-Xiang, Ji-Shuan Suo, Li-Min Wang, Xiao-He Guo, and Sen-Xiang Cheng. "Ethyl 4-{5-[1-(hydroxymethyl)ethylaminocarbonyl]-1,3-benzodioxol-4-yl}-7-methoxy-3-benzodioxole-5-carboxylate." Acta Crystallographica Section E Structure Reports Online 62, no. 4 (2006): o1269—o1270. http://dx.doi.org/10.1107/s1600536806006246.

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In the title compound, C23H25NO10, the five-membered rings adopt envelope conformations and the dihedral angle between the two benzene rings is 67.1 (7)°. The crystal structure is stabilized by intramolecular N—H...O and intermolecular O—H...O hydrogen-bond interactions.

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