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Relevant bibliographies by topics / 2-b]naphtha[1

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Academic literature on the topic '2-b]naphtha[1'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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Journal articles on the topic "2-b]naphtha[1"

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Nagarsha, K. M., T. M. Sharanakumar, D. Ramesh, et al. "NOVEL SYNTHESIS, CHARACTERIZATION AND ANTIMICROBIAL ACTIVITY OF N-(5BROMO-2-(5-PHENYL1,3,4-OXADIAZOL-2-YL)NAPHTHA[2,1-B]FURAN-1- YL)ACETAMIDE AND N-(5-NITRO-2-(5-PHENYL-1,3,4- OXADIAZOL-2-YL)NAPHTHA[2,1-BFURAN-1-YL]ACETAMIDE AND THEIR DERIVATIVES." RASAYAN Journal of Chemistry 16, no. 01 (2023): 167–75. http://dx.doi.org/10.31788/rjc.2023.1618088.

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The novel derivatives of naphtho-furan such N-(5bromo-2-(5-phenyl-1,3,4-oxadiazol-2-yl)naphtha[2,1-b]furan-1- yl)acetamide (8), N-(5-bromo-2-(hydrazinecarbonyl)naphtha[2,1-b]furan-1-yl]acetamide (7), ethyl-1-acetamido-5- bromonaphtho[2,1-b]furan-2-carboxylate (6), N-(5-nitro-2-(5-phenyl-1,3,4-oxadiazol-2-yl)naphtha[2,1-bfuran-1- yl]acetamide (5),N-(2-(hydrazinecarbonyl)-5-nitronaphtho[2,1-b]furan-1-yl)acetamide (4), ethyl-1-acetamido-5- nitrpnaphtho[2,1-b]furan-2-carboxylate (3), are prepared by ethyl-1-acetamidonaphtho[2,1-b]furan-2-carboxyate and ethyl 1-aminonaphtho[2,1-b]furan-2-carboxylat

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2

Devi, K. Shashikala, M. Ramaiah, D. L. Roopa, and V. P. Vaidya. "Synthesis and Investigation of Antimicrobial and Antioxidant Activity of 3-Nitro-N- (3-chloro-2-oxo-substituted-phenyl-azetidin-1-yl)naphtho [2,1-b]furan-2-carboxamides." E-Journal of Chemistry 7, s1 (2010): S358—S362. http://dx.doi.org/10.1155/2010/863547.

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Ethyl-3-nitronaphtho[2,1-b]furan-2-carboxylate(2)has been synthesized from ethyl naphtha [2,1-b]furan-2-carboxylate(1). This nitro product on reaction with hydrazine hydrate formed 3-nitronaphtho [2,1-b] furan-2-carbohydrazide(3). Various Schiff bases 3-nitro-N1(aryl-methylene)-substituted-naphtho [2,1-b]furan-2-carbohydrazides4(a-g)were obtained by treating hydrazide(3)with different aldehydes. These Schiff bases on reaction with chloro acetyl chloride in presence of triethylamine in dioxane yielded 3-nitro-N-(3-chloro-2-oxo-substituted-phenyl-azetidine-1-yl) naphtha [2,1-b]furan-2-carboxamid

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3

Nagarsha, K. M., T. M. Sharanakumar, D. Ramesh, M. N. Kumarswamy, and K. P. Latha. "SYNTHESIS, CHARACTERIZATION, AND ANTIBACTERIAL ACTIVITIES OF NAPHTHO[2,1-b]FURAN DERIVATIVES." RASAYAN Journal of Chemistry 15, no. 04 (2022): 2477–84. http://dx.doi.org/10.31788/rjc.2022.1548052.

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The naphthofuran and its derivatives are important biological compounds so we have focused on the synthesis of naphthofuran derivatives. The synthesized compounds of ethyl 1-(acetylamino)-5-nitronaphtho[2,1-b]furan-2- carboxylate (3), and N-[2-(hydrazinylcarbonyl)-5-nitronaphtho[2,1-b]furan-1-yl]acetamide (4) used for the synthesis of N-(2-{[(2Z)-2-benzylidenehydrazinyl]carbonyl}-5-nitronaphtho[2,1-b]furan-1-yl)acetamide compounds of four derivatives 5 (a-d) and 1-acetamido-5-nitro-N-(5-oxo-2-phenylthiazolidin-3-yl)naphtha[2,1-b]furan-2-carboxamide compounds of four derivatives 6 (a-d). The pr

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4

Emel, Pelit. "(±)-CSA Catalyzed Multicomponent Synthesis of Indeno Naphthopyrans and Tetrahydrobenzo[a]xanthen-11-ones Under Ultrasonic Irradiation." Chemical Science International Journal 20, no. 1 (2017): 1–8. https://doi.org/10.9734/CSJI/2017/35380.

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<strong>Aims: </strong>This study was designed to synthesis of Naphthopyrans and xanthenes derivatives in green chemistry approach. <strong>Methodology:</strong> New 13-aryl-indeno[1,2-<em>b</em>]naphtha[1,2-<em>e</em>]pyran-12(13<em>H</em>)-ones and tetrahydrobenzo[<em>a</em>]xanthen-11-ones were obtained by multi-component reaction of 2-naphthol, aromatic aldehydes, indane-1,3-dione or 5,5-dimethylcyclohexane-1,3-dione in the presence of (±)-camphor-10-sulfonic acid (CSA) catalyst under ultrasonic irradiation. <strong>Results:</strong> 13-aryl-indeno[1,2-<em>b</em>]naphtha[1,2-<em>e</em>]pyr

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5

He, Huan, Wei Dong Du, Qiang Zhou, et al. "Three New Phenolic Compounds from Sabia parviflora and Their Hepatoprotective Activity." Natural Product Communications 17, no. 8 (2022): 1934578X2211184. http://dx.doi.org/10.1177/1934578x221118478.

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Three compounds were obtained from Sabia parviflora Wall., and their structures were identified through nuclear magnetic resonance (NMR) spectroscopy, particularly 2-dimensional (2D)-NMR. The molecular masses were determined using quadrupole-time-of-flight-mass spectrometry. Electronic circular dichroism spectra were used to determine the absolute configuration of compound 1. The 3 new compounds were identified as 2,2,7,7-tetramethyl-8S,10-dihydroxy-2,7,8,9-tetrahydro-2H-naphtha[2,3-b]pyran-6-one-10- O- β-D-glucopyranoside, (2Z)-4-(3-carboxy-4-hydroxyphenyl)-2-methylbut-2-enoic acid, and (2Z)-

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6

Osw, Peshawa, Andrea Nitti, Media N. Abdullah та ін. "Synthesis and Evaluation of Scalable D-A-D π-Extended Oligomers as p-Type Organic Materials for Bulk-Heterojunction Solar Cells". Polymers 12, № 3 (2020): 720. http://dx.doi.org/10.3390/polym12030720.

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The synthesis and characterization of four novel donor-acceptor-donor π-extended oligomers, incorporating naphtha(1–b)thiophene-4-carboxylate or benzo(b)thieno(3,2-g) benzothiophene-4-carboxylate 2-octyldodecyl esters as end-capping moieties, and two different conjugated core fragments, is reported. The end-capping moieties are obtained via a cascade sequence of sustainable organic reactions, and then coupled to benzo(c)(1,2,5)thiadiazole and its difluoro derivative as the electron-poor π-conjugated cores. The optoelectronic properties of the oligomers are reported. The novel compounds reveale

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7

Pahup, Singh, Krishna Vivek, Khandelwal Poonam, K. Sharma Kuldeep, and C. Sharma M. "Chemistry of lapacbol - Syntheses of some new biogenetically related naphthoquinones, naphthoquinone dimers, napbtbaquinoxaline and naphtha-azaquinoxaline derivatives from lapacbol." Journal of Indian Chemical Society Vol. 87, Jan 2010 (2010): 85–95. https://doi.org/10.5281/zenodo.5775453.

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Centre of Advanced Studies, Department of Chemistry, University of Rajasthan, Jaipur-302 004, Rajasthan, India <em>E-mail : </em>pahupsingh@yahoo.co.uk <em>Manuscript received 7 October 2009, accepted 9 October 2009</em> The present short review focus on chemical transformations of lapachol to a large number of biogenetically related lapachol conegeners, dimers and heterocyclic analogues that have been achieved in our laboratory during more than two decades. Conversion of lapachol to stenoearpoquinone-B, rhinacanthin-A, β-(1-hydroxyisopropanyl)- dihydrofurano-1,2-naphthoqulnone, stenocarp

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8

Zhang, Yu, Alexander Voice, Tom Tzanetakis, Michael Traver, and David Cleary. "An Evaluation of Combustion and Emissions Performance With Low Cetane Naphtha Fuels in a Multicylinder Heavy-Duty Diesel Engine." Journal of Engineering for Gas Turbines and Power 138, no. 10 (2016). http://dx.doi.org/10.1115/1.4032879.

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Future projections in global transportation fuel use show a demand shift toward diesel and away from gasoline. At the same time, greenhouse gas regulations will drive higher vehicle fuel efficiency and lower well-to-wheel CO2 production. Naphtha, a contributor to the gasoline stream and requiring less processing at the refinery level, is an attractive candidate to mitigate this demand shift while lowering the overall greenhouse gas impact. This study investigates the combustion and emissions performance of two naphtha fuels (Naphtha 1: RON59 and Naphtha 2: RON69) and one ultra-low sulfur diese

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9

Meza, L., J. G. Alvarado, R. Márquez, and A. Forgiarini. "Performance Evaluation of Demulsifier Using the Optimum Formulation HLD Concept: A Practical Case Using Heavy Crude Oil Diluted in Naphtha or in Synthetic Aromatic Oil." SPE Journal, February 1, 2022, 1–13. http://dx.doi.org/10.2118/209577-pa.

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Summary Asphaltene-stabilized water-in-oil (W/O) emulsions can cause severe problems during oil production and transportation. These emulsions are broken by adding a demulsifying agent at a suitable concentration (CD*) to obtain the optimal formulation, with minimal emulsion stability (stability*). Herein, we studied, from a phenomenological point of view, the performance of two demulsifiers on W/O emulsion breaking with high asphaltene content. A very simple polyethoxylated nonylphenol demulsifier (6EO) and a complex commercial demulsifier (COD) were studied. The influence of the chemical nat

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Conference papers on the topic "2-b]naphtha[1"

1

Zhang, Yu, Alexander Voice, Tom Tzanetakis, Michael Traver, and David Cleary. "An Evaluation of Combustion and Emissions Performance With Low Cetane Naphtha Fuels in a Multi-Cylinder Heavy-Duty Diesel Engine." In ASME 2015 Internal Combustion Engine Division Fall Technical Conference. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/icef2015-1055.

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Future projections in global transportation fuel use show a demand shift towards diesel and away from gasoline. At the same time greenhouse gas regulations will drive higher vehicle fuel efficiency and lower well-to-wheel CO2 production. Naphtha, a contributor to the gasoline stream and requiring less processing at the refinery level, is an attractive candidate to mitigate this demand shift while lowering the overall greenhouse gas impact. In this work, low cetane and high volatility gasoline-like fuels have shown potential to achieve high fuel efficiency with low engine-out emissions in a pro

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