Publisher: CCSE   (Total: 43 journals)   [Sort by number of followers]

Showing 1 - 40 of 40 Journals sorted alphabetically
Applied Physics Research     Open Access   (Followers: 9)
Asian Culture and History     Open Access   (Followers: 12)
Asian Social Science     Open Access   (Followers: 5)
Cancer and Clinical Oncology     Open Access   (Followers: 9)
Computer and Information Science     Open Access   (Followers: 15)
Earth Science Research     Open Access   (Followers: 8)
Energy and Environment Research     Open Access   (Followers: 14)
Engineering Management Research     Open Access   (Followers: 6)
English Language and Literature Studies     Open Access   (Followers: 18)
English Language Teaching     Open Access   (Followers: 32)
Environment and Natural Resources Research     Open Access   (Followers: 6)
Environment and Pollution     Open Access   (Followers: 10)
Global J. of Health Science     Open Access   (Followers: 6, SJR: 0.416, CiteScore: 1)
Higher Education Studies     Open Access   (Followers: 68)
Intl. Business Research     Open Access   (Followers: 6)
Intl. J. of Biology     Open Access   (Followers: 1)
Intl. J. of Business and Management     Open Access   (Followers: 15)
Intl. J. of Chemistry     Open Access   (Followers: 10)
Intl. J. of Economics and Finance     Open Access   (Followers: 13)
Intl. J. of English Linguistics     Open Access   (Followers: 11)
Intl. J. of Marketing Studies     Open Access   (Followers: 13)
Intl. J. of Psychological Studies     Open Access   (Followers: 4)
Intl. J. of Statistics and Probability     Open Access   (Followers: 3)
Intl. Law Research     Open Access   (Followers: 1)
J. of Agricultural Science     Open Access   (Followers: 5)
J. of Education and Learning     Open Access   (Followers: 2)
J. of Educational and Developmental Psychology     Open Access   (Followers: 15)
J. of Food Research     Open Access   (Followers: 3)
J. of Geography and Geology     Open Access   (Followers: 12)
J. of Materials Science Research     Open Access   (Followers: 9)
J. of Mathematics Research     Open Access  
J. of Molecular Biology Research     Open Access   (Followers: 4)
J. of Plant Studies     Open Access   (Followers: 1)
J. of Politics and Law     Open Access   (Followers: 9)
J. of Sustainable Development     Open Access   (Followers: 25)
Mechanical Engineering Research     Open Access   (Followers: 20)
Modern Applied Science     Open Access   (Followers: 1)
Network and Communication Technologies     Open Access   (Followers: 4)
Public Administration Research     Open Access   (Followers: 2)
Review of European Studies     Open Access   (Followers: 13)
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International Journal of Chemistry
Number of Followers: 10  

  This is an Open Access Journal Open Access journal
ISSN (Print) 1916-9698 - ISSN (Online) 1916-9701
Published by CCSE Homepage  [43 journals]
  • A Facile Synthesis, Spectroscopic Identification, and Antimicrobial
           Activities of Some New Heterocyclic Derivatives from
           D-erythro-2,3-hexodiuloso-1,4-lactone-2-(o-chlorophenyl hydrazone)-3-oxime
           

    • Abstract: A new series of different heterocyclic derivatives was prepared via a facile unimolecular condensation of D-iso ascorbic acid with o-chlorophenyl hydrazine to give D-erythro-2,3-hexodiulosono-1,4-lactone 2-( o-chlorophenyl hydrazine (2). Reactions of (2) with hydroxylamine gave the 2-( o-chlorophenyl hydrazone)-3-oxime (3). On boiling with boiling acetyl chloride, (3) gave 2-o-chlorophenyl-4-(2,3-di-O-acetyl-D-erythro-glyceryl-1-yl)-1,2,3-triazole-5-carboxylic acid-5,1́-lactone (4). In the treatment of (3) with benzoyl chloride in pyridine the same dehydrative cyclization occurred giving, 2-o-chlorophenyl-4-(2,3-di-o-benzoyloxy-D-erythro-glycerol-1-yl)-1,2,3-triazole-5-carboxylic acid-5,1΄-lactone (5). On the treatment of compound (4) with liquid ammonia in methanol, deacetylation occurred concurrently with the opening of the lactone ring, to afford the 2-o-chlorophenyl-4-(D-erythro-glycerol-1-yl)-1,2,3-triazole-5-carboxamide (6). Similarly, treatment of compound (4) with hydrazine hydrate in methanol, afforded 2-o-chlorophenyl-4-(D-erythro-glycerol-1-yl)-1,2,3-triazole-5-carboxylic acid hydrazide (7).  The controlled reaction of (3) with sodium hydroxide, followed by neutralization, gave 3-(D-erythro-glycerol-1-yl)-4,5-isoxazoline-5-(4H)-one-4-o-chlorophenyl hydrazone (8). Reaction of (3) with HBr-AcOH gave 5-O-acetyl-6-bromo-6-deoxy-D-erythro-2,3-hexodiulosono-1,4-lactone-2-(o-chlorophenyl hydrazone)-3-oxime (9); these were converted into 4-(2-O-acetyl-3-bromo-3-deoxy-l-threo-glycerol-l-yl)-2-aryl-1,2,3-triazole-5-carboxylic acid 5,41-lactones on treatment with acetic anhydride-pyridine. Compound (3) treatment with bromine-water caused its cyclization and bromination of the phenyl group to give carboxylic acid 5,1΄-lactone (10). Acetylation of (10) gave the diacetate (11), which upon treatment with hydrazine hydrate in methanol, afforded compound (12), mild acetylation of compound (12) gave the triacetate (13) boiling of (13) with acetic anhydride afforded hexa acetyl derivative (14). on the treatment of compound (11) with liquid ammonia in methanol deacetylation occurred to afford 1,2,3-triazole-5-carboxamide derivative (15). On the other hand, treatment of compound (3) with bromine-water for a short time yielded 3-oxime (16). Subsequent acetylation with boiling acetic anhydride afforded compound (11). In addition, acetylation of compound 3 afforded a diacetyl derivative assigned as 5,6-di-O-acetyl-D-erythro-2,3-hexodilusono-1,4-lactone-(2-o-chlorophenyl hydrazone)-3-acetoxime (17), which on boiling with acetic anhydride cyclization occurred giving compound (4). On the treatment of Dehydro-L-ascorbic acid-2-phenyl hydrazone (L-threo-2,3-hexodiulosono- 1,4-lactone 2-phenylhydrazone (19) with acetic anhydride/pyridine, afforded 5,6-di-O-acetyl-3-acetoxime (20) that upon treatment with boiling acetic anhydride, afforded the triazole derivative (21). Furthermore, treatment of the monophenyl hydrazone (18) with S-benzyl hydrazine carbodithiolate in the presence of acetic acid, afforded the bis-hydrazone, L-threo-2,3-hexodilusono-1,4-lactone-3-(S-benzylhydrazinocarbodithiolate)-2-phenylhydrazone (22). Acetylation of compound (22) with acetic anhydride and pyridine did not give the di-O-acetyl derivative expected but instead, elimination of a molecule of acetic acid and partial hydrolysis of a hydrazone residue took place to give compound (23). The structures of all the synthesized compounds were confirmed using elemental analysis and different spectral tools. Eight samples from the synthesized compounds, 2,3, 4,10.16,11,12,17 were tested for their antimicrobial activity and they showed no activities.
      PubDate: Thu, 04 Jul 2024 07:18:17 +000
       
  • Counting and Demonstrating Electron Transfer in Buswell’s Equation

    • Abstract: Anaerobic digestion is a microorganism-mediated redox system which is chemically represented by Buswell’s equation. In the equation, quantity of methane and carbon dioxide can be counted by the elemental composition of organic matter, however there is a lack of connection between electron transfer and formations of methane and carbon dioxide. Although the mechanism of direct interspecies and mediated interspecies electron transfer in anaerobic digestion has been widely researched, the method of counting electron transfer in Buswell’s equation has not yet been explored. This article develops a method to count electron transfer of organic molecules in Buswell’s equation. Mathematical equations are established through integration of relationships among mean oxidation number of organic carbons, quantity of methane, and number of transferred electrons. With any known organic structural formula, three tasks can be achieved: (1) determine the Buswell-Ratio, (2) count Buswell-Electron, and (3) demonstrate electron transfer among organic carbons by drawing the Buswell-Electron diagram.
      PubDate: Thu, 27 Jun 2024 02:52:29 +000
       
  • The Paradox of Thermodynamic Instability

    • Abstract: The constraints on the Gibbs free energy equation required to intercompare the stabilities of chemical species are reviewed, and the concept of thermodynamically unstable but kinetically stable compounds is defined. A method for synthesizing these compounds is then discussed based on a rule first stated by the French chemist, Pierre Macquer, in 1749, and its modern application illustrated using several concrete examples. A simple graphical method for visualizing trends in thermodynamically stable versus thermodynamically unstable compounds is then introduced and illustrated with example plots. The paper concludes with a brief note on terminology.
      PubDate: Wed, 22 May 2024 12:19:21 +000
       
  • Synthesis of 8-Methoxy-1-Tetralone

    • Abstract: Several methods have been developed for the synthesis of 8-methoxy-1- tetralone 4. The applications of some named organic reactions can be observed during the synthesis of tetralone 4. Attempts have been made to achieve the direct conversion of 5-methoxy-1-tetralone into the tetralone 4. The method for the ring expansion of tertiary cyclobutanol 30 catalyzed by silver salts has proved useful to obtain the title tetralone 4.
      PubDate: Wed, 08 May 2024 23:18:09 +000
       
  • Study of Activation Energy for Viscous Flow of Mixtures as a Measure of
           Dilution Efficiency for Heavy Oil-Diluent Systems

    • Abstract: As the demand for crude oil continues to increase in response to the continued global needs for it, the development of unconventional crude oil reserves is the only way to sustain global supply. However, the excessively higher viscosity of heavy crude oil makes it less attractive for conventional pipeline transportation. Therefore, reducing the viscosity of heavy crude oil to meet crude oil transporting pipeline regulations is a necessity. This paper has assessed the dilution efficiency of well-known diluents in the petroleum industry, using different dilution ratios based on a thermodynamic approach involving activation energy and heat of vaporization determination. Based on selected dilution ratios, kinematic viscosities of binary and ternary systems of toluene and natural gas condensate as diluents, and Saudi Heavy crude oil as the base oil were measured, using anticipated field based temperatures reported in the literature, which facilitated the experimental approach. The study shows that although the ternary systems have the lowest activation energy for viscous flow and heat of vaporization in accordance with the thermal activation theory of viscous flow, natural gas condensate binary systems have the lowest cost of transportation per barrel of total fluid in the transporting pipeline. The study further shows that the binary systems for toluene and Saudi Heavy crude oil have higher activation energy for viscous flowed compared to the toluene systems.
      PubDate: Mon, 06 May 2024 10:41:59 +000
       
 
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Publisher: CCSE   (Total: 43 journals)   [Sort by number of followers]

Showing 1 - 40 of 40 Journals sorted alphabetically
Applied Physics Research     Open Access   (Followers: 9)
Asian Culture and History     Open Access   (Followers: 12)
Asian Social Science     Open Access   (Followers: 5)
Cancer and Clinical Oncology     Open Access   (Followers: 9)
Computer and Information Science     Open Access   (Followers: 15)
Earth Science Research     Open Access   (Followers: 8)
Energy and Environment Research     Open Access   (Followers: 14)
Engineering Management Research     Open Access   (Followers: 6)
English Language and Literature Studies     Open Access   (Followers: 18)
English Language Teaching     Open Access   (Followers: 32)
Environment and Natural Resources Research     Open Access   (Followers: 6)
Environment and Pollution     Open Access   (Followers: 10)
Global J. of Health Science     Open Access   (Followers: 6, SJR: 0.416, CiteScore: 1)
Higher Education Studies     Open Access   (Followers: 68)
Intl. Business Research     Open Access   (Followers: 6)
Intl. J. of Biology     Open Access   (Followers: 1)
Intl. J. of Business and Management     Open Access   (Followers: 15)
Intl. J. of Chemistry     Open Access   (Followers: 10)
Intl. J. of Economics and Finance     Open Access   (Followers: 13)
Intl. J. of English Linguistics     Open Access   (Followers: 11)
Intl. J. of Marketing Studies     Open Access   (Followers: 13)
Intl. J. of Psychological Studies     Open Access   (Followers: 4)
Intl. J. of Statistics and Probability     Open Access   (Followers: 3)
Intl. Law Research     Open Access   (Followers: 1)
J. of Agricultural Science     Open Access   (Followers: 5)
J. of Education and Learning     Open Access   (Followers: 2)
J. of Educational and Developmental Psychology     Open Access   (Followers: 15)
J. of Food Research     Open Access   (Followers: 3)
J. of Geography and Geology     Open Access   (Followers: 12)
J. of Materials Science Research     Open Access   (Followers: 9)
J. of Mathematics Research     Open Access  
J. of Molecular Biology Research     Open Access   (Followers: 4)
J. of Plant Studies     Open Access   (Followers: 1)
J. of Politics and Law     Open Access   (Followers: 9)
J. of Sustainable Development     Open Access   (Followers: 25)
Mechanical Engineering Research     Open Access   (Followers: 20)
Modern Applied Science     Open Access   (Followers: 1)
Network and Communication Technologies     Open Access   (Followers: 4)
Public Administration Research     Open Access   (Followers: 2)
Review of European Studies     Open Access   (Followers: 13)
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Email: journaltocs@hw.ac.uk
Tel: +00 44 (0)131 4513762
 


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