33 research outputs found

    NITROGEN, PHOSPHORUS, AND POTASSIUM RANGE OF VERMICOMPOST USING EISENIA FETIDA AND PERIONYX EXCAVATUS

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    The aim of the presentation is to produce vermicomposting from organic kitchen solid wastes using two types of earthworms such as Eisenia fetida and Perionyx excavatus and check the nitrogen, phosphorus, and potassium level between E. fetida and P. excavatus. This study examines the potential of the E. fetida and P. excavatus in the vermicompost of kitchen waste. As kitchen waste is rich in organic material. Physical and biochemical parameters were analyzed during the period of 60 days. Pre-decomposition is 15 days and subsequent vermicomposting is 60 days indicates, the rule of these species of vermitechnology increase was found in all the parameters such as total nitrogen (%), available phosphorus (%), and exchangeable potassium (%) while a decrease was found in pH and carbon-to-nitrogen ratio in E. fetida as the timing of vermicomposting increased from 0 days to 60 days

    Vilsmeier—Haack Reaction on Quinaldines.

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    2069-2073The study of the Vilsmeier-Haack reaction on 4-hydroxyquinaldines resulted with the preparation of rarely existing 4-chloro-3-formyl-2(vinyl-1-ol)-quinolines

    Synthesis and antibacterial activity of pyrimido[4,5<i>-b</i>]quinolines

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    688-689A concise one-pot synthesis of pyrimido[4,5-b]quinolines 3a-e has been achieved from the potential substrates 2-chloro-3-formylquinolines 1 and guanidine nitrate 2. All the synthesized compounds have been biologically screened for their antibacterial activity

    Synthesis and antibacterial activities of newer derivatives of pyrido[2,3-<i>d</i>; 6,5-<i>d</i>'] dipyrimidines

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    1734-1737An elegant one-pot synthesis of the title compounds 3a-f has been reported in good yields. Treatment of 1,3-diaryl-2-thiobarbituric acid with pyrrole-2-carbaldehyde and liquor ,ammonia in anhydrous ethanol for about 4hr affords the requisite 1,2,3,4,6,7 ,8,9-octahydro-l ,3,7,9-tetraphenyl-5-(2-pyrrolyl)-4,6-dioxo-2,8-dithio-10H,5H-pyrido[2 ,3-d;6,5-d'] dipyrimidines. All the synthesized compounds have also been screened for the antibacterial activities against Salmonella typhii and Aeromonas hydrophila.</i

    Vilsmeier-Haack reaction on quinaldines

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    2069-2073The study of the Vilsmeier-Haack reaction on 4-hydroxyquinaldines resulted with the preparation of rarely existing 4-chloro-3-formyl-2(vinyl-1-ol)-quinolines

    Synthesis, characterization and antimicrobial activities of fused 1,6-naphthyridines

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    2375-2379An easy two-step synthesis of 1,6-naphthyridines (4a-c, 7a-c, 10a-c, 14a-c) has been arrived from 3-formylquinolin-2(1H)-ones 1a-c and respective arylamines (2, 5, 8, 12) which underwent condensation and aromatized by dehydration with the help of PPA. All the synthesized compounds have been biologically screened for their antibacterial and antifungal activities

    Synthesis, characterization and antimicrobial activity of 4-phenyl-3-thiopyrimido[4,5<i>b</i>] quinolines

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    2133-2135An easy one-step synthesis of substituted pyrimido[4,5-b]quinolines 3a-e has been achieved from 2-chloro-3-formyl quinolines 1 and N-Phenyl thiourea 2. All the synthesized compounds have been biologically screened for their antibacterial and antifungal activities

    A novel approach to 12-chloro-3-thio-4H-quino [3,2-e][1,3]diazocines via Vilsmeier Haack reaction

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    995-1000The Vilsmeier Haack reaction on 4-hydroxyquinaldines lead to potential intermediate 4-chloro-3-formyl-2-(2-hydroxy-ethene-1-yl) quinolines. The intermediate is further utilized to prepare quino[3,2-e][1,3]diazocines on treatment with thiourea. The structures of the new compounds are determined by the analytical and spectroscopic data

    Synthesis of novel benzopyrano pyrano pyrimidines and benzopyrano pyrano thiopyrimidines

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    184-186A convenient and facile synthesis of benzopyrano pyrano pyrimidines and benzopyrano pyrano thiopyrimidines starting from 4-hydroxycoumarin and 1,3 -diphenyl barbituric acid/1 ,3-diphenyl-2-thiobarbituric acid in 2% NaOH solution with vinyl acetate is described
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