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Kategaonkar, Amol H.,Sonar, Swapnil S.,Pokalwar, Rajkumar U.,Kategaonkar, Atul H.,Shingate, Bapurao B.,Shingare, Murlidhar S. Korean Chemical Society 2010 Bulletin of the Korean Chemical Society Vol.31 No.6
An efficient and novel one-pot synthesis of new 3,4-dihydro-3-substituted-2H-naphtho[2,1-e][1,3]oxazine derivatives from 1-naphthol, various anilines and formalin at room temperature grinding is presented. The six-membered N,O-heterocyclic skeleton was constructed via zirconyl(IV) chloride promoted Mannich type reaction. In vitro antimicrobial activities of synthesized compounds have been investigated against Gram-positive Bacillus subtilis, Gram negative Escherichia coli and two fungi Candida albicans and Aspergillus niger in comparison with standard drugs. The results of preliminary bioassay indicate that some of title compounds possess significant antibacterial and antifungal activity.
Amol H. Kategaonkar,Swapnil S. Sonar,Rajkumar U. Pokalwar,Atul H. Kategaonkar,Bapurao B. Shingate,Murlidhar S. Shingare 대한화학회 2010 Bulletin of the Korean Chemical Society Vol.31 No.6
An efficient and novel one-pot synthesis of new 3,4-dihydro-3-substituted-2H-naphtho[2,1-e][1,3]oxazine derivatives from 1-naphthol, various anilines and formalin at room temperature grinding is presented. The six-membered N,O-heterocyclic skeleton was constructed via zirconyl(IV) chloride promoted Mannich type reaction. In vitro antimicrobial activities of synthesized compounds have been investigated against Gram-positive Bacillus subtilis,Gram negative Escherichia coli and two fungi Candida albicans and Aspergillus niger in comparison with standard drugs. The results of preliminary bioassay indicate that some of title compounds possess significant antibacterial and antifungal activity.
Sadaphal, Sandip A.,Sonar, Swapnil S.,Pokalwar, Rajkumar U.,Shitole, Nanasaheb V.,Shingare, Murlidhar S. Korean Chemical Society 2009 대한화학회지 Vol.53 No.5
무용제하에서 $\alpha$-히드록시 인산염을 합성하기 위해 술팜산은 비용효율이 높고 일반적인 산들의 친환경적인 대안으로 활용되었다. 초음파 조사를 이용하여 더 나은 수율을 얻었고 반응시간이 짧았다. Sulphamic acid has been exploited as a cost-effective catalyst and green alternative for conventional acidic materials to synthesize $\alpha$-hydroxy phosphonates under solvent-free condition. The reaction carried out using ultrasound irradiation with better yields and shorter reaction time.
Alum Catalyzed Simple and Efficient Synthesis of Bis(indolyl)methanes by Ultrasound Approach
Sonar, Swapnil S.,Sadaphal, Sandip A.,Kategaonkar, Amol H.,Pokalwar, Rajkumar U.,Shingate, Bapurao B.,Shingare, Murlidhar S. Korean Chemical Society 2009 Bulletin of the Korean Chemical Society Vol.30 No.4
Alum $(KAl(SO_4)_2{\cdot}12H_2O)$ is an inexpensive, efficient, non‐toxic and mild catalyst for the synthesis of bis(indolyl)methanes by the reaction of 1H-indole with various aldehydes/ketones under the influence of ultrasound irradiation in solvent‐free condition. The remarkable advantages of this method are the simple experimental procedures, shorter reaction times, high yields of product and green aspects by avoiding toxic catalysts and solvents.
Alum Catalyzed Simple and Efficient Synthesis of Bis(indolyl)methanes by Ultrasound Approach
Swapnil S. Sonar,Sandip A. Sadaphal,Amol H. Kategaonkar,Rajkumar U. Pokalwar,Bapurao B. Shingate,Murlidhar S. Shingare 대한화학회 2009 Bulletin of the Korean Chemical Society Vol.30 No.4
Alum (KAl(SO4)2․12H2O) is an inexpensive, efficient, non‐toxic and mild catalyst for the synthesis of bis(indolyl)methanes by the reaction of 1H-indole with various aldehydes/ketones under the influence of ultrasound irradiation in solvent‐free condition. The remarkable advantages of this method are the simple experimental procedures, shorter reaction times, high yields of product and green aspects by avoiding toxic catalysts and solvents.