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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.
Sadaphal, Sandip A.,Sonar, Swapnil S.,Kategaonkar, Amol H.,Shingare, Murlidhar S. Korean Chemical Society 2009 Bulletin of the Korean Chemical Society Vol.30 No.5
We have demonstrated a one-pot three component coupling of an aldehydes, an amines, and triethyl phosphite using 1-benzyl-3-methyl imidazolium hydrogen sulphate [bnmim][][$HSO_{4}$] as an efficient catalyst. All the reactions proceed under solvent-free conditions at room temperature. This methodology afforded the corresponding $\alpha$-aminophosphonates in shorter reaction times with excellent yields.
Pd-TiO2, Photo catalysis, Water splitting, H2 production, Pd-impregnated TiO2
Sandip A. Sadaphal,Swapnil S. Sonar,Amol H. Kategaonkar,Murlidhar S. Shingare 대한화학회 2009 Bulletin of the Korean Chemical Society Vol.30 No.5
We have demonstrated a one-pot three component coupling of an aldehydes, an amines, and triethyl phosphite using 1-benzyl-3-methyl imidazolium hydrogen sulphate [bnmim][HSO4] as an efficient catalyst. All the reactions proceed under solvent-free conditions at room temperature. This methodology afforded the corresponding α-aminophosphonates in shorter reaction times with excellent yields.
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 Convenient Synthesis of Quino[2,3-b][1,5 benzoxazepine α-Aminophosphonate Derivatives
Sonar, Swapnil S.,Sadaphal, Sandip A.,Shitole, Nana V.,Jogdand, Nivrutti R.,Shingate, Bapurao B.,Shingare, Murlidhar S. Korean Chemical Society 2009 Bulletin of the Korean Chemical Society Vol.30 No.8
We have described an efficient synthesis of quino[2,3-b][1,5]benzoxazepine α-aminophosphonate derivatives by the nucleophilic addition of triethyl phosphite to substituted quino[2,3-b][1,5]benzoxazepines promoted by easily available, inexpensive and mild catalyst KAl(S$O_4)_2{\cdot}12H_2$O(alum). The reactions proceed smoothly at room temperature under solvent-free reaction conditions and providing high yield of product in very short reaction time.
Alum Catalyzed Convenient Synthesis of Quino[2,3-b][1,5]benzoxazepine α-Aminophosphonate Derivatives
Swapnil S. Sonar,Sandip A. Sadaphal,Nana V. Shitole,Nivrutti R. Jogdand,Bapurao B. Shingate,Murlidhar S. Shingare 대한화학회 2009 Bulletin of the Korean Chemical Society Vol.30 No.8
We have described an efficient synthesis of quino[2,3-b][1,5]benzoxazepine α-aminophosphonate derivatives by the nucleophilic addition of triethyl phosphite to substituted quino[2,3-b][1,5]benzoxazepines promoted by easily available, inexpensive and mild catalyst KAl(SO4)2・12H2O (alum). The reactions proceed smoothly at room temperature under solvent-free reaction conditions and providing high yield of product in very short reaction time.
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.
L-Proline as an Efficient Catalyst for the Synthesis of 2,4,5-Triaryl-1H-Imidazoles
Shitole, Nana V.,Shelke, Kiran F.,Sonar, Swapnil S.,Sadaphal, Sandip A.,Shingate, Bapurao B.,Shingare, Murlidhar S. Korean Chemical Society 2009 Bulletin of the Korean Chemical Society Vol.30 No.9
L-Proline has been found to be an efficient organocatalyst for one-pot synthesis of 2,4,5-triaryl substituted imidazole by the reaction of an aldehyde, a benzil and an ammonium acetate. The short reaction time and excellent yields making this protocol practical and economically attractive.
L-Proline as an Efficient Catalyst for the Synthesis of 2,4,5-Triaryl-1H-Imidazoles
Nana V. Shitole,Kiran F. Shelke,Swapnil S. Sonar,Sandip A. Sadaphal,Bapurao B. Shingate,Murlidhar S. Shingare 대한화학회 2009 Bulletin of the Korean Chemical Society Vol.30 No.9
L-Proline has been found to be an efficient organocatalyst for one-pot synthesis of 2,4,5-triaryl substituted imidazole by the reaction of an aldehyde, a benzil and an ammonium acetate. The short reaction time and excellent yields making this protocol practical and economically attractive.