83392-35-2Relevant academic research and scientific papers
Silica-ZnCl2: An efficient and reusable solid catalyst for one pot synthesis of 5-methyl mercaptothiocarbonyl-4-aryl-3- dihydropyrimidin-2(1H)-ones under solvent-free conditions
Devi, Laishram Ronibala,Chanu, Leimajam Vartima,Choi, Hojune,Lee, Dahyun,Singh, Okram Mukherjee,Lee, Sang-Gyeong
, p. 2915 - 2919 (2016/01/25)
Synthetic application of Silica-ZnCl2, as an efficient and eco-friendly catalyst for the synthesis of a small library of dihydropyrimidinones is described in this report. The reaction involves a one pot, multicomponent reaction of β-oxodithioca
Facile route to highly functionalized 2H-chromene-2-thiones via ring annulations of β-oxodithioesters with phenols catalyzed by AlCl3 under solvent-free conditions
Devi, Nepram Sushuma,Singh, Sarangthem Joychandra,Devi, Laishram Ronibala,Singh, Okram Mukherjee
, p. 183 - 187 (2013/02/21)
A facile synthesis of chromene-2-thiones by the Pechmann condensation of phenols and β-oxodithioesters catalyzed by AlCl3 under solvent-free condition has been reported. The best results were obtained in the case of substituted phenols such as
An efficient transesterification of β-oxodithioesters catalyzed by stannous chloride under solvent-free conditions
Devi, Nepram Sushuma,Singh, Sarangthem Joychandra,Singh, Okram Mukherjee
, p. 1432 - 1435 (2013/05/08)
Transesterification of β-oxodithioesters catalyzed by stannous chloride under solvent-free condition has been reported for the first time. The short reaction time and good to excellent yields using inexpensive catalysts are attractive features of this synthetic protocol. Copyright
4-Dimethylamino pyridine-promoted one-pot three-component regioselective synthesis of highly functionalized 4 H -thiopyrans via heteroannulation of β-oxodithioesters
Verma, Rajiv Kumar,Verma, Girijesh Kumar,Shukla, Gaurav,Nagaraju, Anugula,Singh, Maya Shankar
experimental part, p. 224 - 230 (2012/04/23)
A highly convergent and regioselective heteroannulation protocol for the synthesis of hitherto unreported highly substituted 2-amino-4-(aryl/alkyl)-5- (aroyl/heteroaroyl)-3-(cyano/carboalkoxy)-6-methylthio-4H-thiopyran derivatives has been developed. This
Molecular docking and in vitro antileishmanial evaluation of chromene-2-thione analogues
Verma, Rajiv Kumar,Prajapati, Vijay Kumar,Verma, Girijesh Kumar,Chakraborty, Deblina,Sundar, Shyam,Rai, Madhukar,Dubey, Vikash Kumar,Singh, Maya Shankar
scheme or table, p. 243 - 247 (2012/05/04)
Leishmaniases are an epidemic in various countries, and the parasite is developing resistance against available drugs. Thus, development of new drugs against Leishmania is an open area of investigation for synthetic organic chemists. To meet this challeng
Novel 3-alkanoyl/aroyl/heteroaroyl-2H-chromene-2-thiones: Synthesis and evaluation of their antioxidant activities
Singh, Okram Mukherjee,Devi, Nepram Sushuma,Thokchom, Dhanaraj Singh,Sharma, Gurumayum Jitendra
experimental part, p. 2250 - 2257 (2010/06/15)
A facile, convenient and high yielding synthesis of a combinatorial library of 3-alkanoyl/aroyl/heteroaroyl-2H-chromene-2-thiones has been developed by the condensation of easily accessible β-oxodithioesters and salicylaldehyde/substituted 2-hydroxybenzal
Application of β-Oxodithioesters in domino and multicomponent reactions: Facile route to dihydropyrimidines and coumarins
Singh, Okram Mukherjee,Devi, Nepram Sushuma
body text, p. 3141 - 3144 (2009/08/15)
A facile route to hitherto unknown 5-methylmercaptothiocarbonyl-4-aryl-3,4- dihydropyrimidin-2(1H)-ones and substituted 2H-chromene-2-thiones has been developed. SnCl2catalyzed cyclocondensation of β-oxodithioesters with a variety of readily ac
A facile method for the synthesis of substituted 2-ylidene-1,3-oxathioles from acetophenones
Samuel,Asokan,Suma,Chandran,Retnamma,Anabha
, p. 8376 - 8378 (2008/03/14)
Compounds incorporating 1,3-oxathiole moieties in their frameworks are biologically active. Active methylene ketones can be easily converted to the corresponding dithiocarboxylates by treatment with trithiocarbonate in the presence of sodium hydride. The
An efficient synthesis of highly substituted pyrroles from β-oxodithiocarboxylates
Mathew, Paulson,Asokan
, p. 1708 - 1716 (2007/10/03)
α-Oxoketene-N,S-acetals, prepared by the reaction of alkyl glycinate hydrochlorides with β-oxodithiocarboxylates followed by alkylation, underwent cyclization in presence of chloromethyleneiminium salt derived from POCl3/DMF to afford alkyl-3-a
A METHOD FOR PRODUCING DIVERSE SET OF DITHIOATE COMPOUNDS
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Page 7, (2010/02/09)
The present invention relates to a method of preparing combinatorail library of alkyl-β-oxodithioates of general formulae 7 to 10, from carbonyl compounds containing active methylene group and methyldithoate imidazoles of formula 1 or 2, which form the ba
