97871-93-7Relevant academic research and scientific papers
METHOD FOR SYNTHESIZING THIOAURONES
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Paragraph 0146; 0154-0157; 0159; 0180-0184, (2021/02/12)
An embodiment of the present invention is a process for producing 2 - benzoic acid compound by reacting a thiosalicylic acid with a strongly basic substance and a benzylhalide. The 2 - methoxy - N N-methyl -2 - benzamides, which are reacted with N - methoxy - N N-methylcarbamoyl chloride to produce N - methoxy-N-methylbenzamides. The N - methoxy - N N-methyl -2 - (benzocyclohexyl) benzamide is treated with arylethynyl salt to prepare 1 - (2- benzocyclohexyl) phenyl -3 - phenyl -2 - profin -1 . The 1 - (2-) phenyl -3 - phenyl -2 - profin -1 - one is treated with an acid material. Provided is a method for preparing a thiouronone compound.
Competitive cascade cyclization of 2′-tosyloxychalcones: An easy access to thioflavones and thioaurones
Venkateswarlu, Somepalli,Murty, Gandrotu Narasimha,Satyanarayana, Meka,Siddaiah, Vidavalur
supporting information, p. 2347 - 2354 (2020/07/03)
A new and efficient approach for the synthesis of thioflavones and thioaurones by competitive cascade cyclization of 2′-tosyloxychalcones has been developed. 2′-Tosyloxychalcones were smoothly converted into thioflavones and thioaurones by incorporation of sulfur atom using elemental sulfur and triethylamine in DMSO with good yields. The advantages of the methodology are the formation of both thioflavones and thioaurones in a single step. Easily accessible substrates, mild reaction conditions and compatibility with a broad range of functional groups make this protocol clean and inexpensive.
Oxidized Hemithioindigo Photoswitches—Influence of Oxidation State on (Photo)physical and Photochemical Properties
K?ttner, Laura,Schildhauer, Monika,Wiedbrauk, Sandra,Mayer, Peter,Dube, Henry
supporting information, p. 10712 - 10718 (2020/07/27)
The photophysical and photochemical properties of sulfoxide and sulfone derivatives of hemithioindigo photoswitches are scrutinized and compared to the unoxidized parent chromophores. Oxidation results in significantly blue-shifted absorptions and mostly
Making fast photoswitches faster - Using hammett analysis to understand the limit of donor-acceptor approaches for faster hemithioindigo photoswitches
Maerz, Benjamin,Wiedbrauk, Sandra,Oesterling, Sven,Samoylova, Elena,Nenov, Artur,Mayer, Peter,De Vivie-Riedle, Regina,Zinth, Wolfgang,Dube, Henry
supporting information, p. 13984 - 13992 (2016/02/18)
Hemithioindigo (HTI) photoswitches have a tremendous potential for biological and supramolecular applications due to their absorptions in the visible-light region in conjunction with ultrafast photoisomerization and high thermal bistability. Rational tail
Iodine-catalyzed intramolecular oxidative thiolation of vinylic carbon-hydrogen bonds via tandem iodocyclization and dehydroiodination: Construction of 2-methylene-3-thiophenones
Zheng, Gang,Ma, Xiaoli,Liu, Bangyu,Dong, Ying,Wang, Mang
, p. 743 - 748 (2014/04/03)
A metal-free vinylic carbon-hydrogen bond thiolation has been developed. Under the catalysis of iodine (10 mol%), the cyclization of α-alkenoyl ketene dithioacetals afforded a broad range of polyfunctionalized 2-methylene-3-thiophenones in good selectivity with moderate to excellent yields via tandem iodocyclization and dehydroiodination. The synthetic strategy can also be extended to the cyclization of ortho-methylthiophenyl vinyl ketones leading to 2-methylene-3-benzothiophenones.
One-step synthesis of thioaurones
Cabiddu, M. Grazia,Cabiddu, Salvatore,Cadoni, Enzo,De Montis, Stefania,Fattuoni, Claudia,Melis, Stefana,Usai, Michele
, p. 875 - 878 (2007/10/03)
A rapid, one-step preparation of 2-(arylmethylidene)-1-benzothiophen-3-ones (thioaurones) using directed α-metallation, ring closure and aldol-type condensation is described. The reaction leads exclusively to the Z-isomer.
