133042-97-4Relevant articles and documents
Synthesis of γ-sulfonyl δ-lactones and β-sulfonyl styrenes
Chan, Chieh-Kai,Chen, Yu-Hsin,Hsu, Ru-Ting,Chang, Meng-Yang
, p. 46 - 54 (2016/12/09)
A facile route to the synthesis of γ-sulfonyl lactones 5 and β-sulfonyl styrenes 6 has been developed, achieving moderate to good yields via the (1) NaH mediated Michael addition of β-ketosulfones 3 and methyl acrylate in refluxing THF and (2) NaBH4mediated stereoselective reduction/lactonization of δ-ketoesters 4 in boiling MeOH, or (3) boron trifluoride etherate mediated ring-opening of lactones 5 in MeOH at reflux.
Asymmetric Synthesis of (S)-Zearalenone Dimethyl Ether, an Orsellinic Acid Type Macrolide
Solladie, Guy,Maestro, M. Carmen,Rubio, Almudena,Pedregal, Concepcion,Carreno, M. Carmen,Ruano, Jose L. Garcia
, p. 2317 - 2322 (2007/10/02)
The synthesis of (S)-zearalenone dimethyl ether is described.The chiral part of the molecule was obtained by asymmetric synthesis monitored by a chiral sulfoxide group and introduced in the very last steps of the synthesis.
Chalcone derivatives
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, (2008/06/13)
The present invention provides new chalcone derivatives of the general formula: STR1 wherein R1 is a hydroxyl, carboxylic acid or sulphonic acid group or a carboxyalkoxy or sulphoalkoxy radical, R2 and R3, which may be the same or different, are hydrogen or halogen atoms, hydroxyl groups or alkoxy radicals and R4 is an alkyl, hydroxyalkyl, alkoxy, carboxyalkoxy, sulphoalkoxy or carboxyalkylcarbonyloxyalkyl radical or a carboxylic acid or sulphonic acid group, with the proviso that compounds of general formula (Ia) always contain at least one carboxylic acid or sulphonic acid group; and the non-toxic inorganic and organic salts of those compounds containing at least one carboxylic acid or sulphonic acid group, the compounds of the invention are useful for treating inflammatory and allergic conditions and for treating ulcerous conditions of the gastro-intestinal tract in humans.