In an article, author is Vovk, MV, once mentioned the application of 530-48-3, Name is Ethene-1,1-diyldibenzene, molecular formula is C14H12, molecular weight is 180.25, MDL number is MFCD00008583, category is isothiazole. Now introduce a scientific discovery about this category, SDS of cas: 530-48-3.
Synthesis of 2,3-dihydro-1 3-thiazin-4(1H)ones and their remarkably facile recyclization to 2,3-dihydropyrimidin-4(1H)-ones
Functionalized2,3-dihydro-1,3-thiazin-4 (1 H)-one derivatives have been synthesized by cyclo-condensation of 3-alkyl(aryl)amino-2-cyano-3-mercaptoacrylamides with aldehydes and ketones under acidic catalysis. 6-Alkyl(aryl)amino-5-cyano-2,3-dihydro- 1, 3-thiazin-4 (1H)-ones, when treated with a dilute solution of potassium hydroxide, are converted into the potassium salts of isomeric compounds, 1-alkyl(aryl)-5-cyano-6-mercapto-2,3-dihydropyrimidin-4(1H)-ones. Alkylation of the latter with dimethyl sulfate in situ furnishes 1-alkyl(aryl)-6-alkylthio-5cyano-2,3-dihydropyrimidin-4(1H)-ones, whereas boiling them in ethanol with an excess of hydrochloric acid leads to starting 2,3-dihydro-1,3-thiazin-4(1H)ones. (c) 2005 Wiley Periodicals, Inc.
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Reference:
Isothiazole – Wikipedia,
,Isothiazole – ScienceDirect.com