YOKOYAMA M., J. CHEM. SOC. PERKIN TRANS. PART I <JCPK-BH>, 1975, NO 14, 1417-1418
作者:YOKOYAMA M.
DOI:——
日期:——
A Novel Synthesis of 4<i>H</i>-1,3-Thiazin-4-one Derivatives
作者:Masataka Yokoyama
DOI:10.1246/bcsj.44.1610
日期:1971.6
4H-2,5,6-Substituted-2,3-dihydro-1,3-thiazin-4-ones were synthesized by the condensation reaction of β-alkylthio-β-mercapto-α-cyanoacrylamide with a variety of ketones and aldehydes in an acidic medium.
αα′-Dicyano-(1,3-dithiacyclobutane-2,4-diylidene)diacetamides (desaurins) from thiazine derivatives
作者:Masataka Yokoyama
DOI:10.1039/p19750001417
日期:——
The title compounds (1) were synthesized in good yields by refluxing N-alkyl-2-cyano-3-mercapto-3-methylthio-acrylamides (3) with acetic anhydride. Compounds (3) were prepared by a novel hydrogenolysis of 2,2-disubstituted 3,4-dihydro-6-methylthio-4-oxo-2H-1,3-thiazine-5-carbonitriles (2) with lithium aluminium hydride or sodium borohydride.
通过使N-烷基-2-氰基-3-巯基-3-甲硫基丙烯酰胺(3)与乙酸酐回流,以高收率合成标题化合物(1)。化合物(3)是通过将2,2-二取代的3,4-二氢-6-甲硫基-4-氧代-2 H -1,3-噻嗪-5-腈(2)与氢化铝锂进行新型氢解反应制得的硼氢化钠。