Yoshiki Matsuoka

TL;DR: Polarized ethylenes having both electron-donating (an amino or a methylthio group) and electron-accepting (cyano, carbamoyl, methyl ester) groups on the adjacent two olefinic carbon atoms were prepared by the condensation of S-alkylthioamidinium salts or methyl dithiocarboxylates with the corresponding active methylene compounds in good yields.

TL;DR: In this article, the reduction of alkylthiomerthyleniminium iodides proceeds smoothly by use of trimethoxysilane and dilithium 2,3-butandiolate in tetrahydrofuran at 0°C to give the corresponding S,N-acetals selectively in high yield

TL;DR: In this article, a silyl ketene dithiocetal 1,1-bis(methylthio)-2-trimethylsilylethene, was synthesized by the reaction of the enolate of methyl trimethyl silylsilylmethyldithIocarboxylate, which was prepared by treating trim methylsilylmethylmagnesium chloride with carbon disulfide followed by successive treatment with methyl iodide and then lithium diisopropylamide in ether combined with methyl ion.

TL;DR: Generation, in situ, de methylthio-2- ou dialkylamino-1 (=R-1) imino-3 pyrrolizinecarbonitriles-2 par cyclisation basique des R-2 [pyrrolyl-2]-2 ethylenedicarbonitriniles-1,1 correspondants and cycloaddition avec DMAD en presence de Pd sur charbon as discussed by the authors.