117235-95-7Relevant academic research and scientific papers
Reactions of 1,3-thiazine-2,6-dithiones. part 8.1 formation of a new series of 2-pyrroline-4-thiones by the rearrangement of 1,3-thiazine-6-spiro-2’-thiirane-2-thiones and 2-methylthio-1,3(6h)-thiazine-6-spiro-2’-thiiranes and some related reactions
Yamamoto, Tatsuo,Miyamae, Hiroshi,Muraoka, Motomu
, p. 641 - 663 (2018/04/23)
1,3(6H)-Thiazine-6-spiro-2’-thiirane-2-thiones 2a-c and 3’,3’-disubstituted 2-methylthio-1,3-thiazine-6-spiro-2’-thiiranes 12a-f were synthesized by the reaction of 1,3-thiazine-2,6-dithiones 1 or 11a-d, which are 2-methylthio derivatives of thiazinedithiones 1, with diazomethane derivatives. 1,3(6H)-Thiazine-6-spiro-2’-thiiranes 2a-c and 12a-f rearranged into a series of 2-pyrroline-4-thione derivatives 3a-c and methyl 4-thioxopyrroline-1-dithiocarboxylates 13a-f on treatment with a base or gentle heating. 2-Pyrroline-4-thione derivative 13c, upon heating to 140 oC for 1 h, reversely rearranged into the thiirane derivative 12c. The structure of the 2-pyrroline-4-thione 13e was determined by single-crystal X-ray analysis.
Reactions of 1,3-Thiazine-2,6-dithiones. Part 7. Formation Reactions of 3-Thioureidocinnamthioamides, 3-- and 3-dithiocinnamic Acid Esters by the Thiazine Ring Opening Reactions with primary Amines,
Yamamoto, Tatsuo,Muraoka, Motomu
, p. 835 - 846 (2007/10/02)
2-Alkylamino- and 2-arylamino-1,3-thiazine-6-thiones 3 were synthesized by the reactions of 1,3-thiazine-2,6-dithiones 1 or 2-methylthio-1,3-thiazine-6-thiones 2 with aliphatic or aromatic primary amines. 3-(3-Alkylthioureido)cinnamthioamides 4 were forme
