Miura, Tomoya; Fujimoto, Yoshikazu; Funakoshi, Yuuta; Murakami, Masahiro published an article in 2015, the title of the article was A Reaction of Triazoles with Thioesters to Produce β-Sulfanyl Enamides by Insertion of an Enamine Moiety into the Sulfur-Carbonyl Bond.Reference of 3-Aminodihydrothiophen-2(3H)-one hydrochloride And the article contains the following content:
N-Sulfonyl-1,2,3-triazoles I (R1 = n-Pr, 1-cyclohexenyl, Ph, 4-MeC6H4, 3-thienyl, etc., R2 = 4-MeC6H4; R1 = Ph, R2 = Me, n-Bu, 2-MeC6H4, etc.) react with thioesters R3C(O)SR4 [R3 = Me, R4 = Et, n-Bu, Ph, 4-MeOC6H4, etc.; R3 = t-BuO, R4 = Ph; R3R4 = (CH2)3, CHClCH2CH2, PhCH2CHCH2, etc.] in the presence of a rhodium(II) catalyst to produce β-sulfanyl enamides II in a stereoselective manner. The reaction proceeds through generation of an α-imino rhodium carbene complex, nucleophilic addition of the sulfur atom of a thioester onto the carbenoid carbon atom, and subsequent intramol. migration of the acyl group from the sulfur atom to the imino nitrogen atom. The method is successfully applied to a ring-expansion reaction of thiolactones, thus leading to the formation of sulfur-containing lactams. The experimental process involved the reaction of 3-Aminodihydrothiophen-2(3H)-one hydrochloride(cas: 6038-19-3).Reference of 3-Aminodihydrothiophen-2(3H)-one hydrochloride
The Article related to triazole sulfonyl stereoselective nucleophilic addition rearrangement thioester rhodium, amide sulfonyl thiovinyl stereoselective preparation, lactam thia sulfonyl preparation, thiolactone ring expansion sulfonyl triazole rhodium catalyst, carbenoids, copper, heterocycles, rhodium, sulfur and other aspects.Reference of 3-Aminodihydrothiophen-2(3H)-one hydrochloride
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