Reaction of thiosalicylic acid with 1,4-quinones and cyclization of the resulting arylsulfanylbenzoic acids
作者:V. A. Loskutov、I. V. Beregovaya
DOI:10.1134/s1070428009090152
日期:2009.9
Thiosalicylicacid reacts with 1,4-benzoquinone to give 2-(1,4-dihydroxyphenylsulfanyl)benzoic acid which undergoes intramolecular cyclization to 1,4-dihydroxythioxanthen-9-one in the presence of dehydrating agents. Cyclization of arylsulfanylbenzoic acids obtained by reaction of thiosalicylicacid with 1,4-naphtho- and anthraquinones leads to 1,4-quinone derivatives, benzo- and naphthothioxanthenetriones