Sulfurization of 1,3-diarylpropanetrione (1) with hydrogen sulfide and hydrogen chloride afforded a mixture of 4-hydroxy-3,5-diaryl-1,2-dithiolium chlorides (3) and 3,5-diaryl-1,2-dithiolium chlorides (4). Treatment of a mixture of 3a and 4a with triethylamine in alcohol gave anhydro-4-hydroxy-3,5-diphenyl-1,2-dithiolium hydroxide (5a) and the 4-substituted product (6). Sulfurization of dibenzoyldibromomethane
New 7,8-dithianicyclo[4.2.1]non-3-en-9-ones via novel thermal 1,3-dipolar [4 + 3] cycloaddition reactions of mesoinic 1,2-dithiol-4-ones
作者:Kurt Hantke、Hans Gotthardt
DOI:10.1039/c39840001682
日期:——
1,2-Dithiolylium-4-olates combine with 1,3-dienes to produce new 7,8-dithiabicyclo[4.2.l]non-3-en-9-one derivatives as a result of a 1,3-dipolar [4 + 3] cycloadditionreaction, whereas the reaction of 3,5-bis(methylthio)-1,2-dithiolylium-4-olate with 2,3-dimethylbuta-1,3-diene affords two isomeric 1:2 adducts.
Cyclic meso-ionic heterocycles. Part 24. The reaction of 1,2-dithiolium-4-olates with aniline. The formationof 11-phenylbenz[b]indeno[2,1-e]-1,4-thiazine
作者:Christopher G. Newton、W.David Ollis、Graham P. Rowson、Margaret J. Hamor、Thomas A. Hamor
DOI:10.1016/s0040-4020(01)80482-8
日期:1992.1
Reaction of the type B meso-ionic heterocycle 3,5-diphenyl-1,2-dithiolium-4-olate (1) with aniline yields N-phenyl-(3-phenyl-1-phenylimino-inden-2-yl)-amine (10) and 11-phenylbenz[b]indeno[2,1-e]-1,4-thiazine (12). Mechanistic investigations establish that the 3-phenylindenylamine (10) is an intermediate in the formation of the tetracyclic 1,4-thiazine (12).
McKinnon, David M.; Clark, Peter D.; Martin, Robert O., Canadian Journal of Chemistry, 1987, vol. 65, p. 2830 - 2833
作者:McKinnon, David M.、Clark, Peter D.、Martin, Robert O.、Delbaere, Louis T.J.、Quail, J.Wilson