50389-12-3Relevant academic research and scientific papers
Reaction of semiquinoid compounds derived from N-arylsulfonyl-p-quinonemono- and diimines with tosylhydrazine
Avdeenko,Zhukova
, p. 816 - 819 (2007/10/03)
Reaction of 4-arylsulfonylimino-2,3,5,6,6-pentachloro-2-cyclohexen-1-ones with tosylhydrazine gives rise to N-arylsulfonyl-N-p-tolylsulfonyl-2,3,5,6-tetrachloroaminophenols. With 4-arylsulfonylimino-2,2,3-trichloro-1,2,3,4-tetrahydronaphthalen-1-ones and 4-arylsulfonylimino-2-dihalo-1,2,3,4-tetrahydronaphthalen-1-ones reaction products are 4-arylsulfonylamido-2,3-dichloro-4-p-tolylsulfonylhydrazido-1,4-dihydronaphthalen-1-ones and 2-p-tolylsulfonyl-1,4-naphthoquinone-4-diazide respectively. First stage of the processes consists in dehydrohalogenation yielding the corresponding N-arylsulfonyl-p-quinonimines.
Activated Sterically Strained C=N Bond in N-Arylsulfonyl-p-quinonemono- and -diimines. I. Reactions with Alcohols
Avdeenko, A. P.,Yusina, A. L.,Menafova, Yu. V.,Pirozhenko, V. V.
, p. 1386 - 1390 (2007/10/03)
Analysis of the C=N-X bond angle and the energy of activation for inversion at the nitrogen atom in N-substituted p-quinonemono- and -diimines,as well of spectral parameters of N-arylsulfonyl-p-quinonemono- and -diimines with two bulky substituents in the ortho position with respect to the C=N double bond, allowed us to assume that the C=N bond in the latter qualitatively differs from that in other N-arylsulfonyl-p-quinonemono- and diimines.The presence of such activated sterically strained C=N bond favors 1,2-addition of alcohols to N-arylsulfonyl-p-benzo(naphtho)quinonemono- and -diimines with formation of 2,3,5,6-tetrachloro-4-arylsulfonylamino-4-alkoxy-2,5-cyclohexadien-1-ones, 2,3-dichloro-4-arylsulfonylamino-4-alkoxy-1,4-dihydronaphthalen-1-ones and 2,3,5,6-tetrachloro-1,4-bis-(arylsulfonylamino)-1,4-dialkoxy-2,5-cyclohexadienes.
CHLORINATION OF N,N'-BISARYLSULFONYL-1,4-PHENYLENEDIAMINES AND N,N'-BISARYLSULFONYL-1,4-BENZOQUINONE DIIMINES
Avdeenko, A. P.,Velichko, N. V.,Tolmachev, A. A.,Pirozhenko, V. V.,Romanenko, E. A.
, p. 146 - 154 (2007/10/02)
The chlorination of N,N'-bisarylsulfonyl-1,4-phenylenediamines leads to 1,4-bisarylsulfonylimino-2,3,5,5,6,6-hexachloro-2-cyclohexenes.Together with the chlorination products chloranil and/or 2,3,5,5,6,6-hexachloro-1,2-cyclohexene-1,4-dione were isolated as a result of the competing hydrolysis process.
REACTIONS OF N-ARYLSULFONYLQUINONE IMINES WITH ACYLHYDRAZINES
Avdeenko, A. P.,Evgrafova, N. I.,Tolmachev, A. A.
, p. 1131 - 1134 (2007/10/02)
Possible directions for the reaction of N-arylsulfonylquinone imines with acylhydrazines are discussed.Reduction occurs in quinone imines with high redox potentials and hydrazines with high basicity.Otherwise either addition-elimination occurs at the C=N
