67069-91-4Relevant academic research and scientific papers
Synthesis and antimicrobial activity of new 1-alkyl/cyclohexyl-3,3-diaryl-1′-methylspiro[azetidine-2,3′-indoline]-2′,4-diones
Singh, Girija S.,Luntha, Patrick
experimental part, p. 2265 - 2269 (2009/10/02)
The paper describes the synthesis of new 1-alkyl/cyclohexyl-3,3-diaryl-1′-methylspiro[azetidine-2,3′-indoline]-2′,4-diones from the reactions of the 2-diazo-1,2-diarylethanones with 1-methyl-3-(alkyl/cyclohexylimino)indolin-2-ones under thermal condition.
Reactions of α-diazoketones with indolinone imines: Synthesis of new 1,3,3-triaryl-1′-methylspiro[azetidine-2,3′-indoline]-2′, 4-diones
Singh, Girija S.,Mmolotsi, Boycie J.
, p. 1665 - 1668 (2007/10/03)
The paper describes the synthesis of new 1,3,3-triary-1′- methylspiro[azetidine-2,3′-indoline]-2′,4-diones from reaction of the 2-diazo-1,2-diarylethanones with 3-arylimino-1-methyl-2-indolinones. The compounds have been characterized by satisfactory anal
Formation of diazoketones and azines by improved oxidation of ketohydrazones using Cu(acac)2 as a catalyst
Ibata, Toshikazu,Singh, Girija S.
, p. 2581 - 2584 (2007/10/02)
An efficient Cu(acac)2-catalyzed oxidation of ketohydrazones afforded the corresponding α-diazeketones or ketazines in high yields depending on the reaction conditions. However, the reaction of benzophenone hydrazone gave benzophenone azine without affording diphenyldiazomethane. The formation of azines is explained by intermediacy of carbenoid generated by the Cu(acac)2-catalyzed decomposition of diazo compounds.
