32504-26-0Relevant academic research and scientific papers
Non-fullerene acceptor engineering with three-dimensional thiophene/selenophene-annulated perylene diimides for high performance polymer solar cells
Li, Gang,Wang, Shuaihua,Liu, Tao,Hao, Pin,Liu, Zhenhua,Li, Fengting,Yang, Lian-Ming,Zhang, Yu,Li, Dandan,Yang, Shufan,Zhao, Jianfeng,Li, Jiewei,Yan, He,Tang, Bo
supporting information, p. 12601 - 12607 (2018/12/10)
We report two new propeller-shaped perylene diimide (PDI) acceptors based on tetraphenylethylene (TPE) as the core and flanked with S/Se-fused PDIs, named as TPE-PDI4-S and TPE-PDI4-Se. Compared to the sulfur-annulated counterpart, T
Iminoxyl radical-based strategy for intermolecular C=O bond formation: Cross-dehydrogenative coupling of 1,3-dicarbonyl compounds with oximes
Krylov, Igor B.,Terent'Ev, Alexander O.,Timofeev, Vladimir P.,Shelimov, Boris N.,Novikov, Roman A.,Merkulova, Valentina M.,Nikishin, Gennady I.
supporting information, p. 2266 - 2280 (2014/07/21)
Cross-dehydrogenative C=O coupling of 13-diketones and 1,3-keto esters with oximes was realized for the first time. The reaction proceeds in the presence of the oxidants [KMnO4, Mn(OAc)2/KMnO4, Mn(OAc)32 H2O, MnO2, Mn(acac)3, Fe(ClO4)3, Cu(ClO4)26 H 2O, Cu(NO3)22.5 H2O, and (NH 4)2Ce(NO3)6]. Twenty cross-coupling products were synthesized using potassium permanganate (KMnO4), manganese(II) acetate dihydrate [Mn(OAc)32 H2O], or the manganese(II) acetate/potassium permanganate [Mn(OAc)2/KMnO 4] system; yields are 27-92%. The synthesis can be easily scaled up to gram quantities of the target products. Apparently, the reaction proceeds via a radical mechanism in which the oxidizing agent serves to generate radicals from oximes and perform the one-electron oxidation of 1,3-dicarbonyl compounds. The formation of oxime radicals was confirmed quantitatively by electron spin resonance (ESR) spectroscopy. The coupling described in the present study is the first example of the selective intermolecular reaction involving unstable iminoxyl radicals generated in situ.
Chlorination of oximes with aqueous H2O2/HCl system: Facile synthesis of gem-chloronitroso- and gem-chloronitroalkanes, gem-chloronitroso- and gem-chloronitrocycloalkanes
Terent'ev, Alexander O.,Krylov, Igor B.,Ogibin, Yuri N.,Nikishin, Gennady I.
, p. 3819 - 3824 (2008/02/09)
Chlorination of cyclic and linear ketone oximes with aqueous H 2O2/HCl in a two-phase dichloromethane-water system selectively affords gem-chloronitroso compounds in yields of up to 94%. One-pot oxidation of the resulting gem-chloronitroso compounds with peracetic acid, prepared in situ, gives gem-chloronitroalkanes and cycloalkanes in yields of up to 82%. The advantages of the method are that it is facile and environmentally benign and does not require gaseous chlorine. Georg Thieme Verlag Stuttgart.
The Reactions of Silyl Nitronates with Organolithium Reagents
Colvin, Ernest W.,Robertson, Alan D.,Seebach, Dieter,Beck, Albert K.
, p. 952 - 953 (2007/10/02)
Silyl nitronates derived from primary and secondary nitroalkanes react with organolithium reagents to yield chain-extended oximes in modest to good yield.
