32382-35-7Relevant academic research and scientific papers
Palladium-Catalyzed Diarylation of Isocyanides with Tetraarylleads for the Selective Synthesis of Imines and α-Diimines
Tran, Cong Chi,Kawaguchi, Shin-Ichi,Kobiki, Yohsuke,Matsubara, Hitomi,Tran, Dat Phuc,Kodama, Shintaro,Nomoto, Akihiro,Ogawa, Akiya
, p. 11741 - 11751 (2019/10/02)
Using tetraaryllead compounds (PbAr4) as arylating reagents, isocyanides undergo selective diarylation in the presence of palladium catalysts such as Pd(OAc)2 or Pd(PPh3)4 to afford imines and/or α-diimines based on the isocyanide employed. With aliphatic isocyanides, imines are obtained preferentially, whereas α-diimines are formed in the case of electron-rich aromatic isocyanides. The differences in imine/α-diimine selectivity can be attributed to the stability of imidoylpalladium intermediates formed in this catalytic reaction. Compared with other arylating reagents, tetraaryllead compounds are excellent candidates for use in the selective transformations to imines and/or α-diimines, especially in terms of inhibiting the oligomerization of isocyanides, which results in a lower product selectivity in many transition-metal-catalyzed reactions of isocyanides.
Bio active mixed ligand complexes of Cu(II), Ni(II) and Zn(II): Synthesis, spectral, XRD, DNA binding and cleavage properties
Raman, Natarajan,Mahalakshmi, Rajkumar
, p. 157 - 163 (2014/01/17)
The paper presents the synthesis of complex combinations of Cu(II), Zn(II) and Ni(II) with Schiff bases obtained by the condensation reaction of diphenylglyoxal with 1-amino-4-nitrobenzene (L1)/1-amino-4- chlorobenzene (L2)/p-anisidi
Microwave-assisted efficient synthesis of diimines in dry media using silica gel supported sodium hydrogen sulfate as reusable solid support
Bazgir, Ayoob
, p. 1 - 2 (2007/10/03)
A simple and efficient method for synthesis of diimines using silica gel supported sodium hydrogen sulfate as reusable solid support in solvent-free conditions under microwave irradiation is described.
A novel decyanogenative coupling of α-cyanoimines mediated by samarium. A facile route to α-diketimines
Thakur, Ashim J.,Prajapati, Dipak,Sandhu, Jagir S.
, p. 102 - 103 (2007/10/03)
Conversion of α-cyanoimines 1 into α-diketimines 2 has been achieved successfully by using samarium diiodide in dry tetrahydrofuran in high yields without formation of anilinoanil 3, 1,2-diamines 4 or anilides 5.
Formation of benzil diimines by microwave-assisted reaction of benzil with aromatic amines on alumina surface without solvent
Singh,Mahajan
, p. 410 - 411 (2007/10/03)
The microwave-assisted solvent-free reaction of benzil with aromatic amines (in 1 : 2 molar ratio) on an alumina surface for 4 min affords benzil diimines (1,2,3,4-tetraaryl-1,4-diaza-1,3-butadienes).
A novel reductive dimerization/oxidative dehydrogenation of aldimines mediated by lanthanoid metals
Jin,Makioka,Kitamura,Fujiwara
, p. 514 - 520 (2007/10/03)
A lanthanoid metal-mediated novel reductive dimerization/oxidative dehydrogenation of a variety of aldimines has been achieved. Aromatic aldimines (1) were dimerized in the presence of 0.5 mol of ytterbium metal (Yb) and 1-naphthaldehyde (1-NpCHO) to give
