Yazar "Koyuncu, Hasan" seçeneğine göre listele

Listeleniyor 1 - 2 / 2
  • Küçük Resim
    Öğe
    Efficient synthesis of ferrocenylenones by Friedel-Crafts acylation with EtAlCl2-Me3Al
    (Elsevier Science Sa, 2005) Doğan, Özdemir; Şenol, Volkan; Zeytinci, Serhat; Koyuncu, Hasan; Bulut, Adnan
    Efficient synthesis of ferrocenyl en ones using a Friedel-Crafts acylation reaction is described. Acryloyl, methacryloyl, crotonoyl, cinnamoyl, and beta-methylcrotonoyl chlorides react with ferrocene in the presence of a Lewis acid (EtAlC2 or EtAlCl2-Me3Al) to give the corresponding ferrocenyl en ones (acryloyl, methacryloyl, crotonoyl, cinnamoyl, and methylcrotonoylferrocenes) in good isolated yields. Besides ferrocenylenones, chloroactylferrocene is also synthesised by this method. (C) 2004 Elsevier B.V. All rights reserved.
  • Küçük Resim
    Öğe
    New zinc(II)-based catalyst for asymmetric azomethine ylide cycloaddition reactions
    (Amer Chemical Soc, 2006) Doğan, Özdemir; Koyuncu, Hasan; Garner, Philip; Bulut, Adnan; Youngs, Wiley J.; Panzner, Matthew
    A new chiral aziridino alcohol ligand for zinc(II)-catalyzed azomethine ylide cycloadditions is described. In the presence of this catalyst, N-arylidene glycine methyl esters react with a variety of dipolarophiles to give substituted pyrrolidines in very good to excellent chemical yields and up to 95% ee. The absolute sense of asymmetric induction appears to be dipolarophile-dependent.