Go toArchive
Browse byFacets
Bookbag ( 0 )
'Pyrroles' in keywords
Results  5 Items
Sorted by   
Publication Year
2001 (1)
1999 (1)
1997 (2)
1993 (1)
1Author    M. Onoheteroarylborates [, Norbert Kuhn3, Heike Kotowski3, Dieter Bläserb, Roland BoesebRequires cookie*
 Title    Monoheteroarylborate [1]  
 Abstract    The heteroaryl borates Li[C4Me4NBH3] (6) and Na[C3H 3N2(BMe3)2]* 2 C4HgO (8) are ob­ tained by treatment of Li[C4Me4N] and Na[C3H3N2] with Me2S • BH3 and BMe3, respectively. The X-ray structure of [Na(C4H 80) 6][C3H 3N 2(BM e3)2] (10) is reported. 
  Reference    Z. Naturforsch. 52b, 351—354 (1997); eingegangen am 28. Oktober 1996 
  Published    1997 
  Keywords    Borates, Pyrroles, Imidazoles, X-Ray 
  Similar Items    Find
 TEI-XML for    default:Reihe_B/52/ZNB-1997-52b-0351.pdf 
 Identifier    ZNB-1997-52b-0351 
 Volume    52 
2Author    2. 2., Z. NaturforschRequires cookie*
 Abstract    -/erf-butyI-3,3'-bis(tri-m e th y lsily l)-l,l'-diazacobaltocen [1 ] 2.2..5.5'-Tetra-terr-butyl-3,3,-bis(tri-m eth y lsily l)-l,r-d iazaco b alto cen e [1] N o rb ert K uhn3 *, Stefan S tubenrauchb, D ieter B läserc, R oland B oesec The 1,1'diazacobaltocene pyr2Co (3) is obtai­ ned from the reaction of 2,5-di-terr-butyl-3-trime-thylsilylpyrrole (pyrH, 2) and CoCl2. The X-ray structure is reported. 
  Reference    Z. Naturforsch. 54b, 424—426 (1999); eingegangen am 5. November 1998 
  Published    1999 
  Keywords    Heterocycles, Pyrroles, Cobalt X-Ray Data 
  Similar Items    Find
 TEI-XML for    default:Reihe_B/54/ZNB-1999-54b-0424_n.pdf 
 Identifier    ZNB-1999-54b-0424_n 
 Volume    54 
3Author    Rosa Carballo3, Alfonso Castiñeirasb, Teresa PérezbRequires cookie*
 Title    Group 12 Metal Complexes of 2-Formylpyrrole-(4PLx) and 2-Acetylpyrrole-N(4)-phenylthiosemicarbazone (4P12), as Examples form Different Donor Modes. Crystal and Molecular Structures of [Hg(4PLr H)Br]2 and [Zn(4PL2)2Br2] * 2 EtOH  
 Abstract    The reactions of 4N-phenyl-2-[ 1 -(pyrrol-2-yl)methylidene]-hydrazine carbothioamide (4PLi) and 4 Ar-phenyl-2-[l-(pyrrol-2-yl)ethylidene]-hydrazine carbothioamide (4PL2) with Group 12 metal halides afford complexes of types [M(L)2Xi] [M = Zn, L = 4PLi or 4PL2, X = Cl, Br or I; M = Cd, L = 4PL, and X = Cl, or L = 4PL2 and X = Cl, Br or I] and [M(L)X2] [M = Cd, L = 4PLi, X = Br or I; M = Hg, L = 4PLi or 4PL2, X = Cl, Br or I]. The new compounds were characterized by elemental analysis, FAB mass spectrometry, IR spectroscopy, and, in the case of sufficiently soluble compounds, 'H, l3C and, when appropriate, ll3Cd or 199Hg NMR spectrometry. The structures of [Hg(4PLi-H)Br] and [Zn(4PL2)2Br2] • 2 EtOH were also studied by single-crystal X-ray diffractometry. In [Hg(4PL|-H)Br] crystallized from the mother liquor of its synthesis, 4PLi behaves as a monodeprotonated S,iV-bidentate ligand. Otherwise, with Hg(II), Zn(II) and Cd(II), 4PLi and 4PL2 both behave as neutral S-monodentate ligands. 
  Reference    Z. Naturforsch. 56b, 881—888 (2001); received June 12 2001 
  Published    2001 
  Keywords    Pyrrole, Thiosemicarbazones, Group 12 Metal Complex 
  Similar Items    Find
 TEI-XML for    default:Reihe_B/56/ZNB-2001-56b-0881.pdf 
 Identifier    ZNB-2001-56b-0881 
 Volume    56 
4Author    Karl Heinz, Ö. Tz, +., Jörg GlänzerRequires cookie*
 Title    Reaktionen von Komplexliganden, LVI [1]. 3-Pyrrolylcarben-Komplexe des Chroms: Darstellung und neuartige Carbenanellierung zum Isoindol-Gerüst Reactions o f Complex Ligands, LVI [1], 3-Pyrrolylcarbene Complexes of Chrom ium: Synthesis and Carbene Annulation to the Isoindole Skeleton  
 Abstract    -bromo-2,5-dimethylpyrrols, accessible from low-temperature brom ination using NBS or BTMABT, have been modified into pentacarbonyl[methoxy(3-pyrrolyl-car-bene)] complexes via sequential halogen/lithium exchange, addition to hexacarbonyl chro­ mium and alkylation. These com pounds react with alkynes and amines, resp., to give amino-lysis and annulation products. The carbene annulation methodology has been exploited in the synthesis of a persubstituted isoindoloquinone. 
  Reference    Z. Naturforsch. 48b, 1595—1602 (1993); eingegangen am 5. April 1993 
  Published    1993 
  Keywords    Pyrroles, /?-Metalation, Pyrrolylcarbene Complexes, Isoindoles N-Protected 3 
  Similar Items    Find
 TEI-XML for    default:Reihe_B/48/ZNB-1993-48b-1595.pdf 
 Identifier    ZNB-1993-48b-1595 
 Volume    48 
5Author    LuRequires cookie*
 Title    Synthesis of N,C,C-Trilithio-2,5-diaIlyl- pyrrole and its Solvent-Controlled Reactions with Electrophiles  
 Abstract    te d so lu tio n s ca n b e co o led to -80 °C w ith o u t p rec ip ita tio n . B e rn d W ra c k m e y e r5 5 B e rn d Schw arze Iris O rd u n g , 2,5-Diallylpyrrole 1 reacts with an excess of "BuLi in hexane/diethylether to give the N,C,C-trilithio reagent 2. 7Li NMR spectra of 2 in THF/ HMPTA at low tem perature indicate the pres­ ence of an ionic species. Reactions of 2 in TH F with electrophiles such as H 20 , D20 , Mel, Me3SiCl and Me3SnCl lead selectively to the cis-isomers 3a -6 a, whereas the analogous reactions in hexane or diethylether afford mixtures contain­ ing both cis-and rram-isomers (e.g. 3b). 
  Reference    Z. Naturforsch. 52b, 427—430 (1997); received November 5 1996 
  Published    1997 
  Keywords    Pyrrole, Solvent Controlled Reactions, NMR Spectra 
  Similar Items    Find
 TEI-XML for    default:Reihe_B/52/ZNB-1997-52b-0427_n.pdf 
 Identifier    ZNB-1997-52b-0427_n 
 Volume    52