Zobrazeno 1 - 10
of 130
pro vyhledávání: '"Thomas Labahn"'
Publikováno v:
European Journal of Organic Chemistry. 2009:1683-1686
Cyclopropane- and alkylcyclopropane-annelated methyl imidazolidinecarboxylates 5 are formed from unsubstituted 1-H and from 2′-substituted methyl 2-chloro-2-cyclopropylideneacetates (1-R) and N,N′,N″-triarylguanidines (2) in a domino process co
Publikováno v:
European Journal of Organic Chemistry. 2006:399-404
Tetracyclopropylcyclopentadienone, upon liberation from its previously known tricarbonyliron complex 3, undergoes rapid [4+2] cyclodimerization to the highly congested1,2,4,5,6,7,8,9-octacyclopropyltricyclo[5.2.1.02,6]deca-4,8-diene-3,10-dione (6) wh
Publikováno v:
European Journal of Organic Chemistry. 2004:4483-4491
When heated in pyridine at 80 °C, pentacarbonyl[(2E)-3-cyclohexenyl-3-(dimethylamino)-1-ethoxy-2-propen-1-ylidene]chromium (1-Cr) and -tungsten (1-W) complexes undergo 6π-electrocyclization and subsequent reductive elimination to yield the cyclohex
Autor:
Hans-Georg Schmidt, Herbert W. Roesky, Thomas Labahn, Mathias Noltemeyer, Ying Peng, Junfeng Rong, Jörg Magull, Denis Vidovic
Publikováno v:
Journal of Fluorine Chemistry. 125:951-957
Reaction of RCN with an excess of AlH 3 ·NMe 3 in boiling toluene proceeds with the evolution of trimethylamine and provides an unusual heptameric aluminum imide (RCH 2 NAlH) 7 (R=1-adamantyl) ( 1 ). Compound 1 is the second heptameric aluminum imid
Autor:
Armin de Meijere, Heiko Schirmer, Yao‐Ting Wu, Stefan Mueller, Thomas Labahn, Markus Noetzel, Bernard L. Flynn, Frank Funke
Publikováno v:
European Journal of Organic Chemistry. 2004:724-748
The β-amino-substituted α,β-unsaturated Fischer carbene complexes 3 are readily available by a four step one-pot procedure from terminal alkynes, chromium hexacarbonyl and secondary amines (24 examples with yields of 68−99% and 7 examples with y
Autor:
Grigory B. Nikiforov, Hans-Georg Schmidt, Mathias Noltemeyer, Narayan S. Hosmane, Denis Vidovic, Jörg Magull, Herbert W. Roesky, Thomas Labahn
Publikováno v:
Polyhedron. 22:2669-2681
The titanium β-diketiminato complexes (L1)TiCl2 (1), (L1)TiCl(N2,6-iPr2C6H3) (2), and (L2)2TiCl (3) [L1=(2,6-iPr2C6H3)NC(Me)CHC(Me)N(2,6-iPr2C6H3), L2=iPrNC(Me)CHC(Me)NiPr] have been prepared by the reaction of the lithium salt of the ligand, L, wit
Publikováno v:
Organometallics. 22:3034-3038
A novel organozirconium hydroxide, [(Cp*Zr)6(μ4-O)(μ-O)4(μ-OH)8]·2(C7H8) (2), was prepared by the hydrolysis of Cp*ZrCl3. For the preparation of 2 the reagents KOH and water and the two-phase system ammonia/toluene were used. The crystal structur
Publikováno v:
European Journal of Inorganic Chemistry. 2003:433-436
Two new diiodide complexes of stoichiometry LLnI2 [Ln = Ho (1), Er (2)] with the β-diketiminato ligand 2-{[2-(diethylamino)ethyl]amino}-4-{[2-(diethylamino)ethyl]imino}pent-2-ene have been synthesized by the reaction of the lithium salt of the ligan
Publikováno v:
Organometallics. 22:490-498
O-Lithium-N,N-bis(tert-butyldimethylsilyl)hydroxylamide reacts with chlorotrimethylstannane to give N,O-bis(tert-butyldimethylsilyl)-N-(trimethylstannyl)hydroxylamine (1), the crystal structure of which is presented. The primarily formed N,N-bis(tert
Publikováno v:
Helvetica Chimica Acta. 85:3161-3175
Palladium-catalyzed intramolecular reactions of 2-bromo 1,6-dienes followed by intermolecular [4+2] cycloaddition with suitable dienophiles in one-pot operations gave hexahydroindenes 8 and 9 in yields of 40–78%, an hexahydro-s-indacene derivative