Journal ArticleDOI
Synthesis of Imidazol-2-ylidenes by Reduction of Imidazole-2(3H)-thiones
Norbert Kuhn,Thomas Kratz +1 more
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TLDR
In this article, an improved synthesis of the title compounds was reported, and the N,N'-dialkylthioureas 1 with 3-hydroxy-2-butanone gave the imidazole-2(3H)-thiones 2 which on treatment with potassium in boiling tetrahydrofuran give the IMidazol-2ylidenes 3 in excellent yieldsAbstract:
An improved synthesis of the title compounds is reported. Reaction of the N,N'-dialkylthioureas 1 with 3-hydroxy-2-butanone gives the imidazole-2(3H)-thiones 2 which on treatment with potassium in boiling tetrahydrofuran give the imidazol-2-ylidenes 3 in excellent yieldsread more
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Journal ArticleDOI
Stable BH3 adducts to rhodium amide bonds
TL;DR: In this article, it was shown that the unprotected amine or amide ligand is essential for N-H and B-H bond cleavage in a co-planar cis-arrangement with respect to a metal hydride unit.
Journal ArticleDOI
Behavior of Lewis Bases toward Diphenylberyllium
Journal ArticleDOI
N-Heterocyclic Carbenes in Lewis Acid/Base Stabilised Phosphanylboranes†
TL;DR: In this paper, the reactions of 2-borane-1,3,4,5-tetramethylimidazoline (BH3·NHCMe) with selected phosphane adducts of the Lewis acids B(C6F5)3 and Ga(C 6F5)-3 are studied.
Book ChapterDOI
N -Heterocyclic Carbene Adducts of Main Group Compounds
TL;DR: The recent advances in the coordination chemistry of N -heterocyclic carbenes with elements from the s-and p-block (groups 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 30, 31, 32, 33, 34, 35, 36, 38, 39, 40, 41, 42, 41) are summarized in RE
Journal ArticleDOI
Wasserstoffbrückenbindungen mit Cyanidionen? Die Strukturen von 1,3‐Diisopropyl‐4,5‐dimethylimidazoliumcyanid und 1‐Isopropyl‐3,4,5‐trimethylimidazoliumcyanid
Norbert Kuhn,Klaus Eichele,Manfred Steimann,Ahmed Al-Sheikh,Bernd Doser,Christian Ochsenfeld +5 more
TL;DR: In this paper, the structure analysis of 1,3-Diisopropyl-4,5-dimethylimidazolium cyanide and 1-Isopropylon-3,4-5-trimethylimidine-2-ylidenes is presented.