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2,3-Dihydro-1,3,4,5-tetraisopropylimidazol-2-yliden / 2,3-Dihydro-1,3,4,5-tetraisopropylimidazol-2-ylidene
-
Dieter Bläser
and
Markus Ströbele
Published/Copyright:
June 2, 2014
2,3-Dihydro-1,3,4,5-tetraisopropylimidazol-2-ylidene (1d) is obtained from 1,3,4,5-tetraisopropylimidazolin- 2-thion (2d) and potassium in excellent yield. On comparison with 2,3-dihydro-1,3- diethyl-4,5-dimethylimidazol-2-ylidene (1b) and 2,3-dihydro-1,3-diisopropyl-4,5-dimethylimidazol- 2-ylidene (1c), 2d exhibits a markedly decreased reactivity towards electrophiles which can be explained by differences in the molecular structures in the crystal.
Graphical Abstract
2,3-Dihydro-1,3,4,5-tetraisopropylimidazol-2-yliden / 2,3-Dihydro-1,3,4,5-tetraisopropylimidazol-2-ylidene
Received: 2013-9-27
Published Online: 2014-6-2
Published in Print: 2014-1-1
© 1946 – 2014: Verlag der Zeitschrift für Naturforschung
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Keywords for this article
N-Heterocyclic Nucleophilic Carbenes;
Synthesis;
Reactivity;
X-Ray Crystallography
Articles in the same Issue
- The Hexaammine Copper(II) Fluoride Monohydrate [Cu(NH3)6][F(H2O)F]: Synthesis and Crystal Structure
- Fluorodinitroethyl Ortho-carbonate and -formate as Potential High Energy Dense Oxidizers
- Single-Crystal Structures and Vibrational Spectra of Li[SCN] and Li[SCN] · 2H2O
- Phosphanchalkogenide und ihre Metallkomplexe. II. Komplexe einiger Gold(I)-Halogenide mit Diphosphanmonochalkogeniden [1] / Phosphane Chalcogenides and their Metal Complexes. II. Gold(I) Halide Complexes of some Diphosphane Monochalcogenides
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- Functionalized Pyrazoles as Agents in C–C Cross-Coupling Reactions
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- Synthesis, Characterization and Antifungal Evaluation of Novel 2H-1,4-Benzoxazin-3(4H)-one Derivatives Linked with a 1,2,3-Triazole Moiety
- Ab-initio Studies of the Electronic Structures of the Hexavalent Uranium Compounds K2UO4 and Na4UO5
- Two New Diterpenoids from the Beibu Gulf Gorgonian Anthogorgia caerulea
- Sr2Au6Al3 and Eu2Au6Al3 – First Representatives of the Sr2Au6Zn3 Type with Aluminum Triangles
- Reaction of Copper(I) Nitrotetrazolate (DBX-1) with Sodium m-Periodate
