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Derivate des Imidazols, VII. 2,3‐Dihydro‐1,3,4,5‐tetramethyl‐2‐methylen‐1 H ‐imidazol als Kupplungsreagens. Die Kristallstruktur von Bis(1,3,4,5‐tetramethyl‐2‐imidazolyl)methylium‐iodid
Author(s) -
Kuhn Norbert,
Bohnen Hans,
Kratz Thomas,
Henkel Gerald
Publication year - 1993
Publication title -
liebigs annalen der chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.825
H-Index - 155
eISSN - 1099-0690
pISSN - 0170-2041
DOI - 10.1002/jlac.1993199301184
Subject(s) - chemistry , imidazole , medicinal chemistry , iodide , pyridine , reagent , methyl iodide , stereochemistry , organic chemistry
Imidazole Derivatives, VII. – 2,3‐Dihydro‐1,3,4,5‐tetramethyl‐2‐methylen‐1 H ‐imidazole as Coupling Reagent. The X‐ray Structure of Bis(1,3,4,5‐tetramethyl‐2‐imidazolyl)methylium Iodide 2,3‐Dihydro‐1,2,3,4‐tetramethyl‐2‐methylen‐1 H ‐imidazole ( 1 ) reacts with 1,3,4,5‐tetramethyl‐2‐(methylthio)imidazolium iodide ( 4 ) in the presence of pyridine to give bis(1,3,4,5‐tetramethyl‐2‐imidazolyl)methylium iodide ( 5 ) which is also formed by the reaction of 4 and methyl lithium in the ratio 2:3. The X‐ray structure of 5 is reported.