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New Imidazabole Derivatives: Dimers of Carbene–Borane Adducts
Author(s) -
PadillaMartínez Itzia I.,
MartínezMartínez Francisco J.,
LópezSandoval Armando,
GirónCastillo Katia I.,
Brito Marco A.,
Contreras Rosalinda
Publication year - 1998
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/(sici)1099-0682(199810)1998:10<1547::aid-ejic1547>3.0.co;2-5
Subject(s) - borane , chemistry , carbene , adduct , medicinal chemistry , stereochemistry , polymer chemistry , crystallography , organic chemistry , catalysis
The preparation and characterization of five new imidazabole derivatives is reported: 1,5‐dibenzyl‐4,4,8,8‐tetrahydroimidazabole ( 2 ), 4,4,8,8‐tetrafluoro‐1,5‐dimethylimidazabole ( 3 ), 4,4‐difluoro‐8,8‐dihydro‐1,5‐dimethylimidazabole ( 4 ), 4,4,8,8‐tetrachloro‐1,5‐dimethylimidazabole ( 5 ), and 4,4,8,8‐tetraethyl‐1,5‐dimethylimidazabole ( 6 ). The structures of compounds 2 – 6 as dimeric carbene–borane adducts rather than dimeric N‐ borane adducts are discussed on the basis of NMR ( 2 – 6 ) and X‐ray diffraction data ( 2 , 3 , 5 and 6 ).