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Mono‐, Di‐, Tri‐, Tetra‐, Penta‐und Hexaphenylbullvalene
Author(s) -
Rebsamen Karl,
Röttele Herbert,
Schröder Gerhard
Publication year - 1993
Publication title -
chemische berichte
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 0009-2940
DOI - 10.1002/cber.19931260624
Subject(s) - chemistry , tetra , lithium (medication) , kinetic energy , yield (engineering) , stereochemistry , nmr spectra database , medicinal chemistry , spectral line , crystallography , computational chemistry , thermodynamics , medicine , physics , quantum mechanics , astronomy , endocrinology
Mono‐, Di‐, Tri‐, Tetra‐, Penta‐and Hexaphenylbullvalenes Lithium diphenylcuprate reacts with the corresponding bromobullvalenes to yield the phenylbullvalenes 1–6 , whose substitution patterns are deduced from their 1 H‐NMR spectra. Starting with triphenylbullvalenes 3 some isomers show a relatively high kinetic stability which culminates in the case of the hexaphenylbullvalenes 6a and 6b in the loss of the phenomenon of fluctuating structure for the bullvalene skeleton.