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A Supercharged Anion with a Silyl‐Substituted Eight‐Center, Twelve‐Electron π System: Synthesis and Characterization of the Tetralithium Salt of an Octasilyl‐Substituted Trimethylenecyclopentene Tetraanion
Author(s) -
Sekiguchi Akira,
Matsuo Tsukasa,
Kabuto Chizuko
Publication year - 1997
Publication title -
angewandte chemie international edition in english
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 0570-0833
DOI - 10.1002/anie.199724621
Subject(s) - lithium (medication) , salt (chemistry) , silylation , center (category theory) , chemistry , ion , medicinal chemistry , organic chemistry , crystallography , catalysis , medicine , endocrinology
Orange crystals of the tetralithium salt of the tetraanion 1 were isolated from the reduction of the neutral octasilyl‐substituted trimethylenecyclopentene compound with lithium in THF. The tetraanion 1 is the first example of an eight‐center, twelve‐electron π system.