Premium
Low‐Valent Silicon Cations with Two‐Coordinate Silicon and Aromatic Character
Author(s) -
Driess Matthias,
Yao Shenglai,
Brym Markus,
van Wüllen Christoph
Publication year - 2006
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200602327
Subject(s) - silylene , zwitterion , electrophile , silicon , chemistry , character (mathematics) , ion , medicinal chemistry , computational chemistry , photochemistry , organic chemistry , catalysis , molecule , geometry , mathematics
Desperately seeking silyenylium : Electrophilic attack of silylene 1 (R=2,6‐diisopropylphenyl) by B(C 6 F 5 ) 3 and H + afforded the silylene‐like zwitterion 2 and the “free” silyliumylidene cation 3 (in the presence of the noncoordinating [B(C 6 F 5 ) 4 ] − anion), respectively. Cations 2 and 3 represent a novel class of low‐coordinate silicon cations with promising potential for the synthesis of heteroleptic silylenes.