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Synthesis and Structures of Sterically Encumbered Group 14 Monolithio Compounds and Unexpected Differences in Their Reactivity
Author(s) -
Pop LucianCristian,
Kurokawa Nobuaki,
Ebata Hiroaki,
Tomizawa Katsuya,
Tajima Tomoyuki,
Saito Masaichi
Publication year - 2017
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/ejic.201700945
Subject(s) - chemistry , methyllithium , transmetalation , steric effects , reactivity (psychology) , terphenyl , group (periodic table) , medicinal chemistry , stereochemistry , organic chemistry , catalysis , medicine , alternative medicine , pathology
Group 14 monolithio compounds with sterically encumbered terphenyl ligands, ArM 14 (SiHMe 2 ) 2 Li [M 14 = Si, Ge, Sn; Ar = 2,6‐bis(2,6‐diisopropylphenyl)phenyl and 2,6‐bis(2,4,6‐triisopropylphenyl)phenyl], were prepared by transmetalation reactions of ArM 14 (SiHMe 2 ) 3 with methyllithium, the structures of which were established by X‐ray diffraction analysis. The monolithiosilanes and monolithiogermanes reacted with iodomethane and trichlorophosphane to afford the corresponding monomethylated and dichlorophosphane‐substituted derivatives, respectively. However, surprisingly, the reactions of monolithiostannanes with iodomethane and trichlorophosphane provided trimethylstannane and trichlorostannane, respectively.

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