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Tetrameres Lithium‐tris(N, N‐dimethylamino)silylamid: Synthese, Struktur und Reaktivität
Author(s) -
Walther Dirk,
Schramm Frank,
Theyssen Nils,
Beckert R.,
Görls Helmar
Publication year - 2002
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/1521-3749(200209)628:9/10<1938::aid-zaac1938>3.0.co;2-8
Subject(s) - lithium (medication) , chemistry , reactivity (psychology) , crystal structure , tris , medicinal chemistry , chloride , stereochemistry , crystallography , organic chemistry , medicine , biochemistry , alternative medicine , pathology , endocrinology
Tetrameric Lithium Tris(N, N‐dimethylamino)silylamide: Synthesis, Structure, and Reactivity [(Me 2 N) 3 SiNHLi] 4 ( 1 ) has been prepared from <(Me 2 N) 3 Si—NH 2 and t ‐BuLi. According to the crystal structure analysis 1 has a laddering structure consisting of seven four‐membered rings. The two Li 2 (NH) 2 units contain three‐coordinated Li; the other five rings consist of Li(NH) 2 Si units in which the Li atoms are found to be four‐coordinated. Reaction with bis(4‐tolyl)‐oxalic imidoyl chloride results in the formation of bis(N, N′‐dimethylamino)‐bis(4‐tolyl)oxalamidine and two new heterocycles.