1360457-10-8Relevant articles and documents
2-lithiumamide-2-fluoro-1,3-diaza-2,4-disilacyclobutanes- Syntheses, reactions, structures
Kanaan, Fatme,Schulzke, Carola,Strueber, Katharina,Klingebiel, Uwe
, p. 2183 - 2192 (2012/02/14)
The cyclodisilazane Me2Si(NCMe3)2SiF 2 (1) reacts with lithium salts of ammonia (2), hydrazine (3) and amines (4-10) to give the stable compounds Me2Si(NCMe 3)2SiFNHR (R = H (2), NH2 (3) CMe3 (4), C10H15 (5), 3,5-C6H3Me 2 (6), 2,4,6-C6H2Me3 (7), 2,6-C 6H3(CHMe2)2 (8), C6F 5 (9), Si(CMe3)2Ph (10)). Compounds 2-10 show no condensation reactions with formation of NH3, N2H 4, or amines. Dilithiummethylenediamide reacts with 1 to give the ethylenediamine coupled ring system 11 or spirocyclic compound 12. Compounds 2, 3, 4 form the spirocyclic systems 13-15 in reactions with n-C4H 9Li. A partly hydrolysed lithium salt (16) was isolated as tetramer containing a central Li6O octahedron. The lithium salts of 5 (17), 9 (19) and 10 (20) were isolated as monomers (17, 19) or dimer, respectively, via an (LiN)-four-membered ring (20). Crystal structures of 3, 9, 13-17, 19 and 20 are reported. Copyright