361525-33-9Relevant academic research and scientific papers
1-Oxa-3-aza-2,4-disilacyclobutanes - Synthesis, X-ray structures, and reactivity
Klingebiel, Uwe,Noltemeyer
, p. 1889 - 1894 (2001)
Lithium aminodi(tert-butyl)silanolate reacts with F3SiR to give the aminosiloxane (Me3C)2SiNH2-O-SiF2R [1; R = 2,4,6-(tBu)3C6H2]. In the reaction of 1 with BuLi a four-membered (Si-O-Si-NH) ring system 2 is formed [-(Me3C)2Si-O-SiFR-NH-]. The amino-1,3-disiloxane RSiF2-NH-Si-(CMe3)2-O-SiF2R (3) is obtained from dilithiated amino(ditert-butyl)silanol and F3SiR. Compound 1 reacts with BuLi with formation of a dimeric lithium derivative through the Li-N bond (4). In 4 the transannular Si···Si distance was found to be 237.2 pm, which is the shortest distance so far found between two silicon atoms contained in four-membered rings. Compound 4 reacts with Me3SiOSO2CF3 with substitution of the lithium by the Me3Si group to give 5.
