205237-27-0Relevant academic research and scientific papers
Synthesis of alkynyl-substituted 9,10-dimetallatriptycenes of group 14 and their application in the preparation of a novel class of organometallic oligomers
Dam, Matheus A.,Hoogervorst, Wilhelmus J.,De Kanter, Franciscus J. J.,Bickelhaupt, Friedrich,Spek, Anthony L.
, p. 1762 - 1768 (1998)
The preparation of ((trimethylsilyl)ethynyl)germanium trichloride (4) allowed the synthesis of various alkynyl-substituted 9,10-dimetallatriptycenes via a simple one-pot synthetic procedure. For example, reaction of 4 with o-phenylenemagnesium (1) gave access to 9,-10-(RC≡C)2-9,10-digermatriptycenes (5, R = SiMe3; 6, R = H), while reaction of 4 with tris-(o-(chloromagnesio)phenyl)phenylgermane (2a) furnished 9-(RC≡C)-10-phenyl-9,10-digermatriptycenes (7, R = SiMe3; 8, R = H). The synthetic potential of these compounds in the preparation of rigid organometallic oligomers with conjugated spacers was demonstrated by the oxidative coupling of 8, which furnished 1,4-bis(9-(10-phenyl-9,10-digermatriptycyl))-buta-1,3-diyne (9), whose X-ray crystal structure was determined, and the hydrosilylation of 8 with 10-phenyl-10-germa-9-silatriptycene (3a), which yielded trans-1-(9-(10-phenyl-9,-10-digermatriptycyl))-2-(9-(10-phenyl-9-sila-10- germatriptycyl))ethene (10).
