Preparation and reactions of 4,4-dilithiodithienogermole

Add time:07/23/2019    Source:sciencedirect.com

The reaction of 4,4-dichloro-2,6-di(n-butyl)dithienogermole (DTGCl) with lithium naphthalenide yielded a dark blue solution, which was treated with methyl iodide to provide a 4,4-dimethylated product in 67% isolated yield, indicating the formation of 4,4-dilithio-2,6-di(n-butyl)dithienogermole (DTGLi). Similar treatment of the dark blue solution containing DTGLi with trimethylsilyl fluoride and water gave the corresponding 4,4-disubstituted products. When trimethylsilyl chloride was used, however, no silylated products were obtained, likely due to steric hindrance. The reaction of DTGLi with DTGCl gave poly[2,6-di(n-butyl)dithienogermole-4,4-diyl], whose UV–vis absorption spectra revealed a more extended conjugation than that of a previously prepared product from the Wurtz-type coupling of DTGCl with sodium. Reinvestigation of the electronic states of poly(dithienogermole-4,4-diyl) derivatives on the basis of crystal orbital calculations was also accomplished.

We also recommend Trading Suppliers and Manufacturers of 4,4'-(Z)-ETHENE-1,2-DIYLDIPHENOL (cas 15058-36-3). Pls Click Website Link as below: cas 15058-36-3 suppliers

Prev:Investigation of optical nonlinearity of 3,3′-dimethylbiphenyl 4,4′-diamine and 4,4′-diisocyano-3,3′-dimethylbiphenyl using a Z-scan technique
Next:Enhanced nucleophilic substitution with coordinated 4,4‘-dichloro-2,2‘-bipyridine: X-ray structures of 4,4‘-dichloro-2,2‘-bipyridine (Bipy-Cl2), cis-dichlorobis(4,4‘-dichloro-2,2‘-bipyridine)rhodium(III) hexafluorophosphate [Rh](PF6), and tris(4,4‘-dichloro-2,2‘-bipyridine)ruthenium(II) hexafluorophosphate [Ru](PF6)2)