ChemInform Abstract: Photoswitchabel Azoheterocycles via Coupling of Lithiated Imidazoles with Benzenediazonium Salts.

Abstract

Photoswitchabel Azoheterocycles via Coupling of Lithiated Imidazoles with Benzenediazonium Salts. -Upon irradiation at 365 nm, the azoimidazoles (III), (VI), (VIII), and (X) are transformed to their cis isomers. Heating of the latter leads back to the trans isomers. -(WENDLER, T.; SCHUETT, C.; NAETHER, C.; HERGES*, R.; J. Org. Chem. 77 (2012) 7, 3284-3287, http://dx.