Enantiopure sulfinyl azobenzenes as chiroptical switches.

Authors :: Carreño MC
García I
Ribagorda M
Merino E
Pieraccini S
Spada GP
Source :: Organic letters [Org Lett] 2005 Jul 07; Vol. 7 (14), pp. 2869-72.
Publication Year :: 2005
Abstract: [reaction: see text] Photoswitchable enantiopure sulfinyl azo compounds have been synthesized. A remarkable perturbation of the azo system by the stereogenic sulfinyl moiety has been observed by CD in both the trans and the cis azobenzenes resulting by photoisomerization. After five irradiation cycles, the configurational integrity of these chiral switches remains unchanged.