Enantiopure sulfinyl azobenzenes as chiroptical switches.
[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.
Carreño
M Carmen
MC
Departamento de Química Orgánica (C-I), Universidad Autónoma de Madrid, Cantoblanco, Spain. carmen.carrenno@uam.es
García
Isabel
I
Ribagorda
María
M
Merino
Estíbaliz
E
Pieraccini
Silvia
S
Spada
Gian Piero
GP