Proton-assisted switching of reaction pathways of stilbene analogues brought by direct irradiation.
[figure: see text] Photochemical reaction pathways during direct irradiation of stilbene analogues (1a-1d) can be switched completely by adjusting the concentration of hydrochloric acids. Competitive ring opening and acid-catalyzed hydrolysis processes are responsible for this novel selectivity.
Ho
J H
JH
Department of Chemistry, National Taiwan University, Taipei, Taiwan, Republic of China.
Ho
T I
TI
Liu
R S
RS