Photoresponsive Molecular Switch for Regulating Transmembrane Proton-Transfer Kinetics
摘要:
To control proton delivery across biological membranes, we synthesized a photoresponsive molecular switch and incorporated it in a lipid layer. This proton gate was reversibly activated with 390 nm light (Z-isomer) and then deactivated by 360 nm irradiation (E-isomer). In a lipid layer this stimuli responsive proton gate allowed the regulation of proton flux with irradiation to a lipid-buried O-2 reduction electrocatalyst. Thus, the catalyst was turned on and off with the E-to-Z interconversion. This light-induced membrane proton delivery system may be useful in developing any functional device that performs proton-coupled electron-transfer reactions.
A direct catalytic ring expansion approach to o-fluoronaphthols and o/p-fluorophenols from indanones and 2-cyclopentenones
作者:Jian Chang、Xiaoning Song、Wanqiao Huang、Dongsheng Zhu、Mang Wang
DOI:10.1039/c5cc06825h
日期:——
A direct method for the synthesis of o-fluoronaphthols and o/p-fluorophenols has been developed by a catalytic ringexpansion of indanones and 2-cyclopentenones, in which TMSCF2Br was used as a unique...