Structure–property relationship of naphthalene based donor–π–acceptor organic dyes for dye-sensitized solar cells: remarkable improvement of open-circuit photovoltage
Structure–property relationship of naphthalene based donor–π–acceptor organic dyes for dye-sensitized solar cells: remarkable improvement of open-circuit photovoltage
Reported herein is the hydride transfer initiated redox-neutral cascadecyclizations of aurones, providing a variety of [6,5] spiro-heterocycles in satisfactory yields and good diastereoselectivities.