Supramolecular Photocatalysis by Utilizing the Host-Guest Charge-Transfer Interaction: Visible-Light-Induced Generation of Triplet Anthracenes for [4+2] Cycloaddition Reactions

Autor:	Kohei Takahashi, Tatsuhiro Uchikura, Mari Oshima, Nobuharu Iwasawa, Minami Kawasaki
Rok vydání:	2019
Předmět:	Anthracene chemistry.chemical_compound chemistry Excited state Photocatalysis Supramolecular chemistry General Chemistry Photochemistry Catalysis Cycloaddition Excitation Visible spectrum
Zdroj:	Angewandte Chemie (International ed. in English). 59(19)
ISSN:	1521-3773
Popis:	Supramolecular photocatalysis via charge-transfer excitation of a host-guest complex was developed by use of the macrocyclic boronic ester [2+2]BTH-F containing highly electron-deficient difluorobenzothiadiazole moieties. In the presence of a catalytic amount of [2+2]BTH-F , the triplet excited state of anthracene was generated from the charge-transfer excited state of anthracene@[2+2]BTH-F by visible-light irradiation, and cycloaddition of the excited anthracene with several dienes and alkenes proceeded in a [4+2] manner in high yields.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::337e2c023934acf63386d2ba12ed17cd https://pubmed.ncbi.nlm.nih.gov/32043287 Zobrazit plný text záznamu Plný text