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

Uchikura Tatsuhiro | Zendy; Oshima Mari | Zendy; Kawasaki Minami | Zendy; Takahashi Kohei | Zendy; Iwasawa Nobuharu | Zendy

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

Author(s) -

Uchikura Tatsuhiro,

Oshima Mari,

Kawasaki Minami,

Takahashi Kohei,

Iwasawa Nobuharu

Publication year - 2020

Publication title -

angewandte chemie

Language(s) - English

Resource type - Journals

eISSN - 1521-3757

pISSN - 0044-8249

DOI - 10.1002/ange.201916732

Subject(s) - anthracene , photochemistry , cycloaddition , excited state , chemistry , photocatalysis , supramolecular chemistry , electron transfer , visible spectrum , triplet state , catalysis , crystal structure , materials science , organic chemistry , molecule , optoelectronics , physics , nuclear physics

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.

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