[EN] ROBUST PHOTOCHROMIC COMPOUNDS WITH SILICON- OR PHOSPHORUS-CONTAINING HETEROCYCLIC RING AND PRODUCTION THEREOF [FR] COMPOSÉS PHOTOCHROMIQUES ROBUSTES COMPORTANT UN CYCLE HÉTÉROCYCLIQUE CONTENANT DU PHOSPHORE OU DU SILICIUM ET LEURS PROCÉDÉS DE PRODUCTION
[EN] ROBUST PHOTOCHROMIC COMPOUNDS WITH SILICON- OR PHOSPHORUS-CONTAINING HETEROCYCLIC RING AND PRODUCTION THEREOF [FR] COMPOSÉS PHOTOCHROMIQUES ROBUSTES COMPORTANT UN CYCLE HÉTÉROCYCLIQUE CONTENANT DU PHOSPHORE OU DU SILICIUM ET LEURS PROCÉDÉS DE PRODUCTION
Photoswitching of Copper(I) Chromophores with Dithienylethene-Based Ligands
作者:Zhen Xu、Yang Cao、Brian O. Patrick、Michael O. Wolf
DOI:10.1002/chem.201801940
日期:2018.7.20
Metal‐containing dithienylethenes offer new opportunities for variations in photochromic behavior. This work reports a series of copper(I) complexes containing dithienylethene‐based bidentate phosphine ligands displaying varying photochromic properties. A copper dimer is used as a common precursor, allowing diverse photochromic functionality to be achieved. Calculations show that ring closing of the
A convenient alternative method for the synthesis of dithienylacetylenes
作者:Andrey G. Lvov、Nikita A. Milevsky、Valerii Z. Shirinian、Mikhail M. Krayushkin
DOI:10.1007/s10593-015-1800-8
日期:2015.10
A two-stage preparative method is proposed for the synthesis of dithienylacetylenes – widely used intermediates in the preparation of photochromic diarylethenes.
Synthesis and photochromic properties of coumarin-based dithienylethenes
作者:Yaqian Li、Haichuang Lan、Shuzhang Xiao
DOI:10.1007/s11164-018-3504-z
日期:2018.11
Two photochromic coumarin-based dithienylethenes were synthesized by one-pot nucleophilic addition reaction of alkyne and phenol. Both diarylethenes exhibited reversible photochromism, but their conformation played an important role in their photochromicproperties. The derivative with high conjugation degree showed switchable fluorescence, providing a valuable reference for design of novel photochromic
A straightforwardsynthetic methodology for the preparation of photochromicsilolesbased on the dithienylethene motif is developed. It relies upon an efficient palladium‐catalyzed annulation reaction of a 2,3‐bis(3‐thienyl)‐silirene with terminal alkynes in mild conditions. The reaction is functional group‐tolerant and can be performed in high yields with a variety of functional terminal alkynes.
Bisarylindenones and an acetal derivative, a novel thermallyirreversiblephotochromic family based on 6π-electrocyclization with three easily modifiable functional groups, have been synthesized. 2,3-Bis(5-methyl-2-phenyl-4-thiazolyl)indenone showed photochromic back-and-forth reactions with two different visible lights. Its ethylene acetal recorded 0.81 as the photocyclization quantum yield in hexane, which