Wang, Yangyang published the artcileAldehyde-substituted donor-acceptor-type dithienylethenes as novel building blocks for photochromic materials, Application of 5-Chloro-3-[2-(5-chloro-2-methylthien-3-yl)cyclopent-1-en-1-yl]-2-methylthiophene, the publication is Journal of Chemical Research (2018), 42(10), 531-534, database is CAplus.
Two novel donor-π-acceptor-type dithienylethene derivatives I [n = 0, 1], in which the triphenylamine group acts as electron donor and the formyl group functions as electron acceptor, was developed. Their structures were confirmed by 1H NMR, 13C NMR and HRMS (ESI). Investigation of their photochromic properties indicated that they had good photochromic behavior and excellent fatigue resistance on irradiation with UV or visible light. DFT calculations further validated these exptl. results for photochromic behavior. Moreover, these compounds could be utilized as versatile building blocks to construct novel near-IR photochromic materials.
Journal of Chemical Research published new progress about 219537-97-0. 219537-97-0 belongs to chlorides-buliding-blocks, auxiliary class Fused/Partially Saturated Cycles,Cyclopentenes, name is 5-Chloro-3-[2-(5-chloro-2-methylthien-3-yl)cyclopent-1-en-1-yl]-2-methylthiophene, and the molecular formula is C9H9ClN2, Application of 5-Chloro-3-[2-(5-chloro-2-methylthien-3-yl)cyclopent-1-en-1-yl]-2-methylthiophene.
Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics