Self-Contained Photoacid Generator Triggered by Photocyclization of Triangle Terarylene Backbone was written by Nakashima, Takuya;Tsuchie, Kenta;Kanazawa, Rui;Li, Ruiji;Iijima, Shunsuke;Galangau, Olivier;Nakagawa, Hisako;Mutoh, Katsuya;Kobayashi, Yoichi;Abe, Jiro;Kawai, Tsuyoshi. And the article was included in Journal of the American Chemical Society in 2015.HPLC of Formula: 6287-82-7 This article mentions the following:
We herein propose a new type of efficient neutral photoacid generator. A photoinduced 6π-electrocyclization reaction of photochromic triangle terarylenes triggers subsequent release of a Bronsted acid, which took place from the photocyclized form. A H-atom and its conjugate base were introduced at both sides of a 6π-system to form the self-contained photoacid generator. UV irradiation to the 6π-system produces a cyclohexa-1,3-diene part with a H-atom and a conjugate base on the sp3 C-atoms at 5- and 6-positions, resp., which spontaneously release an acid mol. quant. forming a polyaromatic compound A net quantum yield of photoacid generation as high as 0.52 under ambient conditions and a photoinitiated cationic polymerization of an epoxy monomer are demonstrated. In the experiment, the researchers used many compounds, for example, 2,3-Dibromobenzo[b]thiophene (cas: 6287-82-7HPLC of Formula: 6287-82-7).
2,3-Dibromobenzo[b]thiophene (cas: 6287-82-7) belongs to benzothiophene derivatives. Benzothiophene is relatively a stable molecule. The core structure is a part of various pharmaceutical substances and natural products. It is also used in the manufacturing of dyes such as thioindigo.HPLC of Formula: 6287-82-7
Referemce:
Benzothiophene – Wikipedia,
Benzothiophene | C8H6S – PubChem