Visible light-promoted intermolecular cyclization/aromatization of chalcones and 2-mercaptobenzimidazolesviaan EDA complex and a mechanism study

Abstract

A visible-light-promoted cyclization and aromatization of chalcones with 2-mercaptobenzimidazoles has been successfully developed to obtain diverse imidazo[2,1-b]thiazoles, and the C-S and C-N bonds were constructed in one step. The reaction...

Multi Stimuli Responsive Non‐Doped Red Emitting AIEE Active Phenothiazine‐Based Chalcones: Crystal Structure, Solvatochromism, Turn‐on Mechanofluorochromism and Acidochromism

“…[15,16] They are also well-known for their bio-medical applications such as antioxidant, antidiabetic, anti-inflammatory, anti-microbial, anti-viral, and anti-cancer etc. [17][18][19][20][21][22] Incorporation of branched conjugation to the strong electron-rich center can increase the extent of electronic communication between donor (D) and acceptor (A) in a crossconjugated system and thus can display interesting photophysical properties. [23][24][25][26][27][28][29][30] In contrast to A-π-D-π-A or unsymmetrical D-π-A-π-D type linear dipolar systems, the symmetrical D-π-A-π-D array reinforces the dipole moment and thus, allows effective alterations to the optical band gap.…”

“…Red‐emitting AIEgens are known to be important for in vivo as well as in vitro bio‐imaging of cells [15,16] . They are also well‐known for their bio‐medical applications such as antioxidant, antidiabetic, anti‐inflammatory, anti‐microbial, anti‐viral, and anti‐cancer etc [17–22] …”