The excited-state intramolecular proton transfer (ESIPT) phenomenon is nowadays widely
acknowledged to play a crucial role in many photobiological and photochemical processes …

A set of three donor–acceptor azahelical coumarins (DA-AHC s), namely, H-AHC, Me-AHC,
and Ph-AHC, were rationally designed and synthesized, and their excited-state properties …

Quadrupolar bis-coumarins bearing dialkylamino groups, prepared by a double Pechmann
reaction and subsequent oxidation, strongly emit yellow-orange light. Comparison with non …

Several electronic-structure methods are available to study the photochemistry and
photophysics of organic molecules. Among them, ADC (2) stands as a sweet spot between …

In this article, we described a new group of cationic photoinitiators. The influence of the
arrangement of electron-donating substituents in the coumarin chromophore on their …

The domino reaction of alkyl and aryl isocyanides with two molecules of 2-arylidene-1, 3-
indanediones in acetonitrile at 80° C resulted in unique functionalized spiro [dibenzo [a, f] …

Eleven conjoined coumarins possessing a chromeno [3, 4-c] chromene-6, 7-dione skeleton
have been synthesized via the reaction of electron-rich phenols with esters of coumarin-3 …

Abstract Indium triflate (In (OTf) 3) has proven to be a powerful and sustainable catalyst in
the synthesis of modern organic compounds, enabling a variety of transformations such as …

Coumarin containing hetero [n] helicene like molecules were synthesized using three
component Povarov reaction followed by two dehydrogenation steps in good yields …

In this study, Cs2CO3‐mediated one‐pot tandem dimerization/(3+ 3) cyclocondensation of
1, 3‐acetonedicarboxylates followed by substitution of alkyl or aryl halides was developed to …