6942-36-5Relevant articles and documents
Synthesis and photophysical properties of isocoumarin-based D-π-A systems
Pirovano, Valentina,Marchetti, Marialaura,Carbonaro, Jessica,Brambilla, Elisa,Rossi, Elisabetta,Ronda, Luca,Abbiati, Giorgio
, (2019/09/30)
We prepared a small library of polarity-sensitive fluorescent dyes characterized by an isocoumarin core properly functionalized with a conjugated push-pull system. The key step of the synthesis is based on a regio-selective silver(I)/p-TSA co-catalyzed cyclization of 2-alkynylbenzoates recently optimized in our laboratory. The photophysical properties of isocoumarin-based D-π-A systems have been investigated and a rationale was proposed based on their dipole moments and Hammett constants of the ED and EW groups involved.
4,4-DIFLUORO-PIPERIDINE-COMPOUNDS
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Page/Page column 21, (2013/09/12)
The invention, in a first aspect relates to compounds of formula (I) or a pharmaceutically acceptable salt thereof, wherein R is a 6-membered aromatic ring, or a 5- or 6-membered heteroaromatic ring comprising 1 to 3 heteroatoms selected from S, O and N,
Supramolecular control of selectivity in hydroformylation of vinyl arenes: Easy access to valuable β-aldehyde intermediates
Dydio, Pawel,Reek, Joost N. H.
supporting information, p. 3878 - 3882 (2013/05/09)
Go against the flow! A rationally designed regioselective hydroformylation catalyst, [Rh/L], in which noncovalent ligand-substrate interactions allow the unprecedented reversal of selectivity from the typical α-aldehyde to the otherwise unfavored product β-aldehyde, is reported. This catalytic system opens up novel and sustainable synthetic pathways to important intermediates for the fine-chemicals industry.