Results 221 to 230 of about 27,097 (262)

Aza-BODIPY Route to Ageladine A

Organic Letters, 2022
The marine natural product ageladine A was synthesized by exploiting novel aza-BODIPY-type boron complexes that allowed the regioselective dibromination of the pyrrole unit, as confirmed by quantum chemical calculation (ωB97XD/TApr-cc-pVDZ). The parent tricycle was accessed by Suzuki-Miyaura cross-coupling employing Buchwald's precatalyst.
Christian Tolle, Marvin Fresia, Thomas Lindel   +2 more
openaire   +2 more sources

Synthesis and application of methylthio-substituted BODIPYs/aza-BODIPYs

Dyes and Pigments, 2017
Abstract A series of new BODIPYs/aza-BODIPYs with a methylthio group were Herein prepared. Introduction of the electron-donating methylthio substituent into such dyes could reduce the fluorescence quantum yield, red-shift its emission spectra, provide higher extinction coefficients and larger Stokes' shift.
Xin-Dong Jiang, Xin Liu, Tao Fang, Changliang Sun   +3 more
openaire   +1 more source

Synthesis of Functionalized BODIPYs, BODIPY‐Corrole, and BODIPY‐Porphyrin Arrays with 1,2,3‐Triazole Linkers Using the 4‐Azido(tetrafluorophenyl)‐BODIPY Building Block

European Journal of Organic Chemistry, 2015
AbstractThe copper(I)‐catalyzed 1,3‐dipolar cycloaddition of 4‐azido(tetrafluorophenyl)boron‐dipyrrin (azido‐BODIPY) with diverse terminal alkynes, varying from simple alkyl‐substituted derivatives to alkynes with functional groups and carbohydrates, was successfully employed to obtain meso‐functionalized BODIPY derivatives through the 1,2,3‐triazole ...
Hartwig R. A. Golf, Anna M. Oltmanns, Duc H. Trieu, Hans‐Ulrich Reissig, Arno Wiehe   +4 more
openaire   +1 more source

Masking and Demasking Strategies for the BF₂–BODIPYs as a Tool for BODIPY Fluorophores

The Journal of Organic Chemistry, 2014
An efficient and chemoselective route for transforming BF2-BODIPYs to Et2B-BODIPYs (masking) was developed using Et2AlCl. The Et groups can be easily replaced with F atoms using BF3·Et2O in moist CH2Cl2 to regenerate the BF2-BODIPYs (demasking). The masking-demasking strategy is very useful for synthesizing functionalized BODIPYs via nucleophilic and ...
Ankush B, More, Soumyaditya, Mula, Shrikant, Thakare, Nagaiyan, Sekar, Alok K, Ray, Subrata, Chattopadhyay   +5 more
openaire   +2 more sources

Water-Soluble BODIPY Derivatives

Organic Letters, 2009
New, water-soluble BODIPY dyes have been readily obtained from various BODIPY cores by reactions involving the introduction of novel sulfonated peptide chains by either coupling or substitution to give dimethylpropargylamine derivatives subsequently quaternized by reaction with propanesultone.
Niu, Song Lin, Ulrich, Gilles, Ziessel, Raymond, Kiss, Agneta, Renard, Pierre-Yves, Romieu, Anthony   +5 more
openaire   +2 more sources

Robust synthesis of F-BODIPYs

Organic & Biomolecular Chemistry, 2016
A protocol is established for the high-yielding synthesis of F -BODIPYs involving non-anhydrous reagents and not requiring precautions to exclude moisture.
Michael Helmut Reynolds Beh, Katherine Isabelle Biehn Douglas, Kelsey Taylor Elver House, Alexandra Celeste Murphy, Jackson Scott Testemale Sinclair, Alison Thompson   +5 more
openaire   +2 more sources

Sulfur‐Bridged BODIPY DYEmers

Chemistry – A European Journal, 2013
AbstractReactions of BODIPY monomers with sulfur nucleophiles and electrophiles result in the formation of new BODIPY dimers. Mono‐ and disulfur bridges are established, and the new dyestuff molecules were studied with respect to their structural, optical, and electrochemical properties.
Johannes, Ahrens, Birte, Böker, Kai, Brandhorst, Markus, Funk, Martin, Bröring   +4 more
openaire   +2 more sources

Synthesis of diastereoisomeric BODIPY: An attempt on the resolution of axially chiral BODIPYs

AIP Conference Proceedings, 2021
This article provides efforts on a resolution of axially chiral BODIPYs (Ax*-BODIPY) towards Boron’s chiral utilization. Simply by generating the second chiral center on the dipyrromethene ring over the B-F substitution reaction, the Ax*-BODIPY will then turn to plausibly separable diastereoisomers, a column chromatographically separable molecule.
openaire   +1 more source

Solvatochromism of BODIPY-Schiff Dye

The Journal of Physical Chemistry B, 2014
A boron-dipyrrin chromophore connected with an o-hydroxyaryl aldimine by a diazo bridge (BODIPY-Schiff dye) has been developed. The photophysical properties of the BODIPY-Schiff dye have been investigated with UV, steady-state, and time-resolved fluorimetry.
Aleksander, Filarowski, Marina, Lopatkova, Paweł, Lipkowski, Mark, Van der Auweraer, Volker, Leen, Wim, Dehaen   +5 more
openaire   +2 more sources

A BODIPY analogue from the tautomerization of sodium 3-oxide BODIPY

Chinese Chemical Letters, 2015
Abstract The introduction of hydroxy group to the 3- or 5-position of 4,4-difluoro-4-bora-3a,4a-diazaindacene (BODIPY) results in unexpected tautomerization to BDPONa with interesting structural and photophysical properties. The core of BDPONa is an anion with sodium cation as counter-ion. BDPONa displays strong fluorescence in organic solvents.
Chen-Ho Tung, Yu-Zhe Chen, Li-Ya Niu
exaly   +2 more sources