Efficient Synthesis of New 4-Arylideneimidazolin-5-ones Related to the GFP Chromophore by 2+3 Cyclocondensation of Arylideneimines with Imidate Ylides
作者:Janusz Kowalik、Anthony Baldridge、Laren Tolbert
DOI:10.1055/s-0029-1218796
日期:2010.7
A 2+3 condensation of a wide assortment of Schiff bases, prepared from aromatic aldehydes and primary amines, with methyl 2-(1-ethoxyethylideneamino)acetate allows convenient access to an extensive family of substituted 4-arylideneimidazolin-5-one analogues of the green fluorescent protein (GFP) chromophore. 4-arylideneimidazolin-5-one - azomethine ylide - Schiff bases - heterocycle - 2+3 cycloaddition
Resolving Electronic Transitions in Synthetic Fluorescent Protein Chromophores by Magnetic Circular Dichroism
作者:Petr Štěpánek、Thomas Y. Cowie、Martin Šafařík、Jaroslav Šebestík、Radek Pohl、Petr Bouř
DOI:10.1002/cphc.201600313
日期:2016.8.4
bands than plain absorption and fluorescence. Observed spectral patterns are rationalized with the aid of time‐dependent density functional theory (TDDFT) computations and the sum‐over‐state (SOS) formalism, which also reveals a significant dependence of MCD intensities on chromophore conformation. The combination of organic and theoretical chemistry with spectroscopic techniques also appears useful in
Imidazol-5-one as an Acceptor in Donor–Acceptor Cyclopropanes: Cycloaddition with Aldehydes
作者:Andrey A. Mikhaylov、Andrei V. Kuleshov、Pavel N. Solyev、Alexander A. Korlyukov、Pavel V. Dorovatovskii、Konstantin S. Mineev、Mikhail S. Baranov
DOI:10.1021/acs.orglett.0c00725
日期:2020.4.3
donor–acceptor (D–A) cyclopropanes in a formal cycloaddition reaction with aldehydes. The activation of such type of cyclopropanes is achieved with an equivalent of Brønsted acid. The reaction proceeds in high yields of 51–92% and demonstrates moderate diastereoselectivity at the quaternary stereocenter, which is determined by the electron-donating nature of the aldehyde partner. The ease of separation of stereoisomers
A Bio-inspired Approach for Chromophore Communication: Ligand-to-Ligand and Host-to-Guest Energy Transfer in Hybrid Crystalline Scaffolds
作者:Ekaterina A. Dolgopolova、Derek E. Williams、Andrew B. Greytak、Allison M. Rice、Mark D. Smith、Jeanette A. Krause、Natalia B. Shustova
DOI:10.1002/anie.201507400
日期:2015.11.9
Efficient multiple‐chromophore coupling in a crystalline metal–organic scaffold was achieved by mimicking a protein system possessing 100 % energy‐transfer (ET) efficiency between a green fluorescent protein variant and cytochrome b562. The two approaches developed for ET relied on the construction of coordination assemblies and host–guest coupling. Based on time‐resolved photoluminescence measurements