859299-66-4Relevant academic research and scientific papers
Didehydroisobenzofuran: A New Reactive Intermediate for Construction of Isoacenofuran
Matsuoka, Suguru,Jung, Sunna,Miyakawa, Kaoru,Chuda, Yu,Sugimoto, Ryo,Hamura, Toshiyuki
, p. 18886 - 18889 (2018)
An efficient generation method of didehydroisobenzofuran, a new heteroaryne species, was developed by bromine/lithium exchange of the dibromoisobenzofuran. The reactive intermediate, thus generated, was trapped by appropriate arynophile to give the [2+2], [2+3], and [2+4] cycloadducts, respectively. Moreover, the reaction could be applied to the syntheses of isoanthracenofurans (anthra[2,3-c]furans), a new class of heteroacenes, with isoelectoronic structure to the corresponding acenoheteroles (anthra[2,3-b]furans).
CEREBLON E3 LIGASE INHIBITORS
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Paragraph 0560-0561, (2021/03/05)
The present disclosure provides compounds represented by Formula I: wherein R2a, R2b, R2c, R2d, R3, R13, and Z are as defined in the specification, and the salts and solvates thereof. Compounds of Formula I are cereblon (CRBN) ubiquitination inhibitors or monofunctional synthetic intermediates that can be used to prepare PROTAC molecules. CRBN ubiquitination inhibitors and PROTAC molecules are useful for the treatment of cancer and other diseases.
Synthesis of Core-Modified Third-Generation Light-Driven Molecular Motors
Berrocal, José Augusto,Pfeifer, Lukas,Heijnen, Dorus,Feringa, Ben L.
, p. 10670 - 10680 (2020/09/18)
The synthesis and characterization of a series of light-driven third-generation molecular motors featuring various structural modifications at the central aromatic core are presented. We explore a number of substitution patterns, such as 1,2-dimethoxybenzene, naphthyl, 1,2-dichlorobenzene, 1,1′:2′,1″-terphenyl, 4,4″-dimethoxy-1,1':2′,1″-terphenyl, and 1,2-dicarbomethoxybenzene, considered essential for designing future responsive systems. In many cases, the synthetic routes for both synthetic intermediates and motors reported here are modular, allowing for their post-functionalization. The structural modifications introduced in the core of the motors result in improved solubility and a bathochromic shift of the absorption maxima. These features, in combination with a structural design that presents remote functionalization of the stator with respect to the fluorene rotors, make these novel motors particularly promising as light-responsive actuators in covalent and supramolecular materials.
