10602-08-1Relevant articles and documents
Synthesis and Properties of Functional Twisted Tolanes
Kozhemyakin, Yury,Kretzschmar, Andreas,Kr?mer, Maximilian,Rominger, Frank,Dreuw, Andreas,Bunz, Uwe H. F.
, p. 9908 - 9918 (2017)
The synthesis and optical properties of several novel fluorescent and/or phosphorescent bridged tolanes (tolanophanes) are reported and their optical and structural properties are investigated. Specifically, diiodinated and bisalkynylated tolanophanes were obtained, and characterized by spectroscopy and computational methods. They represent attractive building blocks for novel polymers and emissive solid-state materials.
Configurationally Stabilized Analogs of M. ulcerans Exotoxins Mycolactones A and B Reveal the Importance of Side Chain Geometry for Mycolactone Virulence
Gehringer, Matthias,M?der, Patrick,Gersbach, Philipp,Pfeiffer, Bernhard,Scherr, Nicole,Dangy, Jean-Pierre,Pluschke, Gerd,Altmann, Karl-Heinz
, p. 5853 - 5857 (2019)
Mycolactones A/B (1a/b) are exotoxins of Mycobacterium ulcerans that are the molecular cause of Buruli ulcer. 1a/b represent a rapidly equilibrating mixture of Z/E isomers about the C4′=C5′ double bond of the C5-side chain. Here, we describe the syntheses
Substituent-Controlled Divergent Cascade Cycloaddition Reactions of Chalcones and Arylalkynols: Access to Spiroketals and Oxa-Bridged Fused Heterocycles
Chang, Weixing,Kong, Jingyang,Li, Jing,Liu, Lingyan,Wang, Hongkai,Zeng, Tianlong
, p. 4024 - 4032 (2021/07/12)
Herein, we report substituent-controlled divergent cascade cycloaddition reactions of chalcones and arylalkynols in the presence of PtI2. Depending on the substituent on the chalcone, either spiroketals or oxa-bridged fused heterocycles could be obtained in the ranges of 86–97% and 87–95% yields under identical reaction conditions. Control experiments were carried out to elucidate the origin of the high chemoselectivity. These provide a method for the synthesis of a diverse array of structurally complex oxygen-containing heterocycles. (Figure presented.).
Palladium-Catalyzed Synthesis of 6H-Dibenzo[c,h]chromenes and 5,6-Dihydrobenzo[c]phenanthridines: Application to the Synthesis of Dibenzo[c,h]chromene-6-ones, Benzo[c]phenanthridines, and Arnottin I
Pramanik, Subhendu,Jash, Moumita,Mondal, Debasmita,Chowdhury, Chinmay
, p. 5223 - 5238 (2019/11/11)
6H-Dibenzo[c,h]chromenes and 5,6-dihydrobenzo[c]phenanthridines have been synthesized via Palladium (II)-catalyzed domino reactions of acetylenic substrates involving intramolecular trans-oxo/amino palladation onto the triple bond followed by nucleophilic