164025-54-1Relevant articles and documents
Copper-Catalyzed Reductive Trifluoromethylation of Alkyl Iodides with Togni's Reagent
Chen, Yanchi,Ma, Guobin,Gong, Hegui
supporting information, p. 4677 - 4680 (2018/08/07)
This work illustrates a reductive cross-electrophile coupling protocol for trifluoromethylation of alkyl iodides under Cu-catalyzed/Ni-promoted reaction conditions. The use of diboron esters as the terminal reductant allows the effective generation of the alkyl-CF3 products with excellent functional group tolerance and broad substrate scope. A mechanism involving a reaction of alkyl-Cu with Togni's reagent was proposed.
A remarkably useful sulfur bridge as synthetic lever in an approach to Javanicin B
Dion, Amélie,Spino, Claude
, p. 894 - 919 (2017/07/27)
A concise and efficient synthesis of a non-racemic advanced intermediate to the quassinoid javanicin B is disclosed. The strategy is centred on a triple diene-transmissive Diels-Alder cycloaddition to form the four rings of javanicin B. A sulfur bridge plays several crucial roles allowing an intramolecular cycloaddition to occur with complete stereoselectivity, controlling the stereochemical outcome of another cycloaddition, and transforming into a pivotal electrophile for the introduction of a particularly hindered methyl group.
Attempts directed towards the synthesis and determination of the absolute stereochemistry of iso-cladospolide-B and cladospolides-B and C
Sharma,Reddy, J. Janardhan,Reddy, K. Laxmi
, p. 6531 - 6535 (2007/10/03)
Attempts to synthesise iso-cladospolide-B, cladospolide-B and cladospolide-C resulted in macrolides 1, 2 and 4 along with butenolide 3. Of the three stereogenic centres, the C-4/C-5 vic-diol was obtained from tartaric acid and d-glucose, while the C-11 st