26040-83-5Relevant articles and documents
Flow rhodaelectro-catalyzed alkyne annulations by versatile C-H Activation: Mechanistic support for rhodium(III/IV)
Kong, Wei-Jun,Finger, Lars H.,Messinis, Antonis M.,Kuniyil, Rositha,Oliveira, Jo?o C.A.,Ackermann, Lutz
supporting information, p. 17198 - 17206 (2019/10/28)
A flow-metallaelectro-catalyzed C-H activation was realized in terms of robust rhodaelectro-catalyzed alkyne annulations. To this end, a modular electro-flow cell with a porous graphite felt anode was designed to ensure efficient turnover. Thereby, a variety of C-H/N-H functionalizations proved amenable for alkyne annulations with high levels of regioselectivity and functional group tolerance, viable in both an inter- or intramolecular manner. The electro-flow C-H activation allowed easy scale up, while in-operando kinetic analysis was accomplished by online flow-NMR spectroscopy. Mechanistic studies suggest an oxidatively induced reductive elimination pathway on rhodium(III) in an electrocatalytic regime.
C-H activation guided by aromatic N-H ketimines: Synthesis of functionalized isoquinolines using benzyl azides and alkynes
Gupta, Sreya,Han, Junghoon,Kim, Yongjin,Lee, Soon W.,Rhee, Young Ho,Park, Jaiwook
, p. 9094 - 9103 (2014/12/11)
Aromatic N-H ketimines were in situ generated from various benzylic azides by ruthenium catalysis for the subsequent Rh-catalyzed annulation reaction with alkynes to give the corresponding isoquinolines. In contrast to conventional synthetic methods for aromatic N-H ketimines, our protocol works under mild and neutral conditions, which enabled the synthesis of isoquinolines having various functionalities such as carbonyl, ester, alkenyl, and ether groups. In addition, the imidates generated from α-azido ethers were successfully used for the synthesis of 1-alkoxyisoquinolines.
Radiohalogenated for proteins
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, (2008/06/13)
Haloaryl compounds bearing a defined functional group or precursor are metalated with either Sn(n-Bu)3 or SnMe3. The resulting aryltin compound may be transmetalated in site-specific reaction with one of the following organometallic