Direct access to functionalized benzotropones, azepanes, and piperidines by reductive cross-coupling of α-bromo enones with α-bromo enamides
作者:Timothy K. Beng、Kayla Sincavage、Ann Wens V. Silaire、Amir Alwali、Daniel P. Bassler、Laura E. Spence、Oliver Beale
DOI:10.1039/c5ob00517e
日期:——
The synthesis of functionalized azepenes and piperidines bearing an α-cycloheptenone or benzotropone derivative has been accomplished through direct reductive cross-coupling of α-bromo eneformamides or enecarbamates with highly versatile α-bromo benzotropone derivatives, under cobalt catalysis. The coupling products have been further elaborated to other synthetically useful aza-heterocyclic frameworks