Total Synthesis of Marine Alkaloid Hyellazole and its Derivatives
作者:Suchandra Chakraborty、Chandan Saha
DOI:10.1002/ejoc.201800187
日期:2018.5.8
The synthesis of the marine alkaloid hyellazole, based on a carbazole moiety, was achieved by means of classic Fischer indole cyclization with a synthesized appropriately substituted bromoaniline and subsequent use of Suzuki–Miyaura cross‐coupling with phenylboronic acid in the presence of a palladium catalyst.
作者:Zhi-Chao Qi、Qin-Xin Lou、Yuan Niu、Shang-Dong Yang
DOI:10.1039/d0cc07596e
日期:——
A palladium-catalyzed, temporary P(O) directing group assisted C–H bondarylation of carbazoles was achieved. The release of the directing group occurs spontaneously in the reaction and the mechanistic studies indicate that acid is essential for N–P bondcleavage.
Dual Palladium-Photoredox-Mediated Regioselective Acylation of Carbazoles and Indolines
作者:M. Shahid、A. J. Punnya、Sakamuri Sarath Babu、Subhendu Sarkar、Purushothaman Gopinath
DOI:10.1021/acs.joc.3c01350
日期:2023.10.6
We have described a dual palladium-photoredox-catalyzed highly regioselectiveacylation of carbazoles and indolines using molecular oxygen as the green oxidant. The reaction shows a broad substrate scope and good functional group tolerance. Late-stage functionalization of a carprofen drug derivative, further manipulation of products, and gram-scale synthesis of the acylated products were illustrated
reported using dual palladium–photoredox catalysis. Controlled monoarylation and diarylation of symmetrical and unsymmetrical carbazoles were achieved under mild reaction conditions with a broad substrate scope and functional group tolerance. Steric and electronic control the regioselectivity of the arylation of unsymmetrical carbazoles. Late-stage functionalization of a caprofen drug derivative and large-scale