Regioselective Sonogashira Couplings of 2,4-Dibromoquinolines. A Correction
摘要:
Heteronuclear multiple bond correlation (HMBC) was used to determine the regiochemical outcome of palladium-catalyzed carbon-carbon bond formation between 2,4-dibromoquinolines and terminal acetylenes. The observed regioselectivity of these coupling reactions is opposite to that reported in the literature for analogous reactions.
Solvent-Free Mechanoradical-Mediated Minisci-Type C–H Alkylation of N-Heteroarenes
作者:Xiang Gu、Taoyong Wang、KaKing Yan
DOI:10.1021/acs.orglett.3c02480
日期:2023.10.13
mechanochemistry is described. Under solvent-free ball-milling, mechanoradicals (SO4•–) were generated from persulfate via in situ homolysis in the solid state, at as low as −50 °C. These highly oxidizing radicals readily transform alkyl trifluoroborate salts to their corresponding carbon-based radicals for subsequent C–C bond formation with N-heterocycles. Mechanistic studies unambiguously confirmed the involvement
Regioselective Sonogashira Couplings of 2,4-Dibromoquinolines. A Correction
作者:Jason M. Nolan、Daniel L. Comins
DOI:10.1021/jo034122w
日期:2003.5.1
Heteronuclear multiple bond correlation (HMBC) was used to determine the regiochemical outcome of palladium-catalyzed carbon-carbon bond formation between 2,4-dibromoquinolines and terminal acetylenes. The observed regioselectivity of these coupling reactions is opposite to that reported in the literature for analogous reactions.