[EN] BRIDGED TRICYCLIC CARBAMOYLPYRIDONE COMPOUNDS AND THEIR PHARMACEUTICAL USE [FR] COMPOSÉS DE CARBAMOYLPYRIDONE TRICYCLIQUE PONTÉS ET LEUR UTILISATION PHARMACEUTIQUE
Assembly of Terpenoid Cores by a Simple, Tunable Strategy
作者:Ouidad Lahtigui、Fabien Emmetiere、Wei Zhang、Liban Jirmo、Samira Toledo-Roy、John C. Hershberger、Jocelyn M. Macho、Alexander J. Grenning
DOI:10.1002/anie.201608863
日期:2016.12.19
Oxygenated, polycyclic terpenoid natural products have important biological activities. Although total synthesis of such terpenes is widely studied, synthetic strategies that allow for controlled placement of oxygen atoms and other functionality remains a challenge. Herein, we present a simple, scalable, and tunable synthetic strategy to assemble terpenoid‐like polycycloalkanes from cycloalkanones
Pd-Catalyzed allylic alkylation of secondary nitroalkanes
作者:Keisuke Maki、Motomu Kanai、Masakatsu Shibasaki
DOI:10.1016/j.tet.2007.03.062
日期:2007.5
A Pd-catalyzed allylicalkylation of secondary nitroalkanes, using a catalytic amount of external base, was developed. Simple allyl carbonate and monosubstituted allyl carbonates were used as electrophiles, and bulky secondary nitroalkanes were used as nucleophiles. This is the first catalytic allylicalkylation of bulky secondary nitroalkanes, such as 2-nitroheptane. The use of the strong base DBU