Synthetic studies of marine alkaloids hapalindoles. Part I Total synthesis of (±)-hapalindoles J and M
作者:Hideaki Muratake、Mitsutaka Natsume
DOI:10.1016/s0040-4020(01)96005-3
日期:——
The first concise synthesis of marine indole alkaloids (±)-hapalindoles J (4) and M (5) was achieved in seven or six steps starting from a readily available compound 6 using important key reactions, 6 → 7 → and 8 and 35 → 41 or 5.
Highly Efficient Aerobic Oxidation of Alcohols by Using Less-Hindered Nitroxyl-Radical/Copper Catalysis: Optimum Catalyst Combinations and Their Substrate Scope
The oxidation of alcohols into their corresponding carbonylcompounds is one of the most fundamental transformations in organic chemistry. In our recent report, 2‐azaadamantane N‐oxyl (AZADO)/copper catalysis promoted the highly chemoselective aerobic oxidation of unprotected amino alcohols into amino carbonylcompounds. Herein, we investigated the extension of the promising AZADO/copper‐catalyzed