Quinone Alkylation Using Organocadmium Reagents: A General Synthesis of Quinols
作者:Aaron Aponick、Jason D. McKinley、Jeffrey C. Raber、Carl T. Wigal
DOI:10.1021/jo972300d
日期:1998.4.1
Reactions of p-benzoquinone with organocadmiumreagents yield quinols, the result of quinone carbonyl monoalkylation. The reactions proceed in good yield and are devoid of bisaddition and hydroquinone byproducts. Quinone alkylations using this method show general applicability to p-benzoquinone as well as extended quinone systems using primary alkyl, secondary alkyl, and aryl reagents.
Effective Trap of Zwitterionic Intermediate during Oxygenation of Electron-Rich Naphthalenes with Singlet Oxygen by the Intramolecular Alcohol
作者:Morifumi Fujita、Masaki Ohshiba、Yayoi Yamasaki、Takashi Sugimura、Akira Tai
DOI:10.1246/cl.1999.139
日期:1999.2
The presence of a zwitterionic intermediate during the oxygenation of electron-rich naphthalenes with singlet oxygen is clarified by the clean and efficient formation of hydroperoxide via nucleophi...
An unusual stereospecific epoxidation with “per-amberlyst 15®”
作者:Charles W. Jefford、Gérald Bernardinelli、Jean-Claude Rossier、Shigeo Kohmoto、John Boukouvalas
DOI:10.1016/s0040-4039(00)89161-3
日期:1985.1
4-Methyl-4-naphthoquinol and its 5-methyl derivative on treatment with per-Amberlyst 15 are converted to the corresponding cis-2,3-epoxides in high yields. The latter structure was determined by X-ray crystallography.