Synthesis of Alkaloid Analogues from β-Amino Alcohols by β-Fragmentation of Primary Alkoxyl Radicals
作者:Alicia Boto、Dácil Hernández、Rosendo Hernández、Adriana Montoya、Ernesto Suárez
DOI:10.1002/ejoc.200600720
日期:2007.1
fragmentation of primary alkoxyl radicals is usually a minor process with respect to hydrogen abstraction and other competing reactions. However, when β-amino alcohols were used as substrates, the scission proceeded in good to excellent yields and no side reactions were observed. The fragmentation can be coupled with an allylation or alkylation reaction, to give alkaloid analogues and functionalized
伯烷氧基的裂解通常是夺氢和其他竞争反应的次要过程。然而,当使用 β-氨基醇作为底物时,断裂以良好到极好的产率进行,并且没有观察到副反应。断裂可以与烯丙基化或烷基化反应相结合,以得到生物碱类似物和官能化的氮杂环。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2007)