Stereoselective Synthesis of Isoxazolinobenzoxepanes via Intramolecular Nitrile Oxide Cycloaddition
作者:P. Perumal、K. Ramachandiran、K. Karthikeyan、T. Nandhakumar、D. Muralidharan
DOI:10.1055/s-0030-1260201
日期:2011.10
Concise routes to the synthesis of indole-tethered nitrile oxides have been developed, and their intramolecular nitrile oxide cycloadditions were studied. Heterocyclic scaffolds involving isoxazolinobenzoxepane frameworks have been achieved via intramolecular nitrile oxide cycloaddition of 3-[1-(2-allyloxyphenyl)-2-nitroethyl]-1H-indole derivatives using (Boc)2O and DMAP. This protocol affords products
已经开发了合成吲哚链状丁腈氧化物的简便方法,并研究了其分子内丁腈氧化物的环加成反应。涉及isoxazolinobenzoxepane框架杂环支架已经通过3-分子内氧化腈环加成获得[1-(2-烯丙氧基苯基)-2-硝基乙基〕-1- ħ使用(BOC) -吲哚衍生物2 O和DMAP。该协议为产品提供了出色的反选择性。 分子内一氧化氮环加成反应-迈克尔加成反应-异恶唑啉代苯并氧杂庚烷-反式选择性