通过铂催化的烯炔环化和环丙烷裂解实现的新型环化反应
New annulations via platinum-catalyzed enyne cyclization and cyclopropane cleavage.
作者信息
Nevado Cristina, Ferrer Catalina, Echavarren Antonio M
机构信息
Institute of Chemical Research of Catalonia, 43007 Tarragona, Spain.
出版信息
Org Lett. 2004 Sep 2;6(18):3191-4. doi: 10.1021/ol0486573.
PMID:15330620
Abstract
[reaction: see text] Oxidative ring opening of 3-oxabicyclo[4.1.0]hept-4-enes, formed by the intramolecular Pt(II)-catalyzed cyclopropanation of enol ethers by alkynes, gives oxepane derivatives. Alternatively, the acid-catalyzed opening of the cyclopropane ring leads to dihydrobenzofurans or 3,4-dihydro-2H-chromenes.
摘要
[反应：见正文] 由炔烃对烯醇醚进行分子内Pt(II)催化的环丙烷化反应形成的3-氧杂双环[4.1.0]庚-4-烯的氧化开环反应可得到氧杂环庚烷衍生物。另外，环丙烷环的酸催化开环反应则生成二氢苯并呋喃或3,4-二氢-2H2H-色烯。
Zotero 插件