4-氰基香豆素作为亲双烯体在高效合成高度取代二苯并吡喃酮中的应用。
Use of 4-cyanocoumarins as dienophiles in a facile synthesis of highly substituted dibenzopyranones.
作者信息
Jung Michael E, Allen Damian A
机构信息
Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095, USA.
出版信息
Org Lett. 2009 Feb 5;11(3):757-60. doi: 10.1021/ol802792g.
PMID:19138152
Abstract
A new synthesis of dibenzopyranones 14 is reported via the Diels-Alder cycloaddition of 4-cyanocoumarins 12 with 1-silyloxydienes 10 to give the adducts 13 which are then converted into 14 in one step via treatment with base and loss of the cyano and silyloxy groups.
摘要
报道了一种二苯并吡喃酮14的新合成方法，该方法通过4-氰基香豆素12与1-硅氧基二烯10的狄尔斯-阿尔德环加成反应得到加合物13，然后通过用碱处理并失去氰基和硅氧基，一步将其转化为14。
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