Developing Molecular Diversity in the Construction of a Family of Bicyclic Isoxazolines Scaffolds: Control of Regio-and Diastereoselectivities
作者:Gianluca Giorgi、L. Raffaella Lampariello、Giacomo Minetto、M. Laura Paoli、Vincenzo Riello、Manuela Rodriquez、Alessandro Sega
DOI:10.1002/ejoc.200300480
日期:2003.12
regioselective approach to bicyclic isoxazolines has been found starting from 4-cyclopentene-1,3-dione or 2-cyclopentenones. 1,3-Dipolar cycloaddition with nitrile oxides gave different semirigid bicyclic scaffolds with at least four points of elaboration for molecular diversity. From these intermediates, two families of regioisomer isoxazolines can be prepared with complete control of their relative stereochemistry
已发现从 4-环戊烯-1,3-二酮或 2-环戊烯酮开始的双环异恶唑啉的完全区域选择性方法。1,3-偶极环加成与腈氧化物产生不同的半刚性双环支架,其中至少有四个关于分子多样性的详细说明。从这些中间体,可以在完全控制它们的相对立体化学的情况下制备两类区域异构体异恶唑啉。为了开发化合物阵列的连续平行制备,展示了对官能团的进一步阐述。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2003)