1,3-Dipolar cycloaddition of nitrile oxides to 1-phenylsulfonyl-1,3-butadienes: synthesis of 3-(4,5-dihydroisoxazol-5-yl)pyrroles
作者:Sung Hee Hwang、Mark J Kurth
DOI:10.1016/s0040-4039(01)02069-x
日期:2002.1
Novel heterocyclic compounds containing the 3-(4,5-dihydroisoxazol-5-yl)pyrrole ring system were synthesized in good yields (66–78%) by regioselective 1,3-dipolar cycloaddition of nitrile oxides to 1-phenylsulfonyl-1,3-dienes followed by Barton–Zard pyrrole annulation.
含有3-(4,5-二氢异恶唑-5-基)吡咯环系统的新型杂环化合物是通过腈选择性地将1,3-偶极环氧化物加成腈至1-苯基磺酰基-1合成的,收率良好(66-78%), 3-二烯,然后进行Barton–Zard吡咯环空。