(<i>E</i>)-2-Methoxyethene-1-sulfonyl fluoride as a precursor of acetylene for synthesis of C<sub>1</sub>/C<sub>2</sub> non-functionalized pyrrolo[2,1-<i>a</i>]isoquinoline derivatives
作者:Jiahong Ma、Weikang Lin、Hua-Li Qin
DOI:10.1039/d3nj03325b
日期:——
A Cu(I)-promoted exclusive synthesis of pyrrolo[2,1-a]isoquinoline derivatives involving (E)-2-methoxyethene-1-sulfonyl fluoride (MESF) and isoquinolinium N-ylides is described. MESF was used as an acetylene substitute for [3+2] cycloaddition and a variety of C1/C2 non-functionalized pyrrolo[2,1-a]isoquinoline derivatives were prepared.
描述了Cu( I ) 促进的吡咯并[2,1- a ]异喹啉衍生物的排他合成,涉及 ( E )-2-甲氧基乙烯-1-磺酰氟 (MESF) 和异喹啉鎓N-叶立德。采用MESF作为乙炔替代物进行[3+2]环加成反应,制备了多种C 1 /C 2非官能化吡咯并[2,1- a ]异喹啉衍生物。
Direct synthesis of pyrrolo[2,1-a]isoquinolines by 1,3-dipolar cycloaddition of stabilized isoquinolinium N-ylides with vinyl sulfonium salts
A direct and efficient synthesis of 2,3-unsubstituted 1-acylpyrrolo[2,1-a]isoquinolines is described. The 1,3-dipolar cycloaddition of stabilized isoquinolinium N-ylides with vinyl sulfonium salts features simple experimental procedures, mild conditions, and moderate to good yields. (C) 2013 Elsevier Ltd. All rights reserved.