[4+2] Cycloaddition on densely functionalized cyclopentadiene
摘要:
The Diels-Alder (DA) and hetero-Diels-Alder (HDA) reaction of N-(2,4-dicyano-1,5-dimethyl-3-phenylcyclopenta-2,4-dienyl)-2,2,2-trifluoroacetamide 1 can be conveniently used for the synthesis of biarylic and polycyclic compounds, depending on whether you use alkynes or alkenes as dienophiles. We observe a totally regioselectivity and endo-diastereoselectivity of the cycloaddition reactions. (C) 2011 Elsevier Ltd. All rights reserved.
[4+2] Cycloaddition on densely functionalized cyclopentadiene
作者:Stefania Fusi、Serena Ferrini、Fabio Ponticelli
DOI:10.1016/j.tetlet.2011.10.058
日期:2011.12
The Diels-Alder (DA) and hetero-Diels-Alder (HDA) reaction of N-(2,4-dicyano-1,5-dimethyl-3-phenylcyclopenta-2,4-dienyl)-2,2,2-trifluoroacetamide 1 can be conveniently used for the synthesis of biarylic and polycyclic compounds, depending on whether you use alkynes or alkenes as dienophiles. We observe a totally regioselectivity and endo-diastereoselectivity of the cycloaddition reactions. (C) 2011 Elsevier Ltd. All rights reserved.
Rearrangement of 3,5-dicyano-1,4-dihydropyridines to densely functionalized cyclopentadienes