Ruthenium-Catalyzed Carbonylative Cycloaddition of α-Keto Lactones with Alkenes or Alkynes: The Participation of an Ester-Carbonyl Group in Cycloaddition Reactions as the Two-Atom Assembling Unit
reaction of benzofuran-2,3-dione derivatives 1 with CO and alkenes (or alkynes) results in a carbonylative [2+2+1] cycloaddition in which the ester-carbonyl group is incorporated into a two-atom assembling unit to give spirolactone derivatives 2. This reaction provides the first example of an ester-carbonyl group participating in a carbonylativecycloaddition reaction.
(N-substituted-2-hydroxy) benzamides and N-substituted-2-hydroxy-alpha-oxo-benzeneacetamides and pharmaceutical compositions thereof having activity as modulators of the arachidonic acid cascade
申请人:WARNER-LAMBERT COMPANY
公开号:EP0221346B1
公开(公告)日:1991-01-30
ZWANENBURG D. J.; REYNEN W. A. P., SYNTHESIS <SYNT-BF>, 1976, NO 9, 624-625