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ChemInform Abstract: [4 + 2]Cycloaddition of N-Buta-1,3-dienylsuccinimide to gem-Substituted Vinyl Phosphonates.

✍ Scribed by Nathalie Defacqz; Roland Touillaux; Jacqueline Marchand-Brynaert

Publisher
John Wiley and Sons
Year
2010
Weight
34 KB
Volume
30
Category
Article
ISSN
0931-7597

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✦ Synopsis

1999 organo-phosphorus compounds, isocyclic C derivatives organo-phosphorus compounds, isocyclic C derivatives S 0084 12 -181 [4 + 2]Cycloaddition of N-Buta-1,3-dienylsuccinimide to gem-Substituted Vinyl Phosphonates.

-The cycloaddition reactions with phosphonates (II) give nearly equimolar amounts of exo and endo products. The stereoselectivity can be enhanced in the presence of ZnI 2 . Control experiments with monosubstituted dienophiles of type (V) reveal a remarkably decreased reactivity for monosubstituted substrates.

-(DEFACQZ, NATHALIE;

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