Enhanced cis-Selectivities in Olefination Reactions Employing Ylids with Modified «Stationary Groups»
While triphenylphosphonio-ethanide manifests unsatisfactory cis-selectivitics (84.0-95.5%), tris(o,o'-difluorophenyl)- and tri-o-tolylphosphonio-ethanide react with aliphatic or aromatic aldehydes and, respectively, 2-alkenals or 2-alkynals to afford the olefins with cis/trans-ratios of 99:1 a...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | deu |
| Published: |
Swiss Chemical Society
1986-08-01
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| Series: | CHIMIA |
| Online Access: | https://www.chimia.ch/chimia/article/view/9742 |
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