S~~~WZY: A high regioselectivity has been observed in the palladia catalyzed allylation of "soft" nucleophiles (pentane-2,4-dione and 4-hydroxy-6methyl-2pyrone) when both allylic termini have the same steric requirements and different electronic features. The palladium catalyzed allylation of proto
On the regiochemistry of nucleophilic attack on 2-halo π-allyl complexes. Part 3: The electronic effect of phenoxide ion and the ligand
✍ Scribed by Michael G. Organ; Elena A. Arvanitis; Stephen J. Hynes
- Publisher
- Elsevier Science
- Year
- 2002
- Tongue
- French
- Weight
- 179 KB
- Volume
- 43
- Category
- Article
- ISSN
- 0040-4039
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📜 SIMILAR VOLUMES
k: Vricfc. J. C'/iiwi. S o ( . C/imi. C ' o i ) i i i i i i i i . 1976. 64: h) .I Kuyper. I. k: V r i c ~c . J. Org:aiioiiii,/ C / w i i i . 1976. 116. 1. I). Stdlks. .I O r , q i i i i i ~i i i e ~/ . ('/wiii. 1991. 4/R. 127: h) S. Freitap. W, Kolod/iqski. t'. P:iuer. D. Stalks. .I. C/iiwi. S i c .
Nucleophilic attack of phenoxide ion occurs primarily at the central carbon of halo-substituted (n-allyl)Pd complexes.
Both 1-and 2-Bromo(πallyl)palladium Complexes. -The regioselectivity of the nucleophilic attack of phenolates (II) to π-allyl(Pd) complexes generated from 1,3-and 2,3-dibromopropenes (I) and (V) are examined. The formation of (III) from the 1,3-dibromo derivative (I) involves a primarily attack at