𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Fischer chromium carbene complexes as nucleophiles in palladium-catalyzed allylic substitution reactions

✍ Scribed by Dušan Drahoňovský; Vincent Borgo; Dalimil Dvořák

Book ID
104252145
Publisher
Elsevier Science
Year
2002
Tongue
French
Weight
106 KB
Volume
43
Category
Article
ISSN
0040-4039

No coin nor oath required. For personal study only.

✦ Synopsis

The Pd-catalyzed reaction of carbanions derived from chromium aminocarbene complexes with allylic acetates and carbonates smoothly affords the corresponding allyl-substituted aminocarbenes. On the contrary, the same reaction of the anion derived from pentacarbonyl[(methoxy)methylcarbene]chromium(0) with cinnamyl acetate affords 5-methoxy-1-phenylhexa-1,5diene, the product of 1-methoxyethen-1-yl group transfer.

📜 SIMILAR VOLUMES

α-Amino ester derivatives as nucleophile
α-Amino ester derivatives as nucleophiles in stereoselective palladium catalysed allylic substitution reactions
✍ I Craig Baldwin; Jonathan MJ Williams; R Paul Beckett 📂 Article 📅 1995 🏛 Elsevier Science 🌐 English ⚖ 177 KB

The stereoselective palladium catalysed reaction between aUyl acetates and imino esters is reported. For suitable substrates, diastereoselectivities are good (up to 84:16), and in the presence of enantiomerically pare phosphorus-containing oxazoline ligands, the enantioselectivities (up to 97% ee) a