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Transition-metal catalysis in michael addition of β-dicarbonyls : Tuning of the reaction conditions

✍ Scribed by Pavel Kočovaký; Dalimil Dvořák

Book ID
104219200
Publisher
Elsevier Science
Year
1986
Tongue
French
Weight
249 KB
Volume
27
Category
Article
ISSN
0040-4039

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✦ Synopsis

2,4-Pentanedionato)copper(I) and bis(2,4_pentanedionato)copper(II) together with boron trifluoride etherate catalyze Michael addition of B-dicarbonyls to cyclohexenone, cyclopentenone, Z-methylcyclopentenone, and 3-thienylidenemalonaldehyde.

Carbon-carbon bond formation is of prime importance in synthetic organic chemistry. One of

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Several transition-metal-based Lewis acid catalysts, especially FeCl 3 ¥ 7 H 2 O, CrCl 3 ¥ 6 H 2 O, and SnCl 4 ¥ 4 H 2 O, were shown to be highly effective for aza-type Michael reactions between electrophilic a,b-unsaturated compounds and both aliphatic and aromatic amines in aqueous solution. Advan