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Selective diels-alder reactions in aqueous solutions and suspensions

โœ Scribed by Ronald Breslow; Uday Maitra; Darryl Rideout

Publisher
Elsevier Science
Year
1983
Tongue
French
Weight
212 KB
Volume
24
Category
Article
ISSN
0040-4039

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โœฆ Synopsis

Diels-Alder

reactions show high endo/exo selectivities in aqueous suspensions.

We have described 1 the very large rate accelerations which occur when some common Diels-Alder reactions are performed in water solution. The principal effect was ascribed to hydrophobic association of the diene with the dienophile.

๐Ÿ“œ SIMILAR VOLUMES

On the origin of product selectivity in
On the origin of product selectivity in aqueous diels-alder reactions
โœ Ronald Breslow; Uday Maitra ๐Ÿ“‚ Article ๐Ÿ“… 1984 ๐Ÿ› Elsevier Science ๐ŸŒ French โš– 109 KB

The high endo/exo product ratio in the Diels-Alder reaction of cyclopentadiene with methy2. vinyl! ketone in water does not reflect aggregation, but the ratio is affected by salts which change the hydrophobicity of the medium.

Kinetic effect of pressure on Michael an
Kinetic effect of pressure on Michael and Dielsโ€“Alder reactions in aqueous solutions
โœ Gรฉrard Jenner ๐Ÿ“‚ Article ๐Ÿ“… 1999 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 90 KB ๐Ÿ‘ 2 views

The kinetic pressure effect on some Michael-like and [4 2] cycloadditions in aqueous solution was studied. This effect is complex and variable, in contrast to the pressure dependence of rate constants in organic solvents. In order to determine the origin of this kinetic behavior, systematic solvent

Photo-induced exo-Selective Diels-Alder
Photo-induced exo-Selective Diels-Alder Reactions
โœ Dr. Bipin Pandey; Dipl.-Chem. Pramod V. Dalvi ๐Ÿ“‚ Article ๐Ÿ“… 1993 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 283 KB ๐Ÿ‘ 1 views
โ€œMicellarโ€ catalysis in the aqueous inte
โ€œMicellarโ€ catalysis in the aqueous intermolecular diels-alder reaction: rate acceleration and enhanced selectivity
โœ Paul A. Grieco; Philip Garner; Zhen-min He ๐Ÿ“‚ Article ๐Ÿ“… 1983 ๐Ÿ› Elsevier Science ๐ŸŒ French โš– 192 KB

The intermolecular Diels-Alder reactions employing dienophiles k and 2 with diene < have been examined in water. The significantly enhanced rates, as well as the improved selectivity observed in water stand in sharp contrast to the results observed in hydrocarbon solvents: