𝔖 Bobbio Scriptorium
✦   LIBER   ✦

The effects of amine and acid catalysts on efficient chelation-assisted hydroacylation of alkene with aliphatic aldehyde

✍ Scribed by Eun-Ae Jo; Chul-Ho Jun


Book ID
104096307
Publisher
Elsevier Science
Year
2009
Tongue
French
Weight
287 KB
Volume
50
Category
Article
ISSN
0040-4039

No coin nor oath required. For personal study only.

✦ Synopsis


Efficient intermolecular hydroacylation of 1-alkene with aliphatic aldehyde was achieved using a catalyst mixture of cyclohexylamine, p-trifluoromethylbenzoic acid, Wilkinson's complex and 2-amino-3-picoline. The formation of unwanted aldol side-product was avoided through the conjugate addition of cyclohexylamine to the aldol intermediate that was initially generated, followed by the retro-Mannich-type fragmentation of the resulting b-aminoaldimine.


πŸ“œ SIMILAR VOLUMES


Solvent-free chelation-assisted intermol
✍ Chul-Ho Jun; Jong-Hwa Chung; Dae-Yon Lee; AndrΓ© Loupy; Saber Chatti πŸ“‚ Article πŸ“… 2001 πŸ› Elsevier Science 🌐 French βš– 73 KB

As a green alternative to classical homogeneous catalyst in toluene in closed vessels, the intermolecular hydroacylation of 1-alkenes with aldehydes by Rh(I) complex (Wilkinson catalyst) can be realized efficiently under solvent-free conditions. When coupled to microwave activation, it results in a