Catalytic asymmetric aza Diels-Alder reactions using a chiral lanthanide Lewis acid. Enantioselective synthesis of tetrahydroquinoline derivatives using a catalytic amount of a chiral source
✍ Scribed by Haruro Ishitani; Shū Kobayashi
- Publisher
- Elsevier Science
- Year
- 1996
- Tongue
- French
- Weight
- 242 KB
- Volume
- 37
- Category
- Article
- ISSN
- 0040-4039
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## Abstract For Abstract see ChemInform Abstract in Full Text.
Chiral lanthanide trifluoromethanesulfonates (triflates) were developed and the unique structure of the triflates was revealed. In the presence of a catalytic amount of the triflate, acyl-2,3-oxazolidin-2-ones reacted with cyclopentadiene to afford the Diels-Alder adducts in high yields and with hi
catalysis I Cycloadditions I Lewis acids I Polymers A dimethylpolysiloxane chain is covalently bound to the monomeric Lewis acid catalyst (1R)-(+)-oxovanadium(1V) bis[3heptafluorobutanoylcamphorate] [ (+)-5a] at the C-10 position of the camphor moiety yielding the novel chiral polymeric (1s)-( +)-ox