Asymmetric N-sulfinyl dienophile Diels–Alder cycloadditions using chiral Ti(IV)-based Lewis acids
✍ Scribed by Annette Bayer; Odd R Gautun
- Book ID
- 108379742
- Publisher
- Elsevier Science
- Year
- 2000
- Tongue
- French
- Weight
- 140 KB
- Volume
- 41
- Category
- Article
- ISSN
- 0040-4039
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📜 SIMILAR VOLUMES
Enantioselective hetero Diels-Alder (HDA) reactions of 1,3-cyclohexadiene with benzyl N-sulfinylcarbamate 1a and with N-sulfinyl-p-toluensulfonamide 1b promoted by chiral Ti(IV)-based Lewis acids are reported. The obtained yields and enantiomeric excesses obtained are heavily dependant on the mode o
## Abstract For Abstract see ChemInform Abstract in Full Text.
Me2AICI -and TiCl4-catalyzed asymmetric hetero Diels-Alder cycloaddition reactions of 2,4-diphenyl-l-thiabuta-l,3-diene with (S)-N-acryloyl-and (S)-N-crotonoyl-4-benzyl-l,3-oxazolidin-2one dienophiles are described in which not only the sense of the n-facial selectivity but also the degree dramatica