Hydroxy-directed diastereoselective ene reaction of triazolinediones with chiral allylic alcohols
β Scribed by Waldemar Adam; Bernd Nestler; Aurelia Pastor; Thomas Wirth
- Publisher
- Elsevier Science
- Year
- 1998
- Tongue
- French
- Weight
- 200 KB
- Volume
- 39
- Category
- Article
- ISSN
- 0040-4039
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π SIMILAR VOLUMES
The ene reaction of PTAD with the chiral allylic alcohol 4-methyl-3-penten-2-01 exhibits high threo diastereoselectivity in non polar solvents, whereas in polar solvents the diastereoselectivity decreases substas!ially. These results are discussed in terms of a steering effect between the hydroxyl a
Ene reaction / Manes, vinyl-/ Triazolinediones / Cycloaddition / Regioselectivity / Diastereoselectivity The ene reaction of 4-methyl-l,2,4-triazoline-3,5-dione stereoselectivity. For the former we invoke preferential clea-(MTAD) with vinylsilanes 1 has been investigated. In all cases vage of the C