We have developed a regioselective allylation and a regio-and diastereoselective crotylation of aldehydes with pyridin-2-yl sulfides. In the process, we have also optimized the diastereoselectivity of the addition of crotyl phenyl sulfide to aldehydes.
Regio- and Diastereoselective Conjugate Addition to 4,4-Dimethylcyclohexadienones
โ Scribed by Donatella Giomi; Michela Piacenti; Alberto Brandi
- Publisher
- John Wiley and Sons
- Year
- 2005
- Tongue
- English
- Weight
- 118 KB
- Volume
- 2005
- Category
- Article
- ISSN
- 1434-193X
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๐ SIMILAR VOLUMES
A'-Imidazoline .1-oxides 1 underwent regio and diastereosclectivc qcloadditiott with a~1 isocyanates 2 to give 5.6,7.7a-tetraltydroimidam[ ## 1 .S-b][ .Z.l~osadiazol-2( I&ones 3 in cscellent yields Thermally and chemically induced retro q&addition of compounds 3 was demonstrated 0 1997 Elsevier Sc
ALlmidazoline 3-oxides I underwent regio and diastereoseleetive cycloaddition with aryl isocyanates 2 to give 5,6,7,7a-tetrahydroimidazo[l,5-b][1,2,4]oxadiazol-2(lH\_)-ones 3 in excellent yields. Thermally and chemically induced retro eyeloaddition of compounds 3 was demonstrated.