Diastereoselective 1,3-dipolar cycloaddition of Sm(III)-azomethine ylides to α,β-unsaturated esters

Autor: Aurelio G. Csaky, Carlos Alvarez-Ibarra, M. Martínez, M. Luz Quiroga
Rok vydání: 1996
Předmět:
Zdroj: Tetrahedron Letters. 37:6573-6574
ISSN: 0040-4039
DOI: 10.1016/0040-4039(96)01402-5
Popis: Sm(III)-Azomethine ylides were generated by fragmentation of the iminodithiocarbonates 1 with SmI2 in THF. 1,3-Dipolar cycloaddition of these species with α,β-unsaturated esters 3 afforded the highly functionalized 2-methylthio-Δ1-pyrrolines 4 with good yields and diastereoselectivities.
Databáze: OpenAIRE