Fused tetracycles with a benzene or cyclohexadiene core: [2 + 2 + 2] cycloadditions on macrocyclic systems.

Autor: Brun, Sandra, Garcia, Lídia, González, Iván, Torrent, Anna, Dachs, Anna, Pla-Quintana, Anna, Parella, Teodor, Roglans, Anna
Předmět:
Zdroj: Chemical Communications; Sep2008, Vol. 2008 Issue 36, p4339-4341, 3p
Abstrakt: A series of fused tetracycles with a benzene or cyclohexadiene core (2a–h) is satisfactorily prepared by intramolecular [2 + 2 + 2] cycloadditions of triynic and enediynic macrocycles (1a–h) under RhCl(PPh3)3 catalysis; the enantioselective cycloaddition of macrocycles 1b and 1e gives chiral tetracycles with moderate enantiomeric excess. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index