Synergistic Catalysis: Enantioselective Addition of Alkylbenzoxazoles to Enals
作者:Marta Meazza、Victor Ceban、Mateusz B. Pitak、Simon J. Coles、Ramon Rios
DOI:10.1002/chem.201404565
日期:2014.12.15
A novel catalytic enantioselective methodology based on synergisticcatalysis is reported. The strategy involves: 1) the metal‐Lewis‐acid activation of alkylazaarenes, and 2) the secondary‐amine activation of enals. Consequently, highly functionalized chiral alkylazaarenes were obtained in good yields and with reasonable stereoselectivity.
Synergistic catalysis: highly diastereoselective benzoxazole addition to Morita–Baylis–Hillman carbonates
作者:Victor Ceban、Piotr Putaj、Marta Meazza、Mateusz B. Pitak、Simon J. Coles、Jan Vesely、Ramon Rios
DOI:10.1039/c4cc00728j
日期:——
An expedited method has been developed for the diastereoselective synthesis of highly functionalized alkyl-azaarene systems with good yields and high diastereoselectivities (>15 : 1 dr).