Enantioselective transformation of allyl carbonates into branched allyl carbamates by using amines and recycling CO2 under iridium catalysis.
Enantioselective transformation of allyl carbonates into branched allyl carbamates by using amines and recycling CO2 in the presence of an Ir complex and K3PO4 was accomplished. This provided branched allyl carbamates in fair to excellent yields with up to 98:2 regioselectivity and 93 % ee. The role of CO2 in this transformation is discussed as well.
Department of Chemistry, State Key Laboratory of Pollution Control and Resource Reuse, Tongji University, 1239 Siping Road, Shanghai 200092 (P. R. China), Fax: (+86) 21-65981376.
Sheng-Cai
SC
Zheng
Min
M
Zhang
Xiao-Ming
XM
Zhao
allylcarbamates; carbon dioxide; domino reactions; enantioselectivity; iridium