Copper(I)-Catalyzed Enantioselective Boryl Substitution of Allyl Acylals: An Efficient Approach for Enantioenriched α-Chiral γ-Acetoxyallylboronates
Yuta Takenouchi, Ryoto Kojima, Riko Momma, Hajime Ito*
*Division of Applied Chemistry and Frontier Chemistry Center, Faculty of Engineering, Hokkaido University, Sapporo, Hokkaido, 060-8628, Japan, Email: hajitoeng.hokudai.ac.jp
Y. Takenouchi, R. Kojima, R. Momma, H. Ito, Synlett, 2017, 28, 270-274.
DOI: 10.1055/s-0036-1588354 (free Supporting Information)
see article for more reactions
A copper(I)-catalyzed γ-boryl substitution of allyl acylals enables an enantioselective synthesis of α-chiral γ-acetoxyallylboronates with high E/Z selectivity and enantioselectivity. A subsequent reaction with aldehydes provides monoprotected anti-1,2-diol derivatives with high stereoselectivity.
see article for more examples
boron, allylboronates, enantioselectivity, copper, catalysis, allylation