Journal
ORGANIC LETTERS
Volume 22, Issue 1, Pages 164-167Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.orglett.9b04108
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Funding
- National Natural Science Foundation of China [21672055, U1604283]
- 111 Project [D17007]
- Program for Youth Backbone Teacher Training in University of Henan Province [2017GGJS042]
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A straight synthetic approach to fused polycyclic tropane scaffold formation through an asymmetric dearomatization cycloaddition process of 2-nitrobenzofurans with cyclic azomethine ylides was successfully developed. In the presence of a chiral copper complex, derived from Cu(OAc)(2) and a diphosphine ligand, a series of fused polycyclic tropane derivatives were obtained in high yields (75-91%) with excellent enantioselectivities (90-98%). The utility of this method was showcased by the facile transformation of product.
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