Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5217884 | Tetrahedron | 2013 | 8 Pages |
Abstract
The asymmetric synthesis of the A-ring fragment 2a-b of atropurpuran 1 has been achieved in 15 steps with up to 70% ee via an organocatalytic intramolecular Michael addition of nitroalkene 10. The absolute configuration of the two contiguous carbon centers in 2a and 2b was assigned to be (4S, 5R) and (4R, 5R), respectively, using the modified Mosher's method.
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Related Topics
Physical Sciences and Engineering
Chemistry
Organic Chemistry
Authors
Huan Chen, Dan Zhang, Fei Xue, Yong Qin,