| Literature DB >> 31613104 |
Hui Liu1, Thomas Hansen2, Si-Yu Zhou1, Guo-En Wen1, Xu-Xue Liu1, Qing-Ju Zhang1, Jeroen D C Codée2, Richard R Schmidt1,3, Jian-Song Sun1.
Abstract
The 2,2-dimethyl-2-(ortho-nitrophenyl)acetyl (DMNPA) group permits, via robust neighboring group participation (NGP) or long distance participation (LDP) effects, the stereocontrolled 1,2-trans, 1,2-cis, as well as β-2,6-dideoxy glycosidic bond generation, while suppressing the undesired orthoester byproduct formation. The robust stereocontrol capability of the DMNPA is due to the dual-participation effect from both the ester functionality and the nitro group, verified by control reactions and DFT calculations and further corroborated by X-ray spectroscopy.Entities:
Year: 2019 PMID: 31613104 DOI: 10.1021/acs.orglett.9b03321
Source DB: PubMed Journal: Org Lett ISSN: 1523-7052 Impact factor: 6.005