期刊
CHEMICAL SCIENCE
卷 6, 期 5, 页码 2765-2769出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5sc00457h
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资金
- JSPS
The single-step construction of various densely oxygenated carboskeletons was achieved by radical-based two- and three-component coupling reactions of sugar derivatives, without the need for light or heat. Et3B/O-2-mediated decarbonylation readily converted alpha-alkoxyacyl tellurides to alpha-alkoxy carbon radicals, which intermolecularly added to glyoxylic oxime ether or enones to provide the two- component adducts. Furthermore, the three-component adducts were produced by an intermolecular aldol reaction between the aldehyde and the boron enolates generated by capture of the two-component radical intermediates by Et3B. This powerful coupling method serves as a novel strategy for the convergent synthesis of polyol natural products.
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