期刊
ASIAN JOURNAL OF ORGANIC CHEMISTRY
卷 10, 期 3, 页码 545-548出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/ajoc.202000714
关键词
asymmetric catalysis; Pd-catalyzed asymmetric cycloaddition; furanochromanone; vinylethylene carbonates
资金
- National Natural Science Foundation of China [21871179]
- Shanghai Jiao Tong University
An efficient method for the enantio- and diastereoselective formation of furanochromanones has been developed via Pd-catalyzed asymmetric allylic cycloaddition of vinylethylene carbonates with 3-nitrochromone, yielding products with versatile nitro-group and multi-stereocenters in high yields with excellent enantioselectivities and moderate diastereoselectivities.
An efficient method for the enantio- and diastereoselective formation of furanochromanones has been developed via Pd-catalyzed asymmetric allylic cycloaddition of vinylethylene carbonates with 3-nitrochromone. By using a palladium complex generated in situ from [Pd-2(dba)(3)].CHCl3 and phosphoramidite L4 as a catalyst, the transformation allows to rapid access furanochromanones bearing versatile nitro-group and multi-stereocenters in high yields with excellent enantioselectivities and moderate diastereoselectivities.
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