期刊
ORGANIC LETTERS
卷 12, 期 23, 页码 5450-5453出版社
AMER CHEMICAL SOC
DOI: 10.1021/ol102294g
关键词
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资金
- National Natural Science Foundation of China [20772006, 21072020]
- Beijing Institute of Technology
A series of squaramide-based organocatalysts were facilely synthesized and applied as hydrogen bonding organocatalysts in the enantioselective Michael addition of nitroalkanes to chalcones. These organocatalysts promoted the Michael addition with low catalyst loading under high temperature. (80 degrees C), affording the desired R or S enantiomers of the products flexibly in high yields with excellent enantioselectivities (93-96% ee) by the appropriate choice of organocatalysts.
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