共 50 条
One-Pot Synthesis of 3,4-Dihydrocoumarins via C-H Oxidation/Conjugate Addition/Cyclization Cascade Reaction
被引:1
|作者:
Kim, Dae Young
[1
]
机构:
[1] Soonchunhyang Univ, Dept Chem, Asan 31538, Chungnam, South Korea
来源:
基金:
新加坡国家研究基金会;
关键词:
organocatalysis;
one-pot reaction;
ortho-quinone methides;
dihydrocoumarins;
oxazolones;
ORTHO-QUINONE METHIDES;
ASYMMETRIC-SYNTHESIS;
ENANTIOSELECTIVE SYNTHESIS;
CHIRAL DIHYDROCOUMARINS;
CYCLOADDITIONS;
DERIVATIVES;
ALKYLATION;
ALDEHYDES;
ACCESS;
ROUTE;
D O I:
10.3390/molecules28196853
中图分类号:
Q5 [生物化学];
Q7 [分子生物学];
学科分类号:
071010 ;
081704 ;
摘要:
The 3,4-dihydrocoumarin derivatives were obtained from 2-alkyl phenols and oxazolones via C-H oxidation and cyclization cascade in the presence of silver oxide (Ag2O) and p-toluenesulfonic acid as a Bronsted acid catalyst. This approach provides a one-pot strategy to synthesize the multisubstituted 3,4-dihydrocoumarins with moderate to high yields (64-81%) and excellent diastereoselectivity (>20:1).
引用
收藏
页数:11
相关论文