共 63 条
Asymmetric Allylic C-H Oxidation for the Synthesis of Chromans
被引:124
作者:
Wang, Pu-Sheng
[1
,2
]
Liu, Peng
[1
,2
]
Zhai, Yu-Jia
[1
,2
]
Lin, Hua-Chen
[1
,2
]
Han, Zhi-Yong
[1
,2
]
Gong, Liu-Zhu
[1
,2
,3
]
机构:
[1] Univ Sci & Technol China, Hefei Natl Lab Phys Sci Microscale, Hefei 230026, Peoples R China
[2] Univ Sci & Technol China, Dept Chem, Hefei 230026, Peoples R China
[3] Collaborat Innovat Ctr Chem Sci & Engn, Tianjin, Peoples R China
关键词:
VITAMIN-E;
SECALONIC ACIDS;
ENANTIOSELECTIVE APPROACH;
TERMINAL OLEFINS;
CHIRAL CHROMANS;
ALKYLATION;
ALCOHOLS;
FUNCTIONALIZATION;
ALPHA;
TETRAHYDROXANTHONE;
D O I:
10.1021/jacs.5b08477
中图分类号:
O6 [化学];
学科分类号:
0703 ;
摘要:
An enantioselective intramolecular allylic C-H oxidation to generate optically active chromans has been accomplished under the cooperative catalysis of a palladium complex of chiral phosphoramidite ligand and 2-fluorobenzoic acid. Mechanistic studies suggest that this reaction commences with a Pd-catalyzed allylic C-H activation event and then undergoes asymmetric allylic alkoxylation. The synthetic significance of the method has been embodied by concisely building up a key chiral intermediate to access (+)-diversonol.
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页码:12732 / 12735
页数:4
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