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Chiral phosphoric acid catalyzed enantioselective inverse-electron-demand oxa-Diels-Alder reactions to synthesize chiral tricyclic tetrahydropyran derivatives
被引:0
|作者:
Tang, Cong-Yun
[1
,3
]
Wu, Jie
[3
,4
]
Ji, Feng-Ting
[1
,3
]
Tian, Fang
[2
]
Peng, Lin
[1
]
Wang, Liang-Liang
[3
]
机构:
[1] Shaoyang Univ, Sch Food & Chem Engn, Shaoyang 422000, Peoples R China
[2] Chinese Acad Sci, Chengdu Inst Organ Chem, Key Lab Asymmetr Synth & Chirotechnol Sichuan Prov, Chengdu 610041, Peoples R China
[3] Chinese Acad Sci, State Key Lab Phytochem & Plant Resources West Chi, Kunming Inst Bot, Kunming 650201, Peoples R China
[4] Univ Chinese Acad Sci, Beijing 101408, Peoples R China
关键词:
ORTHO-QUINONE METHIDES;
BRONSTED ACID;
CYCLOADDITIONS;
ACTIVATION;
D O I:
10.1039/d3qo01615c
中图分类号:
O62 [有机化学];
学科分类号:
070303 ;
081704 ;
摘要:
A series of enantioenriched tricyclic tetrahydropyran derivatives were achieved through chiral phosphoric acid catalyzed intramolecular inverse electron demand oxa-Diels-Alder (IEDODA) reactions, with good yields (up to 95%) and excellent stereocontrol (>20 : 1 dr, up to 99% ee). The achievement of such high enantioselectivity was ascribed to the rationally designed remote dual hydrogen bonding interaction, by which the conformation of the flexible substrate was well arranged by the catalyst in a reactive and stereoselective manner to participate in the transformation.
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页码:211 / 216
页数:6
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