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Catalyst-free Tandem 1,3-Dipolar Cycloaddition/Aldol Condensation: Diastereoselective Construction of the Azatetraquinane Skeleton
被引:10
|作者:
Zimnitskiy, Nikolay S.
[1
]
Denikaev, Andrey D.
[1
]
Barkov, Alexey Y.
[1
]
Kutyashev, Igor B.
[1
]
Korotaev, Vladislav Y.
[1
]
Sosnovskikh, Vyacheslav Y.
[1
]
机构:
[1] Ural Fed Univ, Inst Nat Sci & Math, Ekaterinburg 620000, Russia
基金:
俄罗斯基础研究基金会;
关键词:
STABILIZED AZOMETHINE YLIDES;
STEREOSELECTIVE-SYNTHESIS;
NATURAL-PRODUCTS;
CAGE COMPOUNDS;
REGIO;
NINHYDRIN;
MULTICOMPONENT;
CRINIPELLIN;
DERIVATIVES;
CURCUMIN;
D O I:
10.1021/acs.joc.0c01127
中图分类号:
O62 [有机化学];
学科分类号:
070303 ;
081704 ;
摘要:
The one-pot regioselective and diastereoselective method for the synthesis of 5-(het)aroyl-7-(het)-arylhexahydrobenzo[4,5]pentaleno[1,6a-b](thia)pyrrolizine-6,12-diones from accessible 1,5-di(het)arylpent-4-ene-1,3-diones or curcuminoids in 38-98% yield was developed. This reaction proceeds as a sequence of 1,3-dipolar cycloaddition of azomethine ylide generated in situ from ninhydrin and (thia)proline at the C=C bond of corresponding enedione, followed by spontaneous intramolecular aldol condensation and leads to the formation of an azatetraquinane scaffold.
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页码:8683 / 8694
页数:12
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