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Rhodium-Catalyzed Regioselective Double Annulation of Enaminones with Propargyl Alcohols: Rapid Access to Arylnapthalene Lignan Derivatives
被引:27
|作者:
Nagireddy, Attunuri
[1
,2
]
Dattatri
[1
,2
]
Kotipalli, Ramesh
[1
,2
]
Nanubolu, Jagadeesh Babu
[3
]
Reddy, Maddi Sridhar
[1
,2
]
机构:
[1] CSIR Indian Inst Chem Technol, Dept Oragan Synth & Proc Chem, Hyderabad 500007, India
[2] Acad Sci & Innovat Res, Ghaziabad 201002, India
[3] CSIR IICT, Analyt Dept, Hyderabad 500007, India
来源:
JOURNAL OF ORGANIC CHEMISTRY
|
2022年
/
87卷
/
02期
关键词:
C-H FUNCTIONALIZATION;
ACTIVATION;
BENZANNULATION;
CYCLIZATION;
NAPHTHOLS;
ALKYNES;
YLIDES;
YNONES;
D O I:
10.1021/acs.joc.1c02575
中图分类号:
O62 [有机化学];
学科分类号:
070303 ;
081704 ;
摘要:
We present here a rhodium-catalyzed oxidative three-point double annulation of enaminones with propargylic alcohols via a C-H and a C-N bond activation to access arylnaphthalene-based lignan derivatives. The key step in the reaction is the regioselective insertion of propargylic alcohol into the rhoda-cycle, a result of hydroxyl rhodium coordination. Necessary control experiments and KIE studies were conducted to determine the mechanism.
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页码:1240 / 1248
页数:9
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