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Cationic Pd(II) catalyzed regioselective intramolecular hydroarylation for the efficient synthesis of 4-aryl-2-quinolones
被引:21
|作者:
Singh, Karandeep
[1
,2
]
Malviya, Bhanwar Kumar
[1
]
Verma, Ved Prakash
[3
]
Badsara, Satpal Singh
[4
]
Bhardwaj, Vimal K.
[5
]
Sharma, Siddharth
[1
]
机构:
[1] Mohanlal Sukhadia Univ, Dept Chem, Udaipur 313001, Rajasthan, India
[2] Guru Nanak Dev Univ, UGC Ctr Advance Studies Chem, Dept Chem, Amritsar 143005, Punjab, India
[3] Banasthali Univ, Dept Chem, Newai Jodhpuriya Rd, Vanasthali 304022, India
[4] Univ Rajasthan, Ctr Adv Study, Dept Chem, MFOS Lab, JLN Marg, Jaipur 302004, Rajasthan, India
[5] Natl Inst Technol Jalandhar, Dept Chem, Jalandhar 144011, Punjab, India
来源:
关键词:
Multi-component reaction;
Ugi reaction;
Isocyanide;
Hydroarylation;
Cyclization;
Palladium catalyst;
BIOAVAILABLE OXYTOCIN ANTAGONISTS;
ONE-POT;
MULTICOMPONENT REACTION;
COMBINATORIAL SYNTHESIS;
CASCADE REACTION;
BETA-LACTAMS;
METAL-FREE;
DERIVATIVES;
CYCLIZATION;
2,5-DIKETOPIPERAZINES;
D O I:
10.1016/j.tet.2019.03.026
中图分类号:
O62 [有机化学];
学科分类号:
070303 ;
081704 ;
摘要:
A divergent regioselective palladium (II) catalyzed approach through post Ugi cyclization is described. The Ugi adduct underwent intramolecular ortho-hydroarylation via 6-endo-dig cyclization for the direct access to 4-aryl-2-quinolones. Incorporation of iodine at the C-3 position of 2-quinolone followed by Suzuki-Miyaura coupling results into the more diversified 3,4-diaryl-2-quinolones. (C) 2019 Elsevier Ltd. All rights reserved.
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页码:2506 / 2520
页数:15
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