共 50 条
Facile synthesis of 4H-chromene derivatives via base-mediated annulation of ortho-hydroxychalcones and 2-bromoallyl sulfones
被引:19
|作者:
Thadkapally, Srinivas
[1
]
Kunjachan, Athira C.
[1
]
Menon, Rajeev S.
[1
]
机构:
[1] CSIR Indian Inst Chem Technol, Med Chem & Pharmacol Div, Hyderabad 500007, Andhra Pradesh, India
来源:
关键词:
allenes;
chromenes;
cyclocondenzation;
sulfones;
vinylic substitution;
3-ALKYL ALLENOATES;
EFFICIENT;
CHROMENES;
SALICYLALDEHYDES;
CONSTRUCTION;
2H-CHROMENES;
CYCLIZATION;
METATHESIS;
1,2-DIONES;
DISCOVERY;
D O I:
10.3762/bjoc.12.3
中图分类号:
O62 [有机化学];
学科分类号:
070303 ;
081704 ;
摘要:
The cesium carbonate-mediated reaction of 2-bromoallyl sulfones and ortho-hydroxychalcones furnished 3-arylsulfonyl-4-Hchromene derivatives in 58-67% yield (18 examples). 2-Bromoallyl sulfones functioned as synthetic surrogates for allenyl sulfones in the reaction.
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页码:16 / 21
页数:6
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