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EFFICIENT ONE-POT SYNTHESIS OF BENZO[e]PYRAZOLO-[1,5-c][1,3]THIAZINE DERIVATIVES UNDER COPPER-CATALYZED CONDITIONS
被引:6
作者:
Jie, Jiyang
[1
]
Li, Haoyi
[1
]
Piao, Meihui
[1
]
Yang, Xiaobo
[1
]
机构:
[1] Shenyang Normal Univ, Coll Chem & Chem Engn, Shenyang 110034, Liaoning, Peoples R China
基金:
中国国家自然科学基金;
关键词:
Copper Catalyst;
One-Pot Reaction;
S-Arylation Reaction;
Pyrazole;
Thiazine;
DIRECT IMINE ACYLATION;
HETEROCYCLIC SCAFFOLDS;
ACID-DERIVATIVES;
CYCLIZATION;
SCOPE;
D O I:
10.3987/COM-16-13477
中图分类号:
O62 [有机化学];
学科分类号:
070303 ;
081704 ;
摘要:
An efficient method has been developed for the synthesis of benzo[e]pyrazolo[1,5-c][1,3]thiazines via one-pot two-step reactions of readily available substituted 1-(2-halopheny1)-3-akylprop-2-yn-1-ones, hydrazine hydrochloride and beta-oxodithioesters under mild conditions, and the corresponding benzo[e]pyrazolo[1,5-c][1,3]thiazines were obtained in good to excellent yields. The novel method affords a new strategy for the construction of diverse and useful poly N, S-heterocyclic compounds.
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页码:1215 / 1223
页数:9
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