Journal
HETEROCYCLES
Volume 92, Issue 7, Pages 1215-1223Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.3987/COM-16-13477
Keywords
Copper Catalyst; One-Pot Reaction; S-Arylation Reaction; Pyrazole; Thiazine
Categories
Funding
- National Natural Science Foundation of China [21402126]
- Natural Science Foundation of Liaoning Province [20141090]
- Program for Excellent Talents in University of Liaoning Province [LJQ2014121]
- Doctoral Fund of Shenyang Normal University
- Director Fund of Ecological and Environmental Research Centre of Shenyang Normal University [EERC-G-201403]
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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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