期刊
TETRAHEDRON
卷 66, 期 42, 页码 8242-8246出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tet.2010.08.052
关键词
N '-(2-Alkynylbenzylidene)hydrazide; Bromine; 6-BromoH-pyrazolo[5,1-a]isoquinoline; 6-Bromo-1,2,3,10b-tetrahydropyrazolo[5,1-a]isoquinoline; alpha,beta-unsaturated carbonyl compound
资金
- National Natural Science Foundation of China [20972030]
- Science & Technology Commission of Shanghai Municipality [09JC1404902]
Different outcomes were generated under different conditions for the three-component reaction of N'-(2-alkynylbenzylidene)hydrazide, alpha,beta-unsaturated carbonyl compound, with bromine. 6-BromoH-pyrazolo[5,1-a]isoquinoline was obtained when the reaction was performed in NMP at 70 degrees C in the presence of DABCO as base, while 6-bromo-1,2,3,10b-tetrahydropyrazolo[5,1-a]isoquinoline was afforded when the reaction occurred in DMAc at 10 degrees C in the presence of K3PO4 as the base. (C) 2010 Elsevier Ltd. All rights reserved.
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