期刊
TETRAHEDRON
卷 68, 期 39, 页码 8367-8370出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tet.2012.06.107
关键词
Cationic bromonium; N-bromosuccinimide; Triphenyl phosphate; Nazarov cyclization; Dihydropyran
资金
- National Nature Science Foundation of China [20672035]
- Fundamental Research Funds for the Central Universities
- Opening Foundation of Zhejiang Provincial Top Key Discipline
A general, catalytic method for Nazarov cyclization of dihydropyran derivatives has been developed. Cationic bromonium complex: NBS/P(OPh)(3) was identified as an efficient catalyst for the synthesis of a number of different cyclopentenones in high yields with an excellent level of diastereocontrol. (C) 2012 Elsevier Ltd. All rights reserved.
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