Highly stereocontrolled synthesis of fluorinated 2,6-trans dihydropyrans via Prins cyclization

被引:25
作者
Luo, Hai-Qing [1 ]
Hu, Xu-Hong [1 ]
Loh, Teck-Peng [1 ]
机构
[1] Nanyang Technol Univ, Sch Phys & Math Sci, Div Chem & Biol Chem, Singapore 637371, Singapore
关键词
Fluorine chemistry; trans-Dihydropyrans; Prins cyclization; Allenic alcohols; BF3 center dot Et2O; HOMOALLYLIC ALCOHOLS; TETRAHYDROPYRANS;
D O I
10.1016/j.tetlet.2009.12.068
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
A highly efficient method for the synthesis of fluorinated 2,6-trans dihydropyrans via BF3 center dot Et2O-promoted Prins cyclization of allenic alcohols and aldehydes is developed. Various 2,6-trans fluorodihydropyrans are obtained in moderate to good yields with excellent diastereoselectivities. (C) 2010 Elsevier Ltd. All rights reserved.
引用
收藏
页码:1041 / 1043
页数:3
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