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Bismuth triflate catalyzed prins-type cyclization in ionic liquid: Synthesis of 4-tetrahydropyranol derivatives

✍ Scribed by M. S. R. Murty; K. Rajasekhar; V. Harikrishna; J. S. Yadav


Publisher
John Wiley and Sons
Year
2008
Tongue
English
Weight
309 KB
Volume
19
Category
Article
ISSN
1042-7163

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✦ Synopsis


Abstract

The reaction of aldehydes with homoallylic alcohols in the presence of catalytic amount of bismuth triflate in [bmim]PF~6~generates 4‐tetrahydropyranol derivatives in excellent yield and with high diastereoselectivity. Β© 2008 Wiley Periodicals, Inc. Heteroatom Chem 19:104–106, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/hc.20403


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Prins Cyclization in Ionic Liquid Hydrog
✍ Yuichiro Kishi; Shinsuke Inagi; Toshio Fuchigami πŸ“‚ Article πŸ“… 2008 πŸ› John Wiley and Sons 🌐 English βš– 227 KB πŸ‘ 1 views

## Abstract Prins cyclization of homoallylic alcohols with various aldehydes was investigated in ionic liquid hydrogen fluoride (HF) salts, which played roles as a reaction medium, a catalyst, and a fluorine source. The reaction afforded the corresponding 4‐fluorinated tetrahydropyrans in excellent