Home  About us  Contact
 

Prins-Type Cyclization (prins-type + cyclization)

Distribution by Scientific Domains
Chemistry100%

Selected Abstracts

Synthesis of Enantiomerically Pure 2,3,4,6-Tetrasubstituted Tetrahydropyrans by Prins-Type Cyclization of Methyl Ricinoleate and Aldehydes,

EUROPEAN JOURNAL OF ORGANIC CHEMISTRY, Issue 11 2006
Ursula Biermann
Abstract The AlCl3 -catalyzed Prins-type cyclization of methyl ricinoleate (1), an enantiomerically pure renewable compound, with aldehydes such as heptanal (2a), isobutyraldehyde (2b), pivaldehyde (2c) and benzaldehyde (2d) is a simple reaction for the diastereoselective synthesis of enantiomerically pure 2,3,6-trialkyl-substituted 4-chlorotetrahydropyrans. The respective 4-hydroxytetrahydropyrans are obtained e.g. with aldehydes 2a and 2d using montmorillonite KSF/O as the catalyst. (© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2006) [source]

Intermolecular Double Prins-Type Cyclization: A Facile and Efficient Synthesis of 1,6-Dioxecanes

ANGEWANDTE CHEMIE, Issue 34 2009
Punna, Reddy Ullapu
No abstract is available for this article. [source]

ChemInform Abstract: Bismuth Triflate Catalyzed Prins-Type Cyclization in Ionic Liquid: Synthesis of 4-Tetrahydropyranol Derivatives.

CHEMINFORM, Issue 20 2008
M. S. R. Murty
Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a "Full Text" option. The original article is trackable via the "References" option. [source]

Synthesis of Enantiomerically Pure 2,3,4,6-Tetrasubstituted Tetrahydropyrans by Prins-Type Cyclization of Methyl Ricinoleate and Aldehydes,

EUROPEAN JOURNAL OF ORGANIC CHEMISTRY, Issue 11 2006
Ursula Biermann
Abstract The AlCl3 -catalyzed Prins-type cyclization of methyl ricinoleate (1), an enantiomerically pure renewable compound, with aldehydes such as heptanal (2a), isobutyraldehyde (2b), pivaldehyde (2c) and benzaldehyde (2d) is a simple reaction for the diastereoselective synthesis of enantiomerically pure 2,3,6-trialkyl-substituted 4-chlorotetrahydropyrans. The respective 4-hydroxytetrahydropyrans are obtained e.g. with aldehydes 2a and 2d using montmorillonite KSF/O as the catalyst. (© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2006) [source]