Synthesis of tetrahydropyran derivatives via a novel indium trichloride mediated cross-cyclization between epoxides and homoallyl alcohols
摘要:
A cross-cyclization between epoxides and homoallyl alcohols catalyzed by indium chloride generates tetrahydropyran derivatives in high yields. (C) 2001 Elsevier Science Ltd. All rights reserved.
An efficient synthesis of dihydro- and tetrahydropyrans via oxonium–ene cyclization reaction
作者:Somasekhar Bondalapati、Udagandla C. Reddy、Pipas Saha、Anil K. Saikia
DOI:10.1039/c1ob00033k
日期:——
An efficient method has been developed for the synthesis of 2,3-dihydropyrans and 4-methylenetetrahydropyrans from aldehydes and substituted homoallyl alcohols in benzene mediated by borontrifluoride etherate in good yields. The reaction proceeds viaoxonium–ene reaction.
The present invention refers to dihydropyran derivatives, and to a process of making the same. The invention further refers to perfume compositions and fragranced articles comprising them.
The present invention refers to dihydropyran derivatives, and to a process of making the same. The invention further refers to perfume compositions and fragranced articles comprising them.