3-Halotetrahydropyran-4-one Derivatives from Homopropargyl Acetal
作者:Jon Erik Aaseng、Naseem Iqbal、Jørn Eivind Tungen、Christian A. Sperger、Anne Fiksdahl
DOI:10.1080/00397911.2014.902961
日期:2014.9.2
gold(I)-catalyzed Petasis–Ferrier rearrangement/cyclization and subsequent electrophilic halogenation was developed. Corresponding hemiacetals were not suitable substrates for the formation of the 3-halo-pyran derivatives. The present transformation is a useful method to readily afford highly substituted 3-halo-tetrahydropyran-4-ones, which are suitable substrates in a variety of reactions in further synthesis