One-pot synthesis of 2,3,4,5,6-pentasubstituted tetrahydropyrans using lithiation–borylation, allylation and Prins cyclisation reactions
摘要:
2,3,4,5,6-Pentasubstituted tetrahydropyrans have been prepared in good yield (42-57%) with excellent dr (>95:5) and er (>95:5) using a one-pot lithiation-borylation, allylation and Prins cyclisation reaction. (C) 2012 Elsevier Ltd. All rights reserved.