Synthesis of Enantiomerically Pure Highly Functionalized Furanoid Glycal and 2,5-Dihydrofuran Building Blocks
作者:Pinki Pal、Brijesh Kumar、Arun K. Shaw
DOI:10.1002/ejoc.200801226
日期:2009.5
Differently protected enantiomerically pure furanoid glycals (5a–d) and highly functionalized 2,5-dihydrofurans (6a–b) were synthesized from their respective 2,3,4-trisubstituted tetrahydrofurans. These furanoid glycals were identified as1,4-anhydro-2-deoxy-5,6-O-isopropylidene-3-O-benzyl-L-arabino-hex-1-enitol, 1,4-anhydro-2-deoxy-5,6-O-isopropylidene-3-O-benzyl-L-ribo-hex-1-enitol, 1,4-anhydro-2-deoxy-5
从各自的 2,3,4-三取代四氢呋喃合成了不同保护的对映异构纯呋喃糖 (5a-d) 和高度官能化的 2,5-二氢呋喃 (6a-b)。这些呋喃糖被鉴定为 1,4-anhydro-2-deoxy-5,6-O-isopropylidene-3-O-benzyl-L-arabino-hex-1-enitol, 1,4-anhydro-2-deoxy-5 ,6-O-isopropylidene-3-O-benzyl-L-ribo-hex-1-enitol, 1,4-anhydro-2-deoxy-5,6-O-isopropylidene-3-O-benzyl-D-ribo -hex-1-enitol 和 1,4-anhydro-2-deoxy-5,6-O-isopropylidene-3-O-benzyl-D-arabino-hex-1-enitol。(© Wiley-VCH Verlag GmbH