Stereospecific synthesis of 5,6-dihydro-2H-pyran system. High-pressure cycloaddition of 1:2,3:4-di-0-isopropylidene- α-D-galactopyranose-6-ulose to 1-methoxybuta-1,3-diene
作者:Janusz Jurczak、Tomasz Bauer、Sławomir Jarosz
DOI:10.1016/s0040-4039(01)81526-4
日期:——
The high-pressurecycloaddition of 1:2,3:4-di-0-isopropylidene- α-D-galactopyranos-6-ulose (3) to 1-methoxybuta-1,3-diene (1) afforded diastereoisomerically pure cycloadduct 4 whose absolute configuration was determined.