1,1,3,3-Tetraisopropyldisiloxane-1,3-diyl (TIPS) migration facilitates one-pot formation of enantiomerically pure methyl 2,3-epoxy-D-xylonate
作者:Yongfeng Wang、George W.J. Fleet、Linxiang Zhao
DOI:10.1016/s0008-6215(98)00019-6
日期:1998.2
The reaction of 3,5-O-(1,1,3,3-tetraisopropyldisiloxane- 1,3-diyl)-2-O-trifluoromethanesulfonyl- D-lyxono-1,4-lactone with K2CO3 in dry methanol at -10 degrees C gave enantiomerically pure methyl 2,3-anhydro-4,5-O-(1,1,3,3-tetraisopropyldisiloxane-1,3-diyl)-D-xylonate as the single product, resulting from migration of the TIPS group in an alkoxide intermediate. (C) 1998 Elsevier Science Ltd. All rights reserved.