Unexpected transformation of methyl 3,6-anhydro-2,7-dideoxy-7-iodo-4,5-O-isopropylidene-D-allo-heptonate in the dehydroiodination reaction with 1,8-diazabicyclo[5.4.0]undec-7-ene
作者:N. A. Ivanova、Z. R. Valiullina、O. V. Shitikova、M. S. Miftakhov
DOI:10.1007/s11172-006-0179-1
日期:2005.11
The reaction of methyl 3,6-anhydro-2,7-dideoxy-7-iodo-4,5-O-isopropylidene-D-allo-heptonate with 1,8-diazabicyclo[5.4.0]undec-7-ene affords methyl 3,6-anhydro-2,7-dideoxy-4,5-O-isopropylidene-D-ribo-hept-6-enonate, which undergoes the previously unknown rearrangement into a 2,2-dimethyl-1,3-dioxole derivative.
3,6-脱水-2,7-二脱氧-7-碘-4,5-O-异亚丙基-D-别庚酸甲酯与1,8-二氮杂双环[5.4.0]十一碳-7-烯的反应生成3,6-脱水-2,7-二脱氧-4,5-O-异亚丙基-D-核糖-庚-6-烯酸甲酯,后者经历先前未知的重排反应,生成2,2-二甲基-1,3-二氧杂环戊烯衍生物。