New synthetic reactions. Synthesis of cyclobutanes, cyclobutenes, and cyclobutanones. Applications in geminal alkylation
作者:Barry M. Trost、Donald E. Keeley、Henry C. Arndt、Mitchell J. Bogdanowicz
DOI:10.1021/ja00451a040
日期:1977.4
Direct Syntheses of Spiro- and Fused-Hydrofurans by a Tunable Tandem Semipinacol Rearrangement/Oxa-Michael Addition Protocol
作者:Bao-Sheng Li、Wen-Xing Liu、Qing-Wei Zhang、Shao-Hua Wang、Fu-Min Zhang、Shu-Yu Zhang、Yong-Qiang Tu、Xiao-Ping Cao
DOI:10.1002/chem.201300205
日期:2013.4.22
one‐pot reaction has been developed involving a tandemsemipinacolrearrangement/oxa‐Michael addition sequence in which the in situ generated ketol diene intermediate can be transformed specifically to either the spiro‐ or fused‐dihydrofuran products (see scheme). This one‐pot tandem reaction represents a general synthetic methodology for the syntheses of the two different kinds of furan derivatives