1383546-05-1Relevant articles and documents
Lewis acid-catalyzed intramolecular [3+2] cycloaddition of cyclopropane 1,1-diesters with alkynes for the synthesis of cyclopenta[c]chromene skeletons
Xia, Xiao-Feng,Song, Xian-Rong,Liu, Xue-Yuan,Liang, Yong-Min
, p. 1538 - 1541 (2012/08/08)
An efficient method to construct cyclopenta[c]chromene skeletons by Lewis acid-catalyzed intramolecular [3+2] cycloaddition of cyclopropane 1,1-diesters with alkynes is presented. Two new fused cycles can be formed in one step in moderate to excellent yie