Yongxian Sun, Gaosheng Yang, Zhuo Chai
Oct 29, 2013
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0
Influential Citations
23
Citations
Journal
Organic & biomolecular chemistry
Abstract
cis-2,3-Disubstituted cyclopropane 1,1-diesters were found to be much more reactive than their corresponding trans-isomers in the AlCl3-promoted [3 + 2]-annulations with isothiocyanates. The reaction with the cis-cyclopropanes proceeded to completion within minutes, providing a variety of densely substituted diastereomerically pure 2-iminodihydrothiophenes in moderate to excellent yields.