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Org Biomol Chem. 2012 Oct 7;10(37):7483-6. doi: 10.1039/c2ob26295a. Epub 2012 Aug 17.

Highly selective synthesis of tetra-substituted furans and cyclopropenes: copper(I)-catalyzed formal cycloadditions of internal aryl alkynes and diazoacetates.

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  • 1Department of Chemistry, Rochester Institute of Technology, Rochester, NY 14623, USA.

Abstract

A convenient Cu(I)-catalyzed cycloaddition of electron rich internal aryl alkynes and diazoacetates was discovered for the chemoselective and regioselective synthesis of tetra-substituted furans and cyclopropenes in moderate isolated yields (18-67%), and alkyne conversion (29-73%).

PMID:
22903589
[PubMed - indexed for MEDLINE]
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