Highly reactive rhodium(II) N-trifluoromethylsulfonyl azavinyl carbenes are formed in situ from NH-1,2,3-triazoles, triflic anhydride, and rhodium carboxylates. They rapidly and selectively react with olefins, providing cyclopropane carboxaldehydes and 2,3-dihydropyrroles in generally excellent yields and high enantio- and diastereoselectivity.
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|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2834274 | PMC |
| http://dx.doi.org/10.1021/ja910187s | DOI Listing |
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