Halotrifluoromethylation of 1,3-Enynes: Access to Tetrasubstituted Allenes.
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DOI: 10.1021/acs.orglett.1c00449
Abstract: A highly regioselective copper-catalyzed 1,4-chloro- and bromotrifluoromethylation of 1,3-enynes has been presented for the first time, which affords an efficient transformation to access halo- and CF3-containing tetrasubstituted allene derivatives with good to excellent yield. This… read more here.
Keywords: enynes access; tetrasubstituted allenes; halotrifluoromethylation enynes; access tetrasubstituted ... See more keywords
Copper-Catalyzed Regioselective 1,4-Selenosulfonylation of 1,3-Enynes to Access Cyanoalkylsulfonylated Allenes.
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DOI: 10.1021/acs.orglett.1c02665
Abstract: By employing CuOAc as the catalyst, we realize a four-component reaction of 1,3-enynes, diselenides, DABCO·(SO2)2, and cycloketone oxime esters, providing facile access to diverse cyanoalkylsulfonylated allenyl selenides in moderate to good yields. This reaction features… read more here.
Keywords: enynes access; selenosulfonylation enynes; regioselective selenosulfonylation; catalyzed regioselective ... See more keywords