Tetrahedron Letters (2020)
Update date:2022-08-03
Topics:
Qin, Chunxiang
Xie, Xin
Wang, Gaonan
Jia, Xueshun
Liu, Yuanhong
The efficient synthesis of phospholes through the reactions of Grignard reagents with in situ-generated 1-bromophospholes has been developed. This method allows the easy substituent variation at the phosphorus atom of the phospholes. The 1,1′-biphospholes can also be conveniently prepared through Zn-promoted debromo-dimerization of 1-bromophospholes. The gold-phosphole complexes of LAuCl were also synthesized, which were found to act as efficient catalysts in gold-catalyzed [3+2] cycloaddition of ynamides with 4,5-dihydro-1,2,4-oxadiazoles.
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