Topochemical mechanoactivated phosphonylethynylation of pyrroles with chloroethynylphosphonates on solid Al2O3 or K2CO3 media
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Add time:09/28/2019 Source:sciencedirect.com
Dialkyl 2-(1H-pyrrol-2-yl)ethynylphosphonates have been synthesized from their respective pyrroles by a transition metal-free, topochemical mechanoactivated phosphonylethynylation (room temperature, 24–48 h) using chloroethynylphosphonates on solid Al2O3 (40–58% yield) or K2CO3 (38–43% yield).
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