Gotsko, Maxim D. published the artcileTopochemical mechanoactivated phosphonylethynylation of pyrroles with chloroethynylphosphonates on solid Al2O3 or K2CO3 media, Recommanded Product: Diethyltrichloromethylphosphonate, the publication is Tetrahedron Letters (2015), 56(32), 4657-4660, database is CAplus.
Dialkyl 2-(1H-pyrrol-2-yl)ethynylphosphonates have been synthesized from their resp. pyrroles by a transition metal-free, topochem. mechanoactivated phosphonylethynylation (room temperature, 24-48 h) using chloroethynylphosphonates on solid Al2O3 (40-58% yield) or K2CO3 (38-43% yield).
Tetrahedron Letters published new progress about 866-23-9. 866-23-9 belongs to chlorides-buliding-blocks, auxiliary class Aliphatic Chain, name is Diethyltrichloromethylphosphonate, and the molecular formula is C5H10Cl3O3P, Recommanded Product: Diethyltrichloromethylphosphonate.
Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics