Holy, A. published the artcilePhosphorylation of nucleosides with trichloromethylphosphonic acid derivatives, HPLC of Formula: 866-23-9, the publication is Tetrahedron Letters (1972), 157-8, database is CAplus.
Ribonucleosides were phosphorylated selectively, to give the 2′-phosphate derivative, with Et trichloromethylphosphonate (I) when the ribonucleoside contained the cis-2′,3′-diol group. Treatment of uridine (over-night) with I in HCONMe2 containing Et3N gave 67% of the corresponding uridine nucleotide. Similarly prepared were the nucleotides of cytidine, adenosine, and 6-azauridine in 23, 45, and 3% yield, resp. Thymidine and 2′,3′-O-isopropylideneuridine did not give the nucleotides as they could not form a cyclic intermediate. -(α-L-Lyxofuranosyl)adenine, in which two cyclic intermediates were conformationally allowed, gave 95% of a nucleotide mixture containing 2- and 3-isomeric phosphates and the 3,5-cyclic phosphate in 23, 37, and 35% yield, resp.
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, HPLC of Formula: 866-23-9.
Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics