Gajda, Tadeusz published the artcilePreparation of diethyl 1-bromoalkylphosphonates, HPLC of Formula: 66197-72-6, the publication is Phosphorus, Sulfur and Silicon and the Related Elements (1990), 53(1-4), 327-31, database is CAplus.
RCHBrP(O)(OEt)2 (R = H, Me, Et, Pr, Ph) were prepared by treating RCH(OH)P(O)(OEt)2 with Ph3P and CBr4 in refluxing C6H6, or with Ph3PBr2 and pyridine in MeCN at room temperature Yields of 22-67% were obtained.
Phosphorus, Sulfur and Silicon and the Related Elements published new progress about 66197-72-6. 66197-72-6 belongs to bromides-buliding-blocks, auxiliary class Aliphatic Chain, name is Diethyl (bromomethyl)phosphonate, and the molecular formula is C5H12BrO3P, HPLC of Formula: 66197-72-6.
Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary