Bradley, Mildred J. published the artcileThe chemistry of Borazine. II. The synthesis of N,N’,N”-trimethyl-B,B’,B”-trialkoxyborazines and N,N’,N”-trimethyl-B,B’,B”-triphenoxyborazine, COA of Formula: C5H12BrO3P, the publication is Journal of the American Chemical Society (1959), 2635-8, database is CAplus.
cf. C.A. 53, 3240a. When alkali alkoxides or phenoxides reacted with N,N’,N”-trimethyl-B,B’,B”-trichloroborazine (I) in dry benzene, the Cl on the B were replaced by alkoxy or phenoxy groups. Thus, 0.45 mole I in 100 ml. benzene was treated during 2 hrs. with 0.15 mole Na alkoxide, the mixture refluxed 8-12 hrs., stirred over-night, concentrated in vacuo, and the residue distilled The best yields were obtained at exact stoichiometry. The products reacted immediately with either water or alcs. The following were prepared: N,N’,N”-trimethyl-B,B’,B”-trimethoxyborazine, b0.07 62-65°, n23D 1.4610; N,N’,N”-trimethyl-B,B’,B”-triethoxyborazine, b0.10 79.5-80.5%, n22.5D 1.4540; N,N’,N”-trimethyl-B,B’,B”-triisopropoxyborazine, b0.10 85-87°, n23D 1.4460; N,N’,N”-trimethyl-B,B’,B”-tripropoxyborazine, b0.15 101-3°, n22D 1.4561; N,N’,N”-trimethyl-B,B’,B”-tributoxyborazine, b0.30 130-4°, n23D 1.4572; N,N’,-N”-trimethyl-B,B’,B”-tri-tert-butoxyborazine, b0.52 120-5°, m. 84-7°; N,N’,N”-trimethyl-B,B’,B”-triphenoxyborazine, b0.07 185-7°, m. 81-4°.
Journal of the American Chemical Society 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, COA of Formula: C5H12BrO3P.
Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary