Synthesis of hexaaza [1.1](3,6)phenanthrenophane, a new heteromacrocyclic compound was written by Ogawa, Shojiro;Gotoh, Nobuyuki. And the article was included in Seisan Kenkyu in 1972.Quality Control of 2-Bromo-1,10-phenanthroline This article mentions the following:
Orange-yellow title compound (I), m. >500° and having low elec. resistance (â?012Ωcm) which was decreased by â?0% on irradiation, was prepared 2-Chloro-1,10-phenanthroline (II; R = Cl, R1 = H) was treated with Me2SO4 to give the methosulfate (III; R = Cl, X = MeSO4), which was treated with K3[Fe(CN)6]-NaOH to give 94% IV (R = Cl) (IVa). IV (R = H) was treated with PBr3-POBr3 to give 84% II (R = Br, R1 = H), which was converted into the methiodide (III, R = Br, X = I) and treated with K3[Fe(CN)6]NaOH to give 92.5% IV (R = Br), which on treating with PBr3-POBr3 gave II (R = R1 = Br). Similarly IVa and PBr3-POBr3 (or PCl3-POCl3) gave II (R = R1 = Cl) (IIa) (or II; R = Cl, R1 = Br) (IIb). NH3 was passed into a solution of IIa in AcNH2PhOH to give 89% II (R = R1 = NH2) (IIc). IIc, IIb, K2CO3 PhNO2 was heated at 180° to give 55% I. IIc, IIb, K2CO3,CuCl2 and PhNO2 was heated at 180% to give V (M = Cu). Similarly prepared were V (M = Co, Ni). In the experiment, the researchers used many compounds, for example, 2-Bromo-1,10-phenanthroline (cas: 22426-14-8Quality Control of 2-Bromo-1,10-phenanthroline).
2-Bromo-1,10-phenanthroline (cas: 22426-14-8) belongs to organobromine compounds. A variety of minor organobromine compounds are found in nature, but none are biosynthesized or required by mammals. Organobromine compounds have fallen under increased scrutiny for their environmental impact. One prominent application of synthetic organobromine compounds is the use of polybrominated diphenyl ethers as fire-retardants, and in fact fire-retardant manufacture is currently the major industrial use of the element bromine.Quality Control of 2-Bromo-1,10-phenanthroline
Referemce:
Bromide – Wikipedia,
bromide – Wiktionary