Hydrogen Bromide → HCID 22290102, compound

Participants

Reaction Steps

Bis(4-methoxyphenyl)(1-naphthyl)phosphine oxide (352 g, 0.906 mol), hydrobromic acid (1474 g, 48%, 8.74 mol), and potassium bromide (45 g, 0.378 mol) were heated at 110° C. for 96 h. The flask was fitted with a sodium sulfite scrubber for containment of methyl bromide. The mixture was worked up to give the product as a brown solid (267 g, 82% yield). 31P NMR (d6-DMSO): δ 35.19 (s, 5.2%), 30.96 (s, 74.4%), 27.16 (s, 19.3%). m.p. (DSC): 114.7° C.

Provenance & Evidence