Hydrochloric Acid → 3-Bromoacetyloxymethyl-5,5-diphenyl-2,4-imidazolidinedione

HRID 1638877Notes

Reaction equation

[C:1]1([C:7]2([C:16]3[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=3)[NH:11][C:10](=[O:12])[N:9]([CH2:13][OH:14])[C:8]2=[O:15])[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.[Br:22][CH2:23][C:24](Cl)=[O:25].Cl>C(OCC)C>[Br:22][CH2:23][C:24]([O:14][CH2:13][N:9]1[C:8](=[O:15])[C:7]([C:1]2[CH:2]=[CH:3][CH:4]=[CH:5][CH:6]=2)([C:16]2[CH:17]=[CH:18][CH:19]=[CH:20][CH:21]=2)[NH:11][C:10]1=[O:12])=[O:25]

Participants

Conditions

Temperature: 0 °C

Procedure

5,5-Diphenyl-3-hydroxymethyl-2,4-imidazolidinedione (2 g, 0.0071 mol) was dissolved in bromoacetylchloride (15 g, 8 ml, 0.096 mol) by heating in an oil bath (70°-80° C. bath temperature) for about 15 minutes, until the formation of HCl ceased. The mixture was cooled and 30 ml of ethyl ether were added. White crystals formed. The mixture was cooled to 0° C., then the crystals were removed by filtration ad dried over P2O5. Yield: 2.15 g (75%), m.p. 179°-183° C. Anal. calc. for C18H15N2O4Br: C, 53.61; H, 3.75; N, 6.95; Br, 19.82. Found: C, 53.60; H, 3.79; N, 6.92; Br, 19.90. The product has the formula: ##STR1536##

Workup

temperatureby heating in an oil bath (70°-80° C. bath temperature) for about 15 minutes
temperatureThe mixture was cooled
customWhite crystals formed
customthe crystals were removed by filtration ad
dry with materialdried over P2O5

Sources & evidence

ORD record: ord-fe179d08790c44149addaf263d6ad7c9
Source dataset: uspto-grants-1989_11
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US04880921

Reaction notes

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