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

関与物質

反応条件

反応手順

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 and 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 had the formula: ##STR75##

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