تفاعل #797067

معادلة التفاعل

(R)-4-(6-Hydroxy-quinazolin-2-yl)-4-methyl-oxazolidin-2-one

methylene chloride

N-iodosuccinimide

→

desired product

المردود 84.1%

(R)-4-(6-Hydroxy-5-iodoquinazolin-2-yl)-4-methyloxazolidin-2-one

المردود 84.1%

ظروف التفاعل

المعالجة

1. 1
   أخرىThe reaction mixture was then sonicated for 30 seconds
2. 2
   أخرىall the solvent was removed under vacuum (rotavap)
3. 3
   أخرىThe residue was purified via chromatography (SiO2, 20 gm, 0-100% ethyl acetate/hexanes)

الإجراء التجريبي

(R)-4-(6-Hydroxy-quinazolin-2-yl)-4-methyl-oxazolidin-2-one (330.0 mg, 0.001346 mol) was dissolved in methylene chloride (500 mL, 8 mol), (heterogeneous) followed by N-iodosuccinimide (302.8 mg, 0.001346 mol) at 23° C. The reaction mixture was then sonicated for 30 seconds, and all the solvent was removed under vacuum (rotavap). The residue was purified via chromatography (SiO2, 20 gm, 0-100% ethyl acetate/hexanes) to give 420 mg of desired product (84%). 1H NMR (MeOD) δ: 9.50 (s, 1H), 7.90 (d, J=9.0 Hz, 1H), 7.60 (d, J=9.0 Hz, 1H), 4.99 (d, J=8.8 Hz, 1H), 4.48 (d, J=8.8 Hz, 1H), 1.79 (s, 3H). MS (M+1): 372.00.

المصدر