تفاعل #45321

معادلة التفاعل

EtOAc hexane

methyl [(4-amino-5′-isopropyl-2′-methoxybiphenyl-2-yl)methyl][3,5-bis(trifluoromethyl)benzyl]carbamate

n-amyl nitrite

iodine

→

title compound

Methyl [3,5-bis(trifluoromethyl)benzyl][(4-iodo-5′-isopropyl-2′-methoxybiphenyl-2-yl)methyl]carbamate

المذيبات

methylene chloride

chloroform

ظروف التفاعل

المعالجة

1. 1
   درجة الحرارةThe mixture was heated to and
2. 2
   درجة الحرارةmaintained
3. 3
   درجة الحرارةat reflux for 2 h
4. 4
   أخرىcompletion of the reaction
5. 5
   غسيلwashed with saturated sodium thiosulfate solution, brine
6. 6
   تجفيفThe light yellow solution was dried over sodium sulfate

الإجراء التجريبي

To a solution of the methyl [(4-amino-5′-isopropyl-2′-methoxybiphenyl-2-yl)methyl][3,5-bis(trifluoromethyl)benzyl]carbamate from Example 9 (0.31 g, 0.56 mmol) in chloroform (10 ml), n-amyl nitrite (0.11 ml, 0.84 mmol) and iodine (0.28 g, 1.1 mmol) were added. The mixture was heated to and maintained at reflux for 2 h. TLC analysis (5:95 EtOAc/hexane) showed completion of the reaction. The mixture was diluted with methylene chloride (20 ml) and washed with saturated sodium thiosulfate solution, brine. The light yellow solution was dried over sodium sulfate. The title compound was obtained by flash column chromatography using 5:95 EtOAc/hexane as the eluant. 1H NMR (CDCl3, 500 MHz) δ 7.74 (s, 1H), 7.67 (dd, J=8.0, 2.0 Hz, 1H), 7.47 (m, 1H), 7.31 (dd, J=8.0, 2.0 Hz, 1H), 7.21 (d, J=8.0 Hz, 1H), 7.16 (d, J=8.5 Hz, 1H), 6.95 (d, J=8.0 Hz, 1H), 6.91 (dd, J=4.0, 2.5 Hz, 1H), 6.87 (d, J=8.5 Hz, 1), 4.20-4.48 (m, 4H), 3.78 (s, 3H), 3.70 (s, 3H), 2.92 (m, 1H), 1.23 (s, 3H), 1.21 (s, 3H). LC-MS (M+1) 666.0 (4.74 min).

المصدر