تفاعل #216988

معادلة التفاعل

( 2 )

3-Aminobenzenepropanoic acid, ethyl ester

diiodomethane

isoamyl nitrite

→

title compound

المردود 42.0%

3-Iodobenzenepropanoic acid, ethyl ester

المردود 42.0%

المذيبات

Ethyl ether

ظروف التفاعل

المعالجة

1. 1
   درجة الحرارةheated to 80° C. for 2 h
2. 2
   غسيلthe organic layer was washed with 1N hydrochloric acid (70 mL×2), water (70 mL), saturated sodium bicarbonate (70 mL×2), 10% sodium bisulfite solution (30 mL)
3. 3
   تجفيفdried over magnesium sulfate
4. 4
   أخرىPurification
5. 5
   غسيلeluted with 7% ethyl acetate in hexane
6. 6
   أخرىevaporated

الإجراء التجريبي

To a solution of Part (2) compound (7.2 g, 32 mmol) in diiodomethane (10.3 mL, 128 mmol) under argon at RT was added isoamyl nitrite (6.5 mL, 64 mmol) over 10 min. The brownish solution was stirred at RT for 40 min and then heated to 80° C. for 2 h. Ethyl ether (300 mL) was added to the reaction and the organic layer was washed with 1N hydrochloric acid (70 mL×2), water (70 mL), saturated sodium bicarbonate (70 mL×2), 10% sodium bisulfite solution (30 mL) and dried over magnesium sulfate. Purification was performed by flash chromatography on 800 g silica gel, loaded and eluted with 7% ethyl acetate in hexane. Pure fractions were combined and evaporated to give the title compound (4.1 g, 42%) as a colorless oil.

المصدر