反应详情

To a solution of 3-(5-Methoxy-1H-indol-3-yl)-acrylic acid methyl ester 3 (3 g; 0.013 mol) in tetrahydrofuran (THF, 70 mL) was added palladium on activated carbon (10%; 0.72 g ). The solution was deoxygenated under vacuum and hydrogen was introduced to the reaction flask from a balloon filled with hydrogen. The process was repeated three times and the reaction mixture was stirred for 16 h at room temperature. The mixture was filtered through celite and the filtrate was evaporated under reduced pressure to yield ester 4 as a while solid (2.78 g; 92% yield; M+1=234.0).

1. customThe solution was deoxygenated under vacuum and hydrogen
2. additionwas introduced to the reaction flask from a balloon
3. additionfilled with hydrogen
4. filtrationThe mixture was filtered through celite
5. customthe filtrate was evaporated under reduced pressure