Welcome to chemicalbook!
Chinese English Japanese Germany Korea
400-158-6606
Try our best to find the right business for you.
Do not miss inquiry messages Please log in to view all inquiry messages.

Welcome back!

ChemicalBook CAS DataBase List 1H-Imidazole-5-propanol,1-methyl-(9CI)

1H-Imidazole-5-propanol,1-methyl-(9CI) synthesis

2synthesis methods
1H-Imidazole-5-propanoic acid, 1-methyl-, ethyl ester

615578-68-2
0 suppliers
inquiry

1H-Imidazole-5-propanol,1-methyl-(9CI)

615578-60-4
10 suppliers
inquiry

-

Yield:-

Reaction Conditions:

Stage #1:3-(3-methylimidazol-4-yl)propionic acid ethyl ester with lithium aluminium tetrahydride in tetrahydrofuran;diethyl ether at 0 - 21; for 2 h;
Stage #2: with sodium hydroxide;water in tetrahydrofuran;diethyl ether at 0; for 0.33 h;

Steps:


1M lithium aluminium hydride in diethyl ether (5. 75ml) in dry tetrahydrofuran (lOml) was stirred in an ice bath under nitrogen and a solution of intermediate A17 (1.047g) in dry THF (10ml) added dropwise. The resultant mixture was allowed to warm to 21 °C over 2h. The mixture was cooled in an ice bath and carefully treated (CARE effervescence) with water (0. 43ml), 1M sodium hydroxide (0. 29ml) and further water (0. 66ml). The mixture was stirred for 0.33h, filtered and the solid washed with further THF. The combined filtrates were evaporated under reduced pressure to give the desired product (0. 743g). IH- NMR (CDC13) 8 1.8-2. 0 (2H, m), 2.65 (2H, t), 3.56 (3H, s), 3.73 (2H, t), 6.78 (1H, s), 7.37 (1H, s).

References:

GLAXO GROUP LIMITED WO2003/87088, 2003, A2 Location in patent:Page/Page column 25