天堂网亚洲,天天操天天搞,91视频高清,菠萝蜜视频在线观看入口,美女视频性感美女视频,95丝袜美女视频国产,超高清美女视频图片

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 3,5'-Di-O-acetyl-2'-deoxyuridine
13030-62-1

3,5'-Di-O-acetyl-2'-deoxyuridine synthesis

8synthesis methods
-

Yield:13030-62-1 96%

Reaction Conditions:

with O-(3-sulfopropyl)-functionalized nano γ-Al2O3 in neat (no solvent) at 20 - 50; for 0.5 h;

Steps:

1.4 Typical procedure for the preparation of 2c

General procedure: To a stirred suspension of d-glucose (1 mmol) in acetic anhydride (5.1 mmol) at room temperature was added sulfonic acid functionalized nano γ-Al2O3 (50 mg). The mixture was stirred at 50 °C for 40 min. After completion of the reaction (TLC), the mixture was put into diethyl ether (50 mL) and microporous filtration (microporous membrane: PVDF, pore sizes: 0.1 μm). The solvents were removed under reduced pressure and the crude product was passed through a short pad of silica to give pure acetylated product 2c. The catalyst was washed with absolute EtOH, dried and re-used for a consecutive run under the same reaction conditions.

References:

Wu, Liqiang;Yin, Zhikui [Carbohydrate Research,2013,vol. 365,p. 14 - 19]

3,5'-Di-O-acetyl-2'-deoxyuridine Related Search: