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 6-BROMO-2(1H)-QUINOLONE
1810-66-8

6-BROMO-2(1H)-QUINOLONE synthesis

13synthesis methods
-

Yield: 97%

Reaction Conditions:

with sulfuric acid at 100;

Steps:

6.b
6-Bromo-2(1 /-/)-quinolinone. The solution of the compound from Example 6 a) (6.0 g, 22.2 mmol) in concentrated H2SO4 (30 mL) was heated in 100 0C EPO overnight. The mixture was cooled to ambient temperature and quenched with ice water. The precipitate was filtered, washed with water and dried in vacuo to afford the title compound as a white solid (4.8 g, 97%). MS(ES+) m/e 225 [M+H]+.

References:

SMITHKLINE BEECHAM CORPORATION WO2006/132739, 2006, A2 Location in patent:Page/Page column 35-36

6-BROMO-2(1H)-QUINOLONE Related Search: