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
010-86108875
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-Chloro-3-hydroxy-2-nitropyridine
887471-39-8

6-Chloro-3-hydroxy-2-nitropyridine synthesis

1synthesis methods
41288-96-4 Synthesis
2-Chloro-5-hydroxypyridine

41288-96-4
340 suppliers
$8.00/1g

-

Yield: 78%

Reaction Conditions:

with sulfuric acid;potassium nitrate at 0 - 20; for 16 h;

Steps:

15.1 Step 1: Preparation of 6-chloro-2-nitropyridin-3-ol
Potassium nitrate (14g, 138.4mmol) was added in several portions to a mixture of 2- chloropyridin-5-ol (lOg, 77.2mmol) in concentrated sulphuric acid (50ml) at 0°C and further stirred at room temperature for 16h. After the completion of reaction, reaction mixture was poured over crushed ice and the solid was filtered and dried to get the tittle compound (10.5g, 78%). LCMS: m/z = 173.3 (M+1) +.

References:

AURIGENE DISCOVERY TECHNOLOGIES LIMITED;GUMMADI, Venkateshwar Rao;SAMAJDAR, Susanta;MUKHERJEE, Subhendu;BOCK, Mark Gary WO2017/9806, 2017, A1 Location in patent:Page/Page column 76

6-Chloro-3-hydroxy-2-nitropyridine Related Search: