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 2-CHLORO-4-METHYLBENZONITRILE
7390-42-3

2-CHLORO-4-METHYLBENZONITRILE synthesis

2synthesis methods
-

Yield:7390-42-3 97%

Reaction Conditions:

with Lawessons reagent in toluene at 20; for 0.15 h;

Steps:

33.1 Step 1

To a mixture of 527a (7 g, 0.55 mol) in toluene (100 mL) was added Lawesson Reagent (22.3 g, 55 mmol). The mixture was allowed to stir at room temperature for about 15 hours. The reaction mixture was concentrated in vacuo, and the resulting residue was purified using flash column chromatography on silica gel, eluting with petroleum ether: ethyl acetate (15/1-5/1) to provide 527b (8 g, 97 %)

References:

WO2014/110705,2014,A1 Location in patent:Page/Page column 144