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 1-DECYL-2-METHYLIMIDAZOLE
42032-30-4

1-DECYL-2-METHYLIMIDAZOLE synthesis

2synthesis methods
-

Yield:42032-30-4 75%

Reaction Conditions:

with sodium hydroxide;tetrabutylammomium bromide in toluene;

Steps:

I.a Example I

(a) preparation of 1-Decyl-2-methylimidazole Ref: Henri J.-M. Dou and Jacques Metzger, Bull. Soc. Chim. Fr. (1976) 1861 A mixture of 2-methylimidazole (12.3 g; 0.15 mol), 1-bromodecane (33.15 g; 0.15 mol), sodium hydroxide solution (69.5 ml. of 11.5M solution; 0.8 mol) and tetra-n-butylammonium bromide (1.95 g; 0.006 mol) in toluene (300 ml) was stirred rapidly for 3 hours at 65° C. After cooling to between 20° and 25° C., the toluene layer was separated and extracted with 5M HCl solution (150 ml). The extract neutralised with sodium bicarbonate and extracted many times into hexane. The hexane solution was dried over magnesium sulphate and evaporated to dryness to give an oil (25 g; 75% theory).

References:

US5620595,1997,A

1-DECYL-2-METHYLIMIDAZOLE Related Search: