午夜插插,噜噜噜影院,啪啪伊人网,欧美熟夫,景甜吻戏视频,男人强操性感蕾丝美女视频在线网站,日本美女跳舞视频

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: