成人免费xx,国产又黄又湿又刺激不卡网站,成人性视频app菠萝网站,色天天天天

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-(CHLOROMETHYL)-5-(4-CHLOROPHENYL)-1,3,4-OXADIAZOLE
24068-15-3

2-(CHLOROMETHYL)-5-(4-CHLOROPHENYL)-1,3,4-OXADIAZOLE synthesis

9synthesis methods
-

Yield:24068-15-3 93%

Reaction Conditions:

with trichlorophosphateReflux;

Steps:

6.1.3. General procedure for the synthesis of 5-aryl-2-(chloromethyl)-1,3,4-oxadiazoles (3a-c)

General procedure: A mixture of aryl acid hydrazide (10 mmol), chloroacetic acid (10 mmol) and POCl3 (7 ml) was heated under reflux for 5-6 h. The excess POCl3 was removed under reduced pressure and the residue was poured onto crushed ice. The resulting precipitate was filtered, washed with saturated sodium bicarbonate solution and then with water, dried and recrystallized from ethanol to obtain 3.

References:

Padmavathi;Dinneswara Reddy;Nagi Reddy;Mahesh [European Journal of Medicinal Chemistry,2011,vol. 46,# 4,p. 1367 - 1373] Location in patent:experimental part

2-(CHLOROMETHYL)-5-(4-CHLOROPHENYL)-1,3,4-OXADIAZOLE Related Search: