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-(4-BROMO-PHENYL)-5-CHLOROMETHYL-[1,3,4]OXADIAZOLE
568544-04-7

2-(4-BROMO-PHENYL)-5-CHLOROMETHYL-[1,3,4]OXADIAZOLE synthesis

6synthesis methods
-

Yield:568544-04-7 80.2%

Reaction Conditions:

with trichlorophosphate for 6 h;Reflux;

Steps:

2. General experimental procedure for synthesis of compound 7

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

References:

Zhang, Kai;Wang, Peng;Xuan, Li-Na;Fu, Xiao-Yun;Jing, Fen;Li, Sha;Liu, Yu-Ming;Chen, Bao-Quan [Bioorganic and Medicinal Chemistry Letters,2014,vol. 24,# 22,p. 5154 - 5156] Location in patent:supporting information