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 4-(Chloromethyl)tolunitrile
874-86-2

4-(Chloromethyl)tolunitrile synthesis

10synthesis methods
-

Yield:874-86-2 96.2%

Reaction Conditions:

with formic acid;5,10,15,20‐tetrakis‐(4‐sulfonatophenyl)‐porphyrin‐iron(III) chloride;sodium nitrite in acetonitrile at 70; for 4.5 h;

Steps:

14 Synthesis of chloromethyl benzonitrile

To the reaction tube were added 0.4 mmol of p-chloromethylstyrene, 2 mmol of sodium nitrite,5 mg of metallic iron (III) porphyrin, 4.5 ml of acetonitrile solvent, heated and stirred at 70 ° C in an air atmosphere,0.5 ml of formic acid was added dropwise within the first 0.5 hours, and after 4 hours of reaction, heating and stirring were stopped, and the mixture was cooled to room temperature,The crude product was obtained by rotary evaporator, and then purified by column chromatography to give the desired product,The column eluant used was a mixed solvent of petroleum ether and ethyl acetate.The p-chloromethylbenzonitrile structure is shown below:The compound was a white solid with a yield of 96.2% and its nuclear magnetic data was as follows

References:

CN107573259,2018,A Location in patent:Paragraph 0133-0137

4-(Chloromethyl)tolunitrile Related Search: