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 O-ACETYLSALICYLOYL CHLORIDE
5538-51-2

O-ACETYLSALICYLOYL CHLORIDE synthesis

6synthesis methods
-

Yield:5538-51-2 98.5%

Reaction Conditions:

with oxalyl dichloride;N,N-dimethyl-formamide in dichloromethane at 20; for 3 h;

Steps:

3.2.1. Synthesis of compound 1
To a solution of acetylsalicylic acid (5 g, 27.8 mmol) in 50 mL of anhydrous dichloromethane (DCM), 3.3 mL of oxalyl chloride and a drop of dimethylformamide were added slowly and the mixture was stirred for 3 h at room temperature. Then the mixture was concentrated and 5.4 g of compound 1 was obtained (yield: 98.5%).

References:

Chen, Zhimin;Luo, Yi;Fang, Aiping;Fan, Chen;Zeng, Chenjuan [Turkish Journal of Chemistry,2018,vol. 42,# 3,p. 929 - 939]

FullText

O-ACETYLSALICYLOYL CHLORIDE Related Search: