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 Magnolol
528-43-8

Magnolol synthesis

7synthesis methods
-

Yield:528-43-8 81%

Reaction Conditions:

with antimonypentachloride in dichloromethane at -78;

Steps:

2 Example 2

Weigh 2:2'-bisallyloxy-1,1'-biphenyl in a ratio of 1:4, Dichloromethane is put into the reaction vessel, Stir until the components are fully dissolved, Cool down to -78 °C, Incorporation of antimony pentachloride having a mass ratio of 2:2'-bisallyloxy-1,1'-biphenyl to 1:1.5, React at low temperature for 5~6 hours, The reaction is completed, Pour the reaction solution into cold water. Crystallization filtration, low temperature drying to obtain magnolol; yield of magnolol product was 81%.

References:

CN109053387,2018,A Location in patent:Paragraph 0020; 0022

Magnolol Related Search: