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 2,5-Dimethoxyacetoacetanilide
6375-27-5

2,5-Dimethoxyacetoacetanilide synthesis

6synthesis methods
-

Yield: 93%

Reaction Conditions:

in tolueneDean-Stark;Reflux;

Steps:

7 Synthesis of compound 7-b
Compound 7-a (2,5-dimethoxyaniline, 10.0 g, 65.28 mmol) was dissolved in toluene (130 ml) and then ethyl acetoacetate (8.3 ml, 65.28 mmol) was added thereto. A Dean-Stark apparatus was installed, followed by refluxing overnight. Toluene was evaporated after terminating reaction and then a crude product was purified through column chromatography { Ethyl acetate (EA):hexane (HX)= 1: 1} and recrystallization.Yield: 93%

References:

KT&G LIFE SCIENCE CO., LTD;LEE, HWEE SUNG;LEE, MI JUNG;KIM, BO JUNG;NOH, TAE CHUL;LEE, SUNG HOON;LEE, GYU DAE;LEE, YU HEE;KWAK, TAE HWAN KR2015/80425, 2015, A Location in patent:Paragraph 0263-0267

2,5-Dimethoxyacetoacetanilide Related Search: