天堂网亚洲,天天操天天搞,91视频高清,菠萝蜜视频在线观看入口,美女视频性感美女视频,95丝袜美女视频国产,超高清美女视频图片

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 EthanediaMide iMpurity D
480452-36-6

EthanediaMide iMpurity D synthesis

3synthesis methods
365998-36-3 Synthesis
tert-butyl (1R,2S,5S)-2-aMino-5-(diMethylcarbaMoyl)cyclohexylcarbaMate

365998-36-3
186 suppliers
$7.00/250mg

349125-08-2 Synthesis
N-(5-Chloropyridin-2-yl)oxalaMic acid ethyl ester

349125-08-2
140 suppliers
$236.47/250mg

EthanediaMide  iMpurity D

480452-36-6
81 suppliers
inquiry

-

Yield:480452-36-6 93%

Reaction Conditions:

with sodium acetate in N,N-dimethyl-formamide at 90; for 7 h;Reagent/catalyst;Temperature;Solvent;

Steps:

1-4 Example 2

DMF (120g) was placed in a 500mL reaction flask,Compound A (22.5 g, 0.079 mol, 1.00 eq.) was added successively,Compound B (18.9g, 0.083mol, 1.05eq.) and sodium acetate (9.7g, 0.118mol, 1.50eq.) were heated to 90° C. to react for 7h. Add 240g of water,Incubate the reaction at 85 °C for 1 h,There is solid precipitation,Suction filtration, the filter cake was rinsed with water,Compound I obtained after drying was off-white solid 34.3g,Yield: 93.0%,Purity: 98.9%.

References:

CN113968813,2022,A Location in patent:Paragraph 0038-0049

EthanediaMide iMpurity D Related Search: