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 Tris(2-(2-methoxyethoxy)ethyl)amine
70384-51-9

Tris(2-(2-methoxyethoxy)ethyl)amine synthesis

7synthesis methods
Tris(2-(2-methoxyethoxy)ethyl)amine was prepared by the reaction of 2-(2-methoxy-ethoxy)ethanol with a mixture of ammonia gas and hydrogen gas in the presence of catalytic amounts of Raney nickel.
-

Yield:70384-51-9 86.3%

Reaction Conditions:

with tetrabutylammomium bromide;potassium hydroxide in dimethyl sulfoxide at 60 - 120;Catalytic behavior;Inert atmosphere;Autoclave;Large scale;Reagent/catalyst;Solvent;

Steps:

2.1; 3.2 The second step: synthesis of tris(3,6-dioxaheptyl)amine
Under a nitrogen atmosphere, a 2-chloroethyl methyl ether 14.92 Kg (157.8 mol, 4 eq) was charged into a 50 L stainless steel reactor.Triethanolamine borate 6.2Kg (39.46mol, 1eq), tetrabutylammonium bromide 1.2Kg and dimethyl sulfoxide 28Kg, heated to 60At °C, 7.75Kg (138mol, 3.5eq) of potassium hydroxide was added in batches, and the reaction was carried out by heating to 120 ° C for 5-6 hours.By GC, a yellow oily liquid tris(3,6-dioxaheptyl)amine 11.01 Kg was obtained by distillation, HNMR purity: 99.4%, yield: 86.3%.

References:

Pulasi Science And Technology (Shanghai) Co., Ltd.;Lu Dianyun;Xiao Haiwang CN109354575, 2019, A Location in patent:Paragraph 0030-0033; 0038; 0039; 0040; 0044-0046

FullText

Tris(2-(2-methoxyethoxy)ethyl)amine Related Search: