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 Dimethyl adipate
627-93-0

Dimethyl adipate synthesis

10synthesis methods
Dimethyl adipate was synthesized by immobilized Candida antarctica lipase B-catalyzed esterification of adipic acid and methanol.
Synthesis of Diethyl Adipate
According to the general procedure described above, Dimethyl adipate has been synthesized from adipic acid (730mg, 5 mmol) and methanol (10 ml). Yield: 9%.
1H NMR (400.1 MHz, CDCl3): δ = 3.56 (6H, s, H1-H10), 2.23 (4H, m, H4-H7), 1.56 (4H, m, H5-H6).
13C NMR (100.5 MHz, CDCl3): δ = 173.4 (C3-C8), 51.2 (C1-C10), 33.4 (C4-C7), 24.1 (C5-C6)
https://pubmed.ncbi.nlm.nih.gov/20632329/
-

Yield:627-93-0 73%

Reaction Conditions:

with triethylamine at 160; for 5 h;Autoclave;Green chemistry;

Steps:

Methylation of carboxylic acids with dimethylcarbonate. General procedure
General procedure: Into a stainless steel pressure microreactor of capacity 17 mL was charged 5 wt % of zeolite NaY-Bf, 100 mmol of carboxylic acid, and 300-400 mmol of dimethyl carbonate, the reactor was hermetically closed, and the reaction mixture was heated at 180-200°C for 5 h. On completion of the reaction the reactor was cooled to room temperature, opened, the reaction mixture was filtered through a bed of Al2O3. Unreacted dimethyl carbonate was distilled off, the residue was distilled at atmospheric pressure or in a vacuum, or it was crystallized from ethanol.

References:

Khusnutdinov;Shchadneva;Mayakova, Yu. Yu.;Konovalova, Yu. S.;Khazipova;Kutepov [Russian Journal of Organic Chemistry,2017,vol. 53,# 2,p. 163 - 168][Zh. Org. Khim.,2017,vol. 53,# 2,p. 177 - 181,5]

Dimethyl adipate Related Search: