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 SUBERIC ACID MONOMETHYL ESTER
3946-32-5

SUBERIC ACID MONOMETHYL ESTER synthesis

8synthesis methods
-

Yield:3946-32-5 80%

Reaction Conditions:

for 3 h;Reflux;

Steps:

8-Methoxy-8-oxooctanoic acid (12).
The solution of compound 9 (2.0 g, 12.8 mmol) in methanol (6.5 ml) was stirred at reflux in pressure tube during 3 h. The reaction mixture was evaporated to dryness and treated with ether. The white precipitate formed was filtered off. Yield 1.92 g(80%). 1H NMR spectrum (400 MHz, DMSO-d6), δ, ppm(J, Hz): 1.15-1.28 (4H, m, (CH2)2(CH2)2CO2CH3); 1.37-1.52 (4H, m, HO2C(CH2CH2CH2)2CO2CH3); 2.14 (2H, t,J = 7.4, CH2CO2CH3); 2.24 (2H, t, J = 7.4, CH2CO2H);3.54 (3H, s, CO2CH3, partially overlapped with water signal); 11.94 (1H, br. s, CO2H).

References:

Nikitjuka, Anna;Shestakova, Irina;Romanchikova, Nadezhda;Jirgensons, Aigars [Chemistry of Heterocyclic Compounds,2015,vol. 51,# 7,p. 647 - 657][Khim. Geterotsikl. Soedin.,2015,vol. 51,# 7,p. 647 - 657,11]

FullText

SUBERIC ACID MONOMETHYL ESTER Related Search: