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 Propyl acetate
109-60-4

Propyl acetate synthesis

11synthesis methods
By direct acetylation of propyl alcohol.
-

Yield:99.9 % ee , 69.2 % ee

Reaction Conditions:

with Candida antarctica lipase immobilized on acrylic resine in di-isopropyl ether at 40; for 24 h;Enzymatic reaction;enantioselective reaction;Solvent;

Steps:

2.5 General Procedure for the Alcoholysis of Racemic Acetates (1a-7a) with Candida antarctica- B lipase

General procedure: To 1 mmol of the racemic acetates (1a-7a) dissolved in Scheme 1 Possible pathways for enzymatic deacetylation of acetate 2 mL of organic solvent, 2 mmol of the appropriate alcohol and 12 mg of CAL-B, are added. The suspension was stirred at 40 °C for 24 h. The reaction mixture is filtered on Celite and concentrated in vacuo. The remaining acetate and the producing alcohol were separated by chromatography on silica gel (petroleum ether/ethyl acetate: 80/20) and analyzed by chiral GC. The same procedure was followed for the reactions in the presence of 60 mg of molecular sieves 4 ?.

References:

Zadi, Amna;Merabet-Khelassi, Mounia;Aribi-Zouioueche, Louisa [Catalysis Letters,2015,vol. 145,# 4,art. no. 1470,p. 1054 - 1061]

Propyl acetate Related Search: