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 Ethyl 4-bromophenylacetate
14062-25-0

Ethyl 4-bromophenylacetate synthesis

11synthesis methods
-

Yield:14062-25-0 99%

Reaction Conditions:

with sulfuric acid in ethanol

Steps:

202.1 N-(2-fluorobenzyl)-4-[N'-[2-[3-[(1S)-1-aminoethyl]phenoxy]-4-chlorophenyl]-N'-[(2'-methoxybiphenyl-4-yl)acetyl]]aminobutylamide hydrochloride
(1) Concentrated sulfuric acid (10 ml) was added to an ethanol (300 ml) solution of 4-bromophenylacetic acid (25 g, 120 mmols), and heated under reflux for 15 hours. The reaction mixture was concentrated under reduced pressure, and the residue was poured into water with ice, and extracted with ethyl acetate. The extract was washed with water, and then dried with anhydrous magnesium sulfate. This was concentrated under reduced pressure to give an oil of ethyl 4-bromophenylacetate (28 g, 99%). 1H-NMR (CDCl3) δ: 1.25(3H,t,J=7.2Hz), 3.56(2H,s),

References:

Takeda Chemical Industries, Ltd. EP1123918, 2001, A1

FullText

Ethyl 4-bromophenylacetate Related Search: