天堂网亚洲,天天操天天搞,91视频高清,菠萝蜜视频在线观看入口,美女视频性感美女视频,95丝袜美女视频国产,超高清美女视频图片

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 1-(4-CHLOROPHENYL)-2-METHOXY-2-OXO-1-ETHANAMINIUM CHLORIDE
42718-19-4

1-(4-CHLOROPHENYL)-2-METHOXY-2-OXO-1-ETHANAMINIUM CHLORIDE synthesis

3synthesis methods
-

Yield:42718-19-4 100%

Reaction Conditions:

Stage #1: methanolwith thionyl chloride at 0; for 0.75 h;
Stage #2: 2-(4-Chlorophenyl)glycine at 0 - 40; for 48 h;

Steps:

1

Description 1; To ice-chilled methanol (300ml) under argon was carefully added dropwise thionyl chloride (15.44ml; 0.217mol) over 45min. 4-Chlorophenylglycine (26.26g; 0.141 mol) was added, ice cooling removed and the reaction mixture warmed to 400C; the reaction was stirred at 400C for 48h. After cooling to room temperature, the reaction was evaporated under reduced pressure. Re-evaporation from methanol afforded a white solid which was triturated with diethyl ether (ca. 700ml) and then stored at ca. 40C for 64h, filtered, washed with diethyl ether and dried in vacuo to afford the title product as the hydrochloride salt (33.4Og; 100%). 1H NMR (d6-DMSO) δ: 3.72 (3H, s), 5.36 (1 H, s), 7.53 - 7.58 (4H, m), 9.07 (3H, s). Mass Spectrum (Electrospray LC/MS): Found 200 (MH+). C9H1035CINO2 requires 199. Ret. time 1.32 min.

References:

WO2008/92874,2008,A1 Location in patent:Page/Page column 31

1-(4-CHLOROPHENYL)-2-METHOXY-2-OXO-1-ETHANAMINIUM CHLORIDE Related Search: