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 N-(2-Hydroxyethyl)pyrrolidine
2955-88-6

N-(2-Hydroxyethyl)pyrrolidine synthesis

12synthesis methods
-

Yield:2955-88-6 83%

Reaction Conditions:

in tetrahydrofuran; for 36 h;Heating / reflux;

Steps:

58

Intermediate (58) : Preparation of 2-(methyl-propyl-amino)-ethanol; Pyrrolidine (0.835ml, lOmmol) and 2-bromoethanol (0.28ml, 4.0mmol) were dissolved in THF (10ml). The reaction mixture was refluxed for 36 hours. The solvent was removed under reduced pressure. The residue was purified by column chromatography (dichlorome thane: methanol = 10:1) to give 380mg (yield: 83%, brown oil) of the target compound.[1141] 1U NMR(400D, CDCI): δ 3.64(t, J=5.6Hz, 2H), 2.65(t, J=5.6Hz, 2H), 2.56(m, 4H),1.78(m, 4H)

References:

WO2007/102679,2007,A1 Location in patent:Page/Page column 106

N-(2-Hydroxyethyl)pyrrolidine Related Search: