午夜插插,噜噜噜影院,啪啪伊人网,欧美熟夫,景甜吻戏视频,男人强操性感蕾丝美女视频在线网站,日本美女跳舞视频

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 FMOC-12-AMINODODECANOIC ACID
128917-74-8

FMOC-12-AMINODODECANOIC ACID synthesis

2synthesis methods
-

Yield: 43%

Reaction Conditions:

with sodium hydrogencarbonate in water;acetone at 20; for 20 h;

Steps:


Fmoc-OSu (6.55 g; 21.9 mmol) and NaHCO3 (2.39 g; 28.5 mmol) were added to a solution of12-aminododecanoic acid (4.71 g; 21.9 mmol) in acetone (90 mL) and water (90 mL), and then themixture was stirred at rt for 20 h. The reaction mixture was quenched with concentrated HCl until pH4-5, and the resulting precipitate was extracted into with EtOAc (3 x 50 mL). The resulting combinedorganic phases were dried with Na2SO4, filtered, and evaporated. The crude product was purifiedon a silica column (Hexane-EtOAc 3:1) to provide Fmoc-12-aminododecanoic acid (4.20 g; 43%) asa white solid. 1H NMR and 13C NMR were as reported [28].

References:

Zimmermann, Tomas;Christensen, S?ren Br?gger;Franzyk, Henrik [Molecules,2018,vol. 23,# 6,art. no. 1463]

FMOC-12-AMINODODECANOIC ACID Related Search: