一二三四区视频,亚洲少妇熟女色,日本久热无码视频网,欧美国产日韩大尺度,亚洲a视频,久久少妇一区二区,日韩999无码视频,刺激久久久久久久,啊啊啊啊不要啊在线

Welcome to chemicalbook!
Chinese English Japanese Germany Korea
010-86108875
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-BOC-1,12-DIAMINODODECANE
109792-60-1

1-BOC-1,12-DIAMINODODECANE synthesis

3synthesis methods
2783-17-7 Synthesis
1,12-Dodecanediamine

2783-17-7
224 suppliers
$9.00/5g

24424-99-5 Synthesis
Di-tert-butyl dicarbonate

24424-99-5
861 suppliers
$13.50/25G

-

Yield: 99%

Reaction Conditions:

with sodium hydroxide in dichloromethane;water for 1.08333 h;

Steps:

48 Example 48
Mono Protection of 1,12-Diaminododecane with BOC.
;1,12-Diaminododecane (1.0 g, 10 mmol amine, Aldrich Chemical Company) was taken up with dichloromethane (25 ML) and H2O (25 ML).sodium hydroxide (2 pellets, Fisher Scientific) were added and the reaction was stirred vigorously. Di-tert-butyl dicarbonate (500 mg, 2.3 mmol, Aldrich Chemical Company) was taken up in dichloromethane (10 ML) and added dropwise to the stirring reaction over 5 min.After 1 hr, the reaction was analyzed by TLC and mass spectrometry (Sciex API 150EX) to verify that the reaction was complete.The reaction was transferred to a separatory funnel and the layers were separated.The organic layer was concentrated under reduced pressure.Half of the concentrated material was brought up in hot acetonitrile (100 ML), and crystallized.The material was spun down by centrifugation and washed with acetonitrile (2*25 ML).The material was dried on high vacuum and yielded crystalline material (745 mg, 99% yield).The product, boc-aminedodecaneamine was verified by TLC and mass spectrometry (Sciex API 150EX).

References:

Monahan, Sean D.;Nader, Lisa;Wolff, Jon A.;Budker, Vladimir G.;Hagstrom, James E. US2003/235916, 2003, A1 Location in patent:Page 21

柯坪县| 七台河市| 微山县| 离岛区| 瑞丽市| 墨竹工卡县| 朝阳区| 澎湖县| 冷水江市| 赣州市| 墨竹工卡县| 武宁县| 南涧| 长白| 永平县| 富源县| 泰州市| 怀安县| 罗源县| 石楼县| 阿巴嘎旗| 抚州市| 长治县| 杂多县| 龙胜| 昂仁县| 特克斯县| 湖南省| 醴陵市| 恭城| 宜黄县| 保亭| 泗水县| 墨竹工卡县| 蒲城县| 清涧县| 扎赉特旗| 长岛县| 五指山市| 平昌县| 思南县|