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 Carbamic acid, [(2Z)-2-(hydroxyamino)-2-iminoethyl]-, 1,1-dimethylethyl ester
479080-20-1

Carbamic acid, [(2Z)-2-(hydroxyamino)-2-iminoethyl]-, 1,1-dimethylethyl ester synthesis

1synthesis methods
85363-04-8 Synthesis
N-(tert-Butoxycarbonyl)-2-aminoacetonitrile

85363-04-8
109 suppliers
$6.00/250mg

Carbamic acid, [(2Z)-2-(hydroxyamino)-2-iminoethyl]-, 1,1-dimethylethyl ester

479080-20-1
32 suppliers
inquiry

-

Yield:479080-20-1 85%

Reaction Conditions:

with hydroxylamine in ethanol;water at 80; for 1.5 h;

Steps:

64

Intermediate 641 ,1 -Dimethylethyl [2-(hydroxyamino)-2-iminoethyl]carbamateA flask was charged with 1 ,1 -dimethylethyl (cyanomethyl)carbamate (1 .562 g, 10 mmol) then filled with ethanol (15 mL) and hydroxylamine (50% w/w in water, 2.451 mL, 40.0 mmol) and the resulting mixture was stirred at 80°C for 1 .5 h then cooled to room temperature and concentrated in vacuo. The residue was dissolved in DCM and the organic phase was dried using a phase separator then concentrated in vacuo. Trituration of the residue in Et20 gave 1 ,1 -dimethylethyl [2-(hydroxyamino)-2-iminoethyl]carbamate (1 .8 g, 9.51 mmol, 95 % yield) as a white solid which was used in the next step without further purification.

References:

WO2011/54841,2011,A1 Location in patent:Page/Page column 72-73

Carbamic acid, [(2Z)-2-(hydroxyamino)-2-iminoethyl]-, 1,1-dimethylethyl ester Related Search:

察雅县| 洪雅县| 横山县| 南召县| 定边县| 苏尼特左旗| 亳州市| 常宁市| 蓬莱市| 微山县| 三亚市| 巫山县| 大渡口区| 南陵县| 星座| 江陵县| 牟定县| 天台县| 海伦市| 连云港市| 盐源县| 西和县| 华坪县| 抚松县| 满洲里市| 宁明县| 正镶白旗| 武穴市| 松滋市| 新龙县| 北辰区| 阳谷县| 托克逊县| 黑河市| 司法| 东辽县| 宁陵县| 临安市| 镇安县| 墨脱县| 从化市|