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-(PHENYL) 2-NITROETHANE
6125-24-2

1-(PHENYL) 2-NITROETHANE synthesis

12synthesis methods
1-(Phenyl) 2-nitroethane is prepared:
1) from beta-Phenylethylamine by oxidation. The amine is obtained from Benzyl cyanide in liquid Ammonia with a Raney-Nickel catalyst, by hydrogenation.
2) by isolation from the essential oil of the leaves of Aniba canellila (in Brazil).
-

Yield: 75%

Reaction Conditions:

with hydrogenchloride;sodium tetrahydroborate;SiO2 in chloroform

Steps:

15.b 15b.
15b. 2-phenylnitroethane 2-Phenylnitroethene (5.12 g, 34.3 mmol, from step 15a) was dissolved in CHCl3 /i-PrOH (410:85 mL) and SiO2 (51.4 g) was added. NaBH4 (5.2 g, 137 mmol) was added in portions, and the mixture was stirred for 90 minutes at room temperature. HCl (0.5N, 100, mL) was added, and the mixture was stirred for 30 minutes. The layers were separated, and the aqueous phase was extracted with methylene chloride. The organic layers were combine, dried (MgSO4) and concentrated. The residue was chromatographed on silica gel (eluding with ether:hexanes 1:30) to give the title compound as an oil (3.89 g, 75%).

References:

Abbott Laboratories US5733912, 1998, A

1-(PHENYL) 2-NITROETHANE Related Search:

平乐县| 永善县| 乌兰县| 益阳市| 陇南市| 营山县| 琼海市| 滕州市| 诏安县| 峨山| 中卫市| 忻城县| 武陟县| 武宁县| 昌黎县| 广宁县| 东乌| 增城市| 辽宁省| 自治县| 调兵山市| 东至县| 大荔县| 商都县| 梁山县| 丁青县| 庆阳市| 乌鲁木齐市| 彝良县| 阿坝县| 江油市| 鹤峰县| 吉首市| 渝北区| 于都县| 道孚县| 泉州市| 饶平县| 长宁区| 汾阳市| 乌什县|