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 HYDROPRENE
41096-46-2

HYDROPRENE synthesis

8synthesis methods
-

Yield:-

Steps:

Multi-step reaction with 8 steps
1: MnO2
2: Et3N / N-(2-hydroxyethyl)-thiazolium bromide / dioxane / 20 h / 95 - 100 °C
3: sodium borohydride / tetrahydrofuran / 1 h / 0 °C
4: pyridine / 24 h / 25 °C
5: potassium t-butoxid, 18-Crown-6 / benzene / 0.5 h / Ambient temperature
6: NaBH4 / ethanol / 4 h / Heating
7: PBr3, LiBr, 2,4,6-collidine / 3 h / -40 - 0 °C
8: 1.) ZnBr2, 2.) DBU / 1.) ether, -40 deg C to 0 deg C, 2 h, 2.) 50 deg C, 2 h

References:

Baan, Gabor;Vinczer, Peter;Novak, Lajos;Szantay, Csaba [Tetrahedron Letters,1985,vol. 26,# 35,p. 4261 - 4264]

HYDROPRENE Related Search:

苏尼特右旗| 旬邑县| 东宁县| 晋宁县| 钦州市| 保德县| 临颍县| 司法| 开鲁县| 京山县| 曲松县| 兴安盟| 北宁市| 田林县| 高邑县| 新营市| 双鸭山市| 晋州市| 尖扎县| 邯郸市| 咸宁市| 十堰市| 武城县| 元阳县| 汉源县| 洞口县| 马公市| 田林县| 双江| 海盐县| 南昌市| 佛冈县| 石景山区| 阜新市| 措勤县| 法库县| 筠连县| 舟山市| 泸西县| 浦城县| 卢氏县|