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 9-Anthracenemethanol
1468-95-7

9-Anthracenemethanol synthesis

12synthesis methods
9-Anthracenemethanol is synthesized by hydrogenation of 9-anthracenecarboxaldehyde. It is a versatile precursor to supramolecular assemblies.
-

Yield:1468-95-7 99%

Reaction Conditions:

with sodium tetrahydroborate in ethanol at 20; for 0.5 h;

Steps:

Anthracen-9-yl-methanol

General procedure: 9-Anthraldehyde (1; 206 mg, 1.0 mmol) wassuspended in ethanol (3.0 mL). To the suspension was added sodium borohydride(38 mg, 1.0 mmol). After stirring for 30 min at rt, the reaction mixture was quenched with water (2 mL). The aqueous phase was extracted with ether (5 mL). The organicextract was dried over anhydrous Na2SO4 and concentrated to give the crude alcohol, which waspurified by flash column chromatography (silica gel 10 g, hexanes/ethyl acetate = 80/20) to give thealcohol 5 (206 mg, 99%) as a pale yellow solid. Registry number 1468-95-7; Rf = 0.27(hexane:AcOEt = 80:20); 1H NMR (CDCl3, 300 MHz) δ = 1.80 (brs, 1H, -OH), 5.62 (s, 2H, -CH2-),7.38-7.64 (m, 4H, Ar), 8.00 (d, J = 8.3 Hz, 2H, Ar), 8.38 (d, J = 8.7 Hz, 2H, Ar), 8.44 (s, 1H, H-10)

References:

Mase, Nobuyuki;Takabe, Kunihiko;Tanaka, Fujie [Tetrahedron Letters,2013,vol. 54,# 32,p. 4306 - 4308] Location in patent:supporting information

9-Anthracenemethanol Related Search:

庆元县| 茶陵县| 开远市| 崇左市| 宝坻区| 澜沧| 台南县| 垦利县| 天峨县| 嵊州市| 石楼县| 福泉市| 青岛市| 太原市| 许昌县| 肇源县| 新巴尔虎右旗| 樟树市| 延边| 长春市| 泉州市| 高要市| 元阳县| 屯门区| 论坛| 永嘉县| 梨树县| 抚顺县| 凤台县| 洛阳市| 沁阳市| 新建县| 休宁县| 明星| 白山市| 灵武市| 昌平区| 鄯善县| 卢湾区| 望都县| 晴隆县|