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 1,3-BIS(BENZYLOXY)-2-PROPANOL
6972-79-8

1,3-BIS(BENZYLOXY)-2-PROPANOL synthesis

9synthesis methods
-

Yield: 50%

Reaction Conditions:

Stage #1:benzyl alcohol with sodium hydroxide in water for 0.166667 h;
Stage #2:epichlorohydrin in water at 25; for 16.5 h;

Steps:

9.c
A solution of sodium hydroxide (100 g, 2.5 mol) in water (200 mL) was added over 10 min to benzyl alcohol (400 g, 3.9 mol). The mixture was cooled to 25 0C, and then epichlorohydrin (100 g, 1.08 mol) was added with rapid stirring over 30 min. Vigorous stirring was continued for 16 h. The mixture was then diluted with water (1000 mL) and extracted with toluene (3x500 mL). The toluene extract was washed with water (500 mL), dried over Na2SC>4 and evaporated to an oil, which was distilled to yield 150 g (50%) of 1,3-di-O-benzylglycerol, bp 155°C (0.5 mm).

References:

ALT SOLUTIONS, INC. WO2007/106561, 2007, A2 Location in patent:Page/Page column 63

1,3-BIS(BENZYLOXY)-2-PROPANOL Related Search:

衡阳县| 大余县| 航空| 永春县| 张掖市| 新昌县| 峡江县| 社会| 永春县| 华宁县| 巨野县| 红桥区| 永城市| 巨野县| 茂名市| 云和县| 边坝县| 闻喜县| 泰宁县| 讷河市| 龙门县| 莱西市| 澄江县| 桐柏县| 齐齐哈尔市| 茶陵县| 凤阳县| 怀柔区| 八宿县| 天长市| 静乐县| 西贡区| 洪洞县| 丹棱县| 左贡县| 明水县| 湟中县| 安泽县| 井冈山市| 香港 | 海南省|