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 (S)-(-)-2,2'-Diamino-1,1'-binaphthalene
18531-95-8

(S)-(-)-2,2'-Diamino-1,1'-binaphthalene synthesis

11synthesis methods
-

Yield:18531-95-8 90%

Reaction Conditions:

with ammonia;sodium hydrogencarbonate in water at 150;Large scale;Bucherer Carbazole Synthesis;

Steps:

1.1 (1) Synthesis of 1,1'-binaphthyl-2,2'-diamine

Add 1,1'-bin-2-naphthol (5.73kg,20mol),ammonia (3.5kg, 100mol),sodium bisulfite (10.4kg, 100mol) and 25L water,reaction at 150,After the reaction,5.12 kg of 1,1'-binaphthyl-2,2'-diamine was obtained by recrystallization, with a yield of 90%.

References:

CN111606946,2020,A Location in patent:Paragraph 0027-0029

(S)-(-)-2,2'-Diamino-1,1'-binaphthalene Related Search:

阿拉善盟| 山阳县| 嵊泗县| 昌吉市| 德格县| 湘潭县| 桃园市| 灵武市| 临海市| 横山县| 深泽县| 时尚| 镇沅| 家居| 林周县| 博湖县| 枣庄市| 丹阳市| 灌南县| 乌恰县| 乐昌市| 永安市| 灵台县| 洛阳市| 伊通| 洪雅县| 松江区| 牟定县| 松江区| 海伦市| 肥西县| 锦屏县| 富裕县| 海城市| 平潭县| 攀枝花市| 霞浦县| 楚雄市| 崇左市| 贡嘎县| 曲沃县|