天堂网亚洲,天天操天天搞,91视频高清,菠萝蜜视频在线观看入口,美女视频性感美女视频,95丝袜美女视频国产,超高清美女视频图片

Welcome to chemicalbook!
Chinese English Japanese Germany Korea
400-158-6606
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 4,4'-Bis(N-carbazolyl)-1,1'-biphenyl
58328-31-7

4,4'-Bis(N-carbazolyl)-1,1'-biphenyl synthesis

14synthesis methods
-

Yield:58328-31-7 77% ,342638-54-4 8.5% ,1325751-60-7 4%

Reaction Conditions:

with potassium tert-butylate in toluene at 130 - 140; for 48 h;Inert atmosphere;Autoclave;regioselective reaction;

Steps:

Synthesis of bis (9H-carbozol-9-yl)-biphenyls 2 (general procedure).
General procedure: Potassium tertbutoxide (1.12 g, 10 mmol) and carbazole (1.67 g, 10 mmol) were added to appropriate dihalobiphenyl 1 (1 mmol) in dry toluene (20 mL). The mixture was heated in a glass autoclave under argon at 130-140 C for 48 h.The resulting suspension was diluted with water to remove inorganic impurities. The organic layer was separated, concentrated to dryness, and chromatographed on silica gel using a 0-10% acetone solution in hexane.

References:

Kovalev;Pavlyuk;Zaripov;Zyryanov;Kopchuk;Rusinov;Chupakhin [Russian Chemical Bulletin,2015,vol. 64,# 8,p. 1978 - 1981][Izv. Akad. Nauk, Ser. Khim.,2015,# 8,p. 1978 - 1981,4]

FullText

4,4'-Bis(N-carbazolyl)-1,1'-biphenyl Related Search: