午夜插插,噜噜噜影院,啪啪伊人网,欧美熟夫,景甜吻戏视频,男人强操性感蕾丝美女视频在线网站,日本美女跳舞视频

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-[1,1'-Biphenyl-4-yl]-3-bromo-9H-carbazole
894791-46-9

9-[1,1'-Biphenyl-4-yl]-3-bromo-9H-carbazole synthesis

6synthesis methods
1592-95-6 Synthesis
3-Bromo-9H-carbazole

1592-95-6
406 suppliers
$5.00/1g

2217-77-8 Synthesis
BIPHENYL-4-YL-HYDRAZINE HYDROCHLORIDE

2217-77-8
28 suppliers
inquiry

-

Yield:894791-46-9 95%

Reaction Conditions:

with potassium carbonate;copper(l) chloride in acetonitrile at 0; for 4 h;Schlenk technique;

Steps:

3; 16

Add 0.2mmol (44mg) of biphenyl-4-hydrazine substrate, 0.2mmol (50mg) of 3-bromocarbazole, 1mg (5mol%) of cuprous chloride, 55mg (2eq.) of potassium carbonate to a 50mL Schlenk tube, Acetonitrile 2mL, magnetron was added, and the reaction was stirred at 0°C for 4h. After the reaction is over, add 50 mL of saturated brine, extract three times with 3*50 mL of dichloromethane, add anhydrous sodium sulfate to dry for 30 minutes, and then use a rotary evaporator to remove the low-boiling solvent. The reaction liquid was subjected to column evaporation after rotary evaporation to obtain the target product with a yield of 95%.

References:

CN112010798,2020,A Location in patent:Paragraph 0053-0056; 0099