ChemicalBook CAS DataBase List 1,2-Bis(4-chlorophenyl)hydrazine

1,2-Bis(4-chlorophenyl)hydrazine synthesis

10synthesis methods

Product Name:1,2-Bis(4-chlorophenyl)hydrazine
CAS Number:953-14-0
Molecular formula:C12H10Cl2N2
Molecular Weight:253.13

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Yield: 87%

Reaction Conditions:

Stage #1:bis-(4-chloro-phenyl)-diazene;bis(pinacol)diborane with pyridine-4-carbonitrile in pentane at 70; for 24 h;Inert atmosphere;
Stage #2: with water in pentane at 20; for 0.25 h;

Steps:

10 This example is an example of synthesizing 4,4'-dimethylhydrogenazobenzene by the method of:
(0.2 mmol) of 4,4'-dichlorobenzene, 76.3 mg (0.3 mmol) of bis (pinacolato) diborane,(0.04 mmol) of 4-cyanopyridine, 1.0 mL of n-pentane, sealed with nitrogen gas, and reacted at 70C for 24 hours. PlusAfter stirring for 15 min at room temperature, the solvent was distilled off and CH2Br2 was added as an internal standard. 1H-NMRThe yield of 4,4'-dichloroazobenzene was 87%.

References:

Nanjing University;Li, Shuhua;Wang, Guoqiang CN105503925, 2016, A Location in patent:Paragraph 0050; 0051; 0052