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ChemicalBook CAS DataBase List 2,3,6,7-TETRACHLORONAPHTHALENE
34588-40-4

2,3,6,7-TETRACHLORONAPHTHALENE synthesis

15synthesis methods
24006-92-6 Synthesis
4,5-DICHLORO-1,2-BENZENEDIMETHANOL

24006-92-6
30 suppliers
$71.00/100mg

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Yield:-

Steps:

Multi-step reaction with 10 steps
1: 77 g / 45percent HBr / H2O / 4 h / Heating
2: 18 g / Na2S*9H2O / 0.5 h
3: 13.4 g / 40percent CH3CO2OH / CHCl3
4: 5.9 g / 7 h / 230 °C
5: 5.4 g / NBS, AIBN / acetic anhydride / 1.5 h / Heating
6: 4.1 g / methanol / 2 h / Heating
7: 2.3 g / Et3N, diphenylphosphoryl azide / 6 h / Heating
8: 1.8 g / HCl / diethyl ether
9: 1.) NaNO2, HCl, 2.) CuCl, HCl / 1.) H2O, 0 deg C

References:

Levy, Louis A. [Synthetic Communications,1983,vol. 13,# 8,p. 639 - 648]