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ChemicalBook CAS DataBase List 1-NITRO-2-PROPYLBENZENE

1-NITRO-2-PROPYLBENZENE synthesis

8synthesis methods
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Yield:24503-35-3 61 %Spectr. ,10342-59-3 31 %Spectr. ,7137-54-4 5 %Spectr.

Reaction Conditions:

with zeolite Hβ;nitric acid;propionic acid anhydride at 0 - 50; for 4 h;regioselective reaction;

Steps:

4 Typical experimental procedure for the double nitration of toluene using nitric acid, propanoic anhydride and zeolite Hβ catalyst

General procedure: Propanoic anhydride (16.90 g, 130 mmol) was added to a stirring mixture of nitric acid (7.65 g, 100%, 120 mmol), and Hβ (2.0 g, SiO2:Al2O3 = 25) at 0 °C and the mixture was stirred for 5 min at constant temperature. Toluene (3.22 g, 35 mmol) was then added dropwise, and the mixture was allowed to warm to room temperature. The flask was equipped with a water condenser fitted with a calcium chloride guard tube and was stirred at 50 °C for 4 h. The reaction mixture was cooled to room temperature, analytical grade acetone (30 mL) was then added, and the mixture was stirred for 5 min. The zeolite was removed by suction filtration and washed with copious amounts of acetone. The mother liquors were combined, hexadecane (1.00 g) was added, and the mixture was subjected to GC analysis.

References:

Smith, Keith;Alotaibi, Mohammad Hayal;El-Hiti, Gamal A. [Journal of Catalysis,2013,vol. 297,p. 244 - 247]

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