Photocyanation of Aromatic Hydrocarbons Investigated in Micro Reactors

3 Photocyanation of Aromatic Hydrocarbons Investigated in Micro Reactors Oiganic synthesis 43 [OS 43] Photocyanation of pyrene 

The pyrene molecule is transferred by irradiation to its cation radical [29]. This reacts at the oil/water interface by nucleophilic attack from the cyanide ion. Typically, the cyanated product remains in the organic phase. 

Three-liquid layer processing - thinning of lamellae 

Using a three-liquid layer (oil/water/oil) flow only gave a yield of about 35% (210 s, 0.2 pi min , room temperature, 300 W, 300 nm wavelength) [29]. This is explained by the fact that the specific interface here is not as large as for the water/ oil/water flow. This is due to the larger volume of the oil phase compared with the water phase [29]. 

Aromatic Substitution by Metai Cataiysis or Other Compiex Mechanisms 

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