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3. The process according to claim 1, wherein the alkaline azide is selected from sodium azide, potassium azide, more preferably sodium azide.
5. The process according to claim 4, wherein aromatic hydrocarbons selected from benzene, toluene, xylenes more preferably o-xylene.
6. The process according to claim 4, wherein the polar aprotic organic solvent employed is selected from dimethylformamide, N-methylpyrrolidinone, more preferably dimethylformamide. |