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Langhals, Heinz ORCID: 0000-0002-8038-4547; Eberspächer, Moritz (2018): A Convenient Synthesis of Azulene. In: Synthesis-Stuttgart, Vol. 50, No. 9: pp. 1862-1866
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An improved and scalable synthesis of azulene has been developed by the application of pyrrolidine as a reagent and continuous steam distillation and extraction for workup. Applications for the coloration of perfluorinated media and silicones were demonstrated.