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Here, it was reported that heating graphite\u2010supported potassium hydride (KH\/C) with toluene under H<jats:sub>2<\/jats:sub> atmosphere provided benzene already at 125\u2013250\u2009\u00b0C. Depending on the H<jats:sub>2<\/jats:sub> pressure, the reaction was either substoichiometric ( \u226411\u2005bar) or catalytic ( \u226550\u2005bar) with respect to KH, indicating that KH may serve as a radical chain initiator. At 250\u2009\u00b0C, the selectivity to benzene was 98 and 63\u2009% when using 6 and 80\u2005bar of H<jats:sub>2<\/jats:sub>, respectively, owing to the competing formation of cyclohexane and methylcyclohexane at high H<jats:sub>2<\/jats:sub> pressure. The used KH\/C material was amenable to recycling without a notable loss in the yield of benzene.<\/jats:p>","DOI":"10.1002\/cssc.202202029","type":"journal-article","created":{"date-parts":[[2022,11,29]],"date-time":"2022-11-29T12:44:37Z","timestamp":1669725877000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":10,"title":["Production of Benzene by the Hydrodemethylation of Toluene with Carbon\u2010Supported Potassium Hydride"],"prefix":"10.1002","volume":"16","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-3496-8859","authenticated-orcid":false,"given":"Fei","family":"Chang","sequence":"first","affiliation":[{"name":"Laboratory of Energy Science and Engineering Department of Mechanical and Process Engineering ETH Z\u00fcrich  8092 Z\u00fcrich 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