🌐EnglishEnglishDeutschEspañolفارسی中文日本語EntityQ392495· pop 9· linked from 11 articlesJapp–Klingemann reactionChemical reactionAvailable in 8 languagesEspañolDeutsch中文日本語CzechFinnishفارسیvia Wikidata sitelinks · CC0ConnectionshydrogenEntitychemical reactionEntityCategoriesName reactionsSubstitution reactions