{"id":34973,"date":"2025-12-08T08:57:36","date_gmt":"2025-12-08T07:57:36","guid":{"rendered":"https:\/\/georganics.sk\/?post_type=glossary&#038;p=34973"},"modified":"2025-12-08T08:57:36","modified_gmt":"2025-12-08T07:57:36","slug":"ullmann-reaction","status":"publish","type":"glossary","link":"https:\/\/georganics.sk\/de\/glossary\/ullmann-reaction\/","title":{"rendered":"Ullmann reaction"},"content":{"rendered":"<p>The Ullmann reaction, also recognized as Ullmann coupling, represents a significant method in organic chemistry for synthesizing biaryl compounds \u2013 molecules characterized by two aromatic rings joined by a single carbon-carbon bond. This reaction involves the coupling of two aryl halides, leveraging a copper catalyst to facilitate the bond formation. The reaction, first described by German chemist Fritz Ullmann in 1901, remains a foundational process for creating these vital structural motifs, often used in the synthesis of pharmaceuticals, polymers, and other complex organic molecules.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The Ullmann reaction, also recognized as Ullmann coupling, represents a significant method in organic chemistry for synthesizing biaryl compounds \u2013 molecules characterized by two aromatic rings joined by a single carbon-carbon bond. This reaction involves the coupling of two aryl halides, leveraging a copper catalyst to facilitate the bond formation. The reaction, first described by [&hellip;]<\/p>\n","protected":false},"author":6,"featured_media":0,"parent":0,"template":"","glossary-cat":[627],"class_list":["post-34973","glossary","type-glossary","status-publish","hentry","glossary-cat-reactions-mechanisms"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.4 (Yoast SEO v27.4) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Ullmann reaction - Georganics<\/title>\n<meta name=\"description\" content=\"Explore the Ullmann reaction, a key organic chemistry method for synthesizing vital biaryl compounds through aryl halide coupling.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/georganics.sk\/de\/glossary\/ullmann-reaction\/\" \/>\n<meta property=\"og:locale\" content=\"de_DE\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Ullmann reaction\" \/>\n<meta property=\"og:description\" content=\"Explore the Ullmann reaction, a key organic chemistry method for synthesizing vital biaryl compounds through aryl halide coupling.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/georganics.sk\/de\/glossary\/ullmann-reaction\/\" \/>\n<meta property=\"og:site_name\" content=\"Georganics\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Gesch\u00e4tzte Lesezeit\" \/>\n\t<meta name=\"twitter:data1\" content=\"1\u00a0Minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/georganics.sk\\\/de\\\/glossary\\\/ullmann-reaction\\\/\",\"url\":\"https:\\\/\\\/georganics.sk\\\/de\\\/glossary\\\/ullmann-reaction\\\/\",\"name\":\"Ullmann reaction - Georganics\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/georganics.sk\\\/de\\\/#website\"},\"datePublished\":\"2025-12-08T07:57:36+00:00\",\"description\":\"Explore the Ullmann reaction, a key organic chemistry method for synthesizing vital biaryl compounds through aryl halide coupling.\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/georganics.sk\\\/de\\\/glossary\\\/ullmann-reaction\\\/#breadcrumb\"},\"inLanguage\":\"de\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/georganics.sk\\\/de\\\/glossary\\\/ullmann-reaction\\\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/georganics.sk\\\/de\\\/glossary\\\/ullmann-reaction\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home page\",\"item\":\"https:\\\/\\\/georganics.sk\\\/de\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Glossary Terms\",\"item\":\"https:\\\/\\\/georganics.sk\\\/de\\\/glossary\\\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Ullmann reaction\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/georganics.sk\\\/de\\\/#website\",\"url\":\"https:\\\/\\\/georganics.sk\\\/de\\\/\",\"name\":\"Georganics\",\"description\":\"blog\",\"publisher\":{\"@id\":\"https:\\\/\\\/georganics.sk\\\/de\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/georganics.sk\\\/de\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"de\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/georganics.sk\\\/de\\\/#organization\",\"name\":\"Georganics Ltd.\",\"url\":\"https:\\\/\\\/georganics.sk\\\/de\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"de\",\"@id\":\"https:\\\/\\\/georganics.sk\\\/de\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/georganics.sk\\\/wp-content\\\/uploads\\\/2021\\\/03\\\/georganics-logo.png\",\"contentUrl\":\"https:\\\/\\\/georganics.sk\\\/wp-content\\\/uploads\\\/2021\\\/03\\\/georganics-logo.png\",\"width\":382,\"height\":122,\"caption\":\"Georganics Ltd.\"},\"image\":{\"@id\":\"https:\\\/\\\/georganics.sk\\\/de\\\/#\\\/schema\\\/logo\\\/image\\\/\"}}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"Ullmann reaction - Georganics","description":"Explore the Ullmann reaction, a key organic chemistry method for synthesizing vital biaryl compounds through aryl halide coupling.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/georganics.sk\/de\/glossary\/ullmann-reaction\/","og_locale":"de_DE","og_type":"article","og_title":"Ullmann reaction","og_description":"Explore the Ullmann reaction, a key organic chemistry method for synthesizing vital biaryl compounds through aryl halide coupling.","og_url":"https:\/\/georganics.sk\/de\/glossary\/ullmann-reaction\/","og_site_name":"Georganics","twitter_card":"summary_large_image","twitter_misc":{"Gesch\u00e4tzte Lesezeit":"1\u00a0Minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/georganics.sk\/de\/glossary\/ullmann-reaction\/","url":"https:\/\/georganics.sk\/de\/glossary\/ullmann-reaction\/","name":"Ullmann reaction - Georganics","isPartOf":{"@id":"https:\/\/georganics.sk\/de\/#website"},"datePublished":"2025-12-08T07:57:36+00:00","description":"Explore the Ullmann reaction, a key organic chemistry method for synthesizing vital biaryl compounds through aryl halide coupling.","breadcrumb":{"@id":"https:\/\/georganics.sk\/de\/glossary\/ullmann-reaction\/#breadcrumb"},"inLanguage":"de","potentialAction":[{"@type":"ReadAction","target":["https:\/\/georganics.sk\/de\/glossary\/ullmann-reaction\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/georganics.sk\/de\/glossary\/ullmann-reaction\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home page","item":"https:\/\/georganics.sk\/de\/"},{"@type":"ListItem","position":2,"name":"Glossary Terms","item":"https:\/\/georganics.sk\/de\/glossary\/"},{"@type":"ListItem","position":3,"name":"Ullmann reaction"}]},{"@type":"WebSite","@id":"https:\/\/georganics.sk\/de\/#website","url":"https:\/\/georganics.sk\/de\/","name":"Georganics","description":"blog","publisher":{"@id":"https:\/\/georganics.sk\/de\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/georganics.sk\/de\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"de"},{"@type":"Organization","@id":"https:\/\/georganics.sk\/de\/#organization","name":"Georganics Ltd.","url":"https:\/\/georganics.sk\/de\/","logo":{"@type":"ImageObject","inLanguage":"de","@id":"https:\/\/georganics.sk\/de\/#\/schema\/logo\/image\/","url":"https:\/\/georganics.sk\/wp-content\/uploads\/2021\/03\/georganics-logo.png","contentUrl":"https:\/\/georganics.sk\/wp-content\/uploads\/2021\/03\/georganics-logo.png","width":382,"height":122,"caption":"Georganics Ltd."},"image":{"@id":"https:\/\/georganics.sk\/de\/#\/schema\/logo\/image\/"}}]}},"_links":{"self":[{"href":"https:\/\/georganics.sk\/de\/wp-json\/wp\/v2\/glossary\/34973","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/georganics.sk\/de\/wp-json\/wp\/v2\/glossary"}],"about":[{"href":"https:\/\/georganics.sk\/de\/wp-json\/wp\/v2\/types\/glossary"}],"author":[{"embeddable":true,"href":"https:\/\/georganics.sk\/de\/wp-json\/wp\/v2\/users\/6"}],"version-history":[{"count":1,"href":"https:\/\/georganics.sk\/de\/wp-json\/wp\/v2\/glossary\/34973\/revisions"}],"predecessor-version":[{"id":34974,"href":"https:\/\/georganics.sk\/de\/wp-json\/wp\/v2\/glossary\/34973\/revisions\/34974"}],"wp:attachment":[{"href":"https:\/\/georganics.sk\/de\/wp-json\/wp\/v2\/media?parent=34973"}],"wp:term":[{"taxonomy":"glossary-cat","embeddable":true,"href":"https:\/\/georganics.sk\/de\/wp-json\/wp\/v2\/glossary-cat?post=34973"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}