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- Paal–Knorr_synthesis abstract "The Paal–Knorr Synthesis in organic chemistry is a reaction that generates either furans, pyrroles, or thiophenes from 1,4-diketones. It is a synthetically valuable method for obtaining substituted furans and pyrroles, common structural components of many natural products. It was initially reported independently by German chemists Carl Paal and Ludwig Knorr in 1884 as a method for the preparation of furans, and has been adapted for pyrroles and thiophenes. Although the Paal–Knorr synthesis has seen widespread use, the mechanism wasn't fully understood until it was elucidated by V. Amarnath et al. in the 1990s.The furan synthesis requires an acid catalyst:In the pyrrole synthesis a primary amine participates:and in that of thiophene for instance the compound phosphorus pentasulfide:↑ ↑ ↑ ↑ ↑".
- Paal–Knorr_synthesis thumbnail Paal-Knorr_furan_synthesis.svg?width=300.
- Paal–Knorr_synthesis wikiPageID "6291768".
- Paal–Knorr_synthesis wikiPageLength "14444".
- Paal–Knorr_synthesis wikiPageOutDegree "46".
- Paal–Knorr_synthesis wikiPageRevisionID "686180272".
- Paal–Knorr_synthesis wikiPageWikiLink Acetal.
- Paal–Knorr_synthesis wikiPageWikiLink Amine.
- Paal–Knorr_synthesis wikiPageWikiLink Ammonium_hydroxide.
- Paal–Knorr_synthesis wikiPageWikiLink Category:German_inventions.
- Paal–Knorr_synthesis wikiPageWikiLink Category:Heterocycle_forming_reactions.
- Paal–Knorr_synthesis wikiPageWikiLink Category:Name_reactions.
- Paal–Knorr_synthesis wikiPageWikiLink Diastereomer.
- Paal–Knorr_synthesis wikiPageWikiLink Diketone.
- Paal–Knorr_synthesis wikiPageWikiLink Feist–Benary_synthesis.
- Paal–Knorr_synthesis wikiPageWikiLink Furan.
- Paal–Knorr_synthesis wikiPageWikiLink Hantzsch_pyridine_synthesis.
- Paal–Knorr_synthesis wikiPageWikiLink Hantzsch_pyrrole_synthesis.
- Paal–Knorr_synthesis wikiPageWikiLink Hydrazine.
- Paal–Knorr_synthesis wikiPageWikiLink Hydrogen_sulfide.
- Paal–Knorr_synthesis wikiPageWikiLink Knorr_pyrrole_synthesis.
- Paal–Knorr_synthesis wikiPageWikiLink Lawessons_reagent.
- Paal–Knorr_synthesis wikiPageWikiLink Ludwig_Knorr.
- Paal–Knorr_synthesis wikiPageWikiLink Microwave_chemistry.
- Paal–Knorr_synthesis wikiPageWikiLink Organic_acid_anhydride.
- Paal–Knorr_synthesis wikiPageWikiLink Organic_chemistry.
- Paal–Knorr_synthesis wikiPageWikiLink Phosphorus_pentasulfide.
- Paal–Knorr_synthesis wikiPageWikiLink Phosphorus_pentoxide.
- Paal–Knorr_synthesis wikiPageWikiLink Pyrazole.
- Paal–Knorr_synthesis wikiPageWikiLink Pyrrole.
- Paal–Knorr_synthesis wikiPageWikiLink Thioketone.
- Paal–Knorr_synthesis wikiPageWikiLink Thiophene.
- Paal–Knorr_synthesis wikiPageWikiLink Volhard–Erdmann_cyclization.
- Paal–Knorr_synthesis wikiPageWikiLink File:Knorr_pyrazole.png.
- Paal–Knorr_synthesis wikiPageWikiLink File:PKF_dione_yne.svg.
- Paal–Knorr_synthesis wikiPageWikiLink File:PK_epoxy_carbonyl.svg.
- Paal–Knorr_synthesis wikiPageWikiLink File:PK_furan_macrocycle.png.
- Paal–Knorr_synthesis wikiPageWikiLink File:PK_roseophilin.png.
- Paal–Knorr_synthesis wikiPageWikiLink File:Paal-Knorr-Furan-Synthesis_mechanism.svg.
- Paal–Knorr_synthesis wikiPageWikiLink File:Paal-Knorr-pyrrole-synthesis_mechanism.svg.
- Paal–Knorr_synthesis wikiPageWikiLink File:Paal-Knorr-thiophen-synth_mechanism.svg.
- Paal–Knorr_synthesis wikiPageWikiLink File:Paal-Knorr_Pyrrole_Synthesis.svg.
- Paal–Knorr_synthesis wikiPageWikiLink File:Paal-Knorr_furan_synthesis.svg.
- Paal–Knorr_synthesis wikiPageWikiLink File:Paal-Knorr_thiophene.svg.
- Paal–Knorr_synthesis wikiPageWikiLink File:Pyrrole_Ring.svg.
- Paal–Knorr_synthesis wikiPageWikiLinkText "Paal–Knorr synthesis".
- Paal–Knorr_synthesis name "Knorr pyrazole synthesis".
- Paal–Knorr_synthesis name "Paal-Knorr synthesis".
- Paal–Knorr_synthesis namedafter Ludwig_Knorr.
- Paal–Knorr_synthesis namedafter "Carl Paal".
- Paal–Knorr_synthesis namedafter "Ludwig Knorr".
- Paal–Knorr_synthesis type "Ring forming reaction".
- Paal–Knorr_synthesis wikiPageUsesTemplate Template:Reactionbox.
- Paal–Knorr_synthesis wikiPageUsesTemplate Template:Reactionbox_Identifiers.
- Paal–Knorr_synthesis wikiPageUsesTemplate Template:Reflist.
- Paal–Knorr_synthesis subject Category:German_inventions.
- Paal–Knorr_synthesis subject Category:Heterocycle_forming_reactions.
- Paal–Knorr_synthesis subject Category:Name_reactions.
- Paal–Knorr_synthesis hypernym Reaction.
- Paal–Knorr_synthesis type Disease.
- Paal–Knorr_synthesis type Eponym.
- Paal–Knorr_synthesis type Reaction.
- Paal–Knorr_synthesis type Redirect.
- Paal–Knorr_synthesis comment "The Paal–Knorr Synthesis in organic chemistry is a reaction that generates either furans, pyrroles, or thiophenes from 1,4-diketones. It is a synthetically valuable method for obtaining substituted furans and pyrroles, common structural components of many natural products. It was initially reported independently by German chemists Carl Paal and Ludwig Knorr in 1884 as a method for the preparation of furans, and has been adapted for pyrroles and thiophenes.".
- Paal–Knorr_synthesis label "Paal–Knorr synthesis".
- Paal–Knorr_synthesis sameAs Q899736.
- Paal–Knorr_synthesis sameAs اصطناع_بال-كنور.
- Paal–Knorr_synthesis sameAs Paal-Knorr-Synthese.
- Paal–Knorr_synthesis sameAs Síntesis_de_Paal-Knorr.
- Paal–Knorr_synthesis sameAs Synthèse_de_Paal-Knorr.
- Paal–Knorr_synthesis sameAs パール・クノール合成.
- Paal–Knorr_synthesis sameAs Paal-Knorr-synthese.
- Paal–Knorr_synthesis sameAs Synteza_Paala-Knorra.
- Paal–Knorr_synthesis sameAs Síntese_de_Paal–Knorr.
- Paal–Knorr_synthesis sameAs m.0f_myk.
- Paal–Knorr_synthesis sameAs Q899736.
- Paal–Knorr_synthesis sameAs 帕尔－克诺尔合成.
- Paal–Knorr_synthesis wasDerivedFrom Paal–Knorr_synthesis?oldid=686180272.
- Paal–Knorr_synthesis depiction Paal-Knorr_furan_synthesis.svg.
- Paal–Knorr_synthesis isPrimaryTopicOf Paal–Knorr_synthesis.
