PMID- 34807585 OWN - NLM STAT- MEDLINE DCOM- 20220228 LR - 20221209 IS - 1520-5126 (Electronic) IS - 0002-7863 (Print) IS - 0002-7863 (Linking) VI - 143 IP - 48 DP - 2021 Dec 8 TI - Olefination via Cu-Mediated Dehydroacylation of Unstrained Ketones. PG - 20042-20048 LID - 10.1021/jacs.1c09587 [doi] AB - The dehydroacylation of ketones to olefins is realized under mild conditions, which exhibits a unique reaction pathway involving aromatization-driven C-C cleavage to remove the acyl moiety, followed by Cu-mediated oxidative elimination to form an alkene between the alpha and beta carbons. The newly adopted N'-methylpicolinohydrazonamide (MPHA) reagent is key to enable efficient cleavage of ketone C-C bonds at room temperature. Diverse alkyl- and aryl-substituted olefins, dienes, and special alkenes are generated with broad functional group tolerance. Strategic applications of this method are also demonstrated. FAU - Zhou, Xukai AU - Zhou X AD - Department of Chemistry, University of Chicago, Chicago, Illinois 60637, United States. FAU - Xu, Yan AU - Xu Y AD - Department of Chemistry, University of Chicago, Chicago, Illinois 60637, United States. FAU - Dong, Guangbin AU - Dong G AUID- ORCID: 0000-0003-1331-6015 AD - Department of Chemistry, University of Chicago, Chicago, Illinois 60637, United States. LA - eng GR - R01 GM109054/GM/NIGMS NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't DEP - 20211122 PL - United States TA - J Am Chem Soc JT - Journal of the American Chemical Society JID - 7503056 RN - 0 (Alkenes) RN - 0 (Hydrazones) RN - 0 (Indicators and Reagents) RN - 0 (Ketones) RN - 789U1901C5 (Copper) SB - IM MH - Acylation MH - Alkenes/*chemical synthesis MH - Catalysis MH - Copper/chemistry MH - Hydrazones/chemistry MH - Indicators and Reagents/chemistry MH - Ketones/*chemistry PMC - PMC9116732 MID - NIHMS1802457 COIS- The authors declare no competing financial interests. EDAT- 2021/11/23 06:00 MHDA- 2022/03/01 06:00 PMCR- 2022/12/08 CRDT- 2021/11/22 17:11 PHST- 2021/11/23 06:00 [pubmed] PHST- 2022/03/01 06:00 [medline] PHST- 2021/11/22 17:11 [entrez] PHST- 2022/12/08 00:00 [pmc-release] AID - 10.1021/jacs.1c09587 [doi] PST - ppublish SO - J Am Chem Soc. 2021 Dec 8;143(48):20042-20048. doi: 10.1021/jacs.1c09587. Epub 2021 Nov 22.