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In this work, we show that catalytic hydrogenations of \u03b1,\u03b2-unsaturated esters and carbonyl compounds are realized by a copper(I) complex constructed from a bifunctional N-heterocyclic carbene complex bearing a 2-iminopyridine subunit. The highly active catalyst allows for practical catalytic hydrogenations at low H2 pressure, in standard laboratory glassware, reaching balloon pressure. The protocol displays high chemoselectivity as functional groups such as halides, nitro groups, amides, and heterocycles are tolerated. Mechanistic experiments, including isotope labeling studies, are consistent with a proximity-induced proton transfer step facilitated by the bifunctional catalyst.<\/jats:p>","DOI":"10.1021\/acs.orglett.6c03165","type":"journal-article","created":{"date-parts":[[2026,9,2]],"date-time":"2026-09-02T06:36:26Z","timestamp":1788330986000},"page":"11258-11263","source":"Crossref","is-referenced-by-count":0,"title":["Low-Pressure\nHydrogenation of Enoates and Carbonyl\nCompounds with a Bifunctional Copper(I)\/NHC Catalyst"],"prefix":"10.1021","volume":"28","author":[{"given":"Mahadeb","family":"Gorai","sequence":"first","affiliation":[{"name":"Technische Universita\u0308t Chemnitz , , ,","place":["Chemnitz, Germany, 09111"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0002-2623-1571","authenticated-orcid":true,"given":"Maximilian","family":"Voigtla\u0308nder","sequence":"additional","affiliation":[{"name":"Technische Universita\u0308t Chemnitz , , ,","place":["Chemnitz, Germany, 09111"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Giriraj","family":"Pal","sequence":"additional","affiliation":[{"name":"Technische Universita\u0308t Chemnitz , , ,","place":["Chemnitz, Germany, 09111"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1043-8092","authenticated-orcid":true,"given":"Johannes F.","family":"Teichert","sequence":"additional","affiliation":[{"name":"Technische Universita\u0308t Chemnitz , , ,","place":["Chemnitz, Germany, 09111"]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"316","published-online":{"date-parts":[[2026,8,28]]},"reference":[{"key":"2026091110064690500_cit1","doi-asserted-by":"publisher","DOI":"10.1002\/9783527619382","volume-title":"The Handbook\nof Homogeneous Hydrogenation","author":"De Vries","year":"2006","edition":"1"},{"key":"2026091110064690500_cit2","volume-title":"Organotransition Metal\nChemistry: From Bonding to Catalysis","author":"Hartwig","year":"2010"},{"key":"2026091110064690500_cit3","doi-asserted-by":"publisher","DOI":"10.1002\/9783527699087","volume-title":"Non-Noble Metal\nCatalysis: Molecular Approaches and Reactions","author":"Klein Gebbink","year":"2019","edition":"1"},{"key":"2026091110064690500_cit4","volume-title":"Homogeneous Hydrogenation\nwith Non-Precious Catalysts","author":"Teichert","year":"2020"},{"issue":"4","key":"2026091110064690500_cit5","doi-asserted-by":"publisher","first-page":"2089","DOI":"10.1021\/acs.chemrev.9b00076","article-title":"Introduction:\nFirst Row Metals and Catalysis","volume":"119","author":"Beller","year":"2019","journal-title":"Chem. 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