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Gholap SS, Dakhil AA, Chakraborty P, Dighe S, Rahman MM, Dutta I, Hengne A, Huang KW. Efficient and chemoselective imine synthesis catalyzed by a well-defined PN 3-manganese(II) pincer system. Chem Commun (Camb) 2024; 60:2617-2620. [PMID: 38351877 DOI: 10.1039/d3cc05892a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/21/2024]
Abstract
The highly efficient reductive amination of aldehydes with ammonia (NH3) and hydrogen (H2) to form secondary imines is described, as well as the dehydrogenative homocoupling of benzyl amines. Using an air-stable, well-defined PN3-manganese(II) pincer complex as a catalyst precursor, various aldehydes are easily converted directly into secondary imines using NH3 as a nitrogen source under H2 in a one-pot reaction. Importantly, the same catalyst facilitates the dehydrogenative homocoupling of various benzylamines, exclusively forming imine products. These reactions are conducted under very mild conditions, without the addition of any additives, yielding excellent selectivities and high yields of secondary imines in a green manner by minimizing wastes.
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Affiliation(s)
- Sandeep Suryabhan Gholap
- KAUST Catalysis Center and Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia.
| | - Abdullah Al Dakhil
- KAUST Catalysis Center and Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia.
- Department of Chemistry, College of Science, Imam Mohammad Ibn Saud Islamic University, Riyadh 11432-5701, Saudi Arabia
| | - Priyanka Chakraborty
- KAUST Catalysis Center and Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia.
| | - Shashikant Dighe
- Agency for Science, Technology and Research, Institute of Materials Research and Engineering and Institute of Sustainability for Chemicals, Energy and Environment, Singapore
| | - Mohammad Misbahur Rahman
- KAUST Catalysis Center and Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia.
| | - Indranil Dutta
- KAUST Catalysis Center and Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia.
| | - Amol Hengne
- Agency for Science, Technology and Research, Institute of Materials Research and Engineering and Institute of Sustainability for Chemicals, Energy and Environment, Singapore
| | - Kuo-Wei Huang
- KAUST Catalysis Center and Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia.
- Agency for Science, Technology and Research, Institute of Materials Research and Engineering and Institute of Sustainability for Chemicals, Energy and Environment, Singapore
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Padilla R, Ni Z, Mihrin D, Wugt Larsen R, Nielsen M. Catalytic Base‐Free Transfer Hydrogenation of Biomass Derived Furanic Aldehydes with Bioalcohols and PNP Pincer Complexes. ChemCatChem 2022. [DOI: 10.1002/cctc.202200819] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Affiliation(s)
- Rosa Padilla
- Department of Chemistry Technical University of Denmark Kemitorvet 207 Building 206 Denmark
| | - Zhenwei Ni
- Department of Chemistry Technical University of Denmark Kemitorvet 207 Building 206 Denmark
| | - Dmytro Mihrin
- Department of Chemistry Technical University of Denmark Kemitorvet 207 Building 206 Denmark
| | - René Wugt Larsen
- Department of Chemistry Technical University of Denmark Kemitorvet 207 Building 206 Denmark
| | - Martin Nielsen
- Department of Chemistry Technical University of Denmark Kemitorvet 207 Building 206 Denmark
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