Direct N‐Alkylation of Amines with Alcohols Catalyzed by N‐Heterocyclic Carbene Cobalt‐Pincer Catalyst under Mild Conditions

Asian Journal of Organic Chemistry, Год журнала: 2024, Номер 13(3)

Опубликована: Янв. 11, 2024

Abstract Alcohols are widely available and can be derived from renewable resources. Catalytic alcohol amination for N ‐alky amine synthesis using the borrowing hydrogen strategy is an environmentally benign prominent sustainable method, which produces water as sole byproduct. However, expensive noble metals generally employed this transformation, while nonprecious metal‐based catalysts were also known reaction have attracted considerable attention recently. Herein, efficient ‐alkylation of amines with alcohols base‐metal cobalt reported. This catalyzed by N‐heterocyclic carbene cobalt‐pincer catalyst operates simply under mild conditions. Various aniline substrates functional groups including nitrile, ether, thioether alkene could well tolerated. Moreover, experimental studies DFT calculations performed to illustrate mechanism. Our results suggest that proceeds via a autotransfer

Язык: Английский

Ruthenium catalyzed dehydrogenative α-C–H functionalization of β-naphthol using alcohols: a metal–ligand cooperative borrowing hydrogen approach

Catalysis Science & Technology, Год журнала: 2024, Номер 14(12), С. 3540 - 3549

Опубликована: Янв. 1, 2024

Chemoselective α-C–H functionalization of β-naphthol is achieved with inexpensive and readily available alcohols using a well-defined, air-stable, easy-to-prepare Ru( ii )-catalyst (1a) bearing redox-active tridentate pincer ( L 1a).

Язык: Английский

Selective C- and N-Methylation of Secondary Alcohols and Nitroaromatics with Methanol Catalyzed by a New Ru(II)-Azo Complex

Organometallics, Год журнала: 2024, Номер unknown

Опубликована: Окт. 24, 2024

Язык: Английский