In situ catalytic activities of 1,3-dialkyltetrahydropyrimidinium salts/[RuCl_2(p-cymene)]_2 system for transfer hydrogenation reactions

Authors: EMİNE ÖZGE ÖZCAN, DENİZ MERCAN, NEVİN GÜRBÜZ, ENGİN ÇETİNKAYA, BEKİR ÇETİNKAYA, İSMAİL ÖZDEMİR

Abstract: Hydrogen-transfer reduction processes are attracting increasing interest from synthetic chemists in view of their operational simplicity. In the present study novel ruthenium carbene complexes were generated in situ and tested for their transfer hydrogenation reactions. The in situ prepared 3 component 1,3-dialkyltetrahydropyrimidinium salts (LHX)/[RuCl_2(p-cymene)]_2 and KOH catalyzed quantitatively the transfer hydrogenation of ketones under mild reaction conditions in 2-propanol.

Keywords: Ruthenium, tetrahydropyrimidin-2-ylidene, N-heterocyclic carbene, transfer hydrogenation, ketone

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