NDA@SZTAKI

Unexpectedly fast catalytic transfer hydrogenation of aldehydes by formate in 2-propanol–water mixtures under mild conditions

SzatmĂĄri, Imre

Papp, GĂĄbor

JoĂł, Ferenc

Kathó, Ágnes

Elsevier

2014

QD Chemistry / kĂŠmia

QD02 Physical chemistry / fizikai kĂŠmia

QD03 Inorganic chemistry / szervetlen kĂŠmia

Unsaturated aldehydes were efficiently reduced by transfer hydrogenation from sodium formate in water–2-propanol mixtures using a water-soluble Ru(II)-tertiary phosphine catalyst. The reaction yielded unsaturated alcohols with complete selectivity and without hydrogenation or isomerization of C=C bonds of the substrates. Very high reaction rate was observed in the transfer hydrogenation of cinnamaldehyde already at 30 ◦C with turnover frequency of 160 h−1 and this increased to 3800 h−1 at 70 ◦C. Consequently, the method is applicable to the synthesis of unsaturated alcohols in case of heat sensitive or highly volatile aldehydes, too. Based on multinuclear NMR investigations, trans-[RuH2(H2O)(mtppms)3] is suggested as the key catalytic species.

magyar

Article

PeerReviewed

info:eu-repo/semantics/article

text

http://real.mtak.hu/14929/1/1-s2.0-S0920586114004465-main.p...

Szatmári, Imre and Papp, Gábor and Joó, Ferenc and Kathó, Ágnes (2014) Unexpectedly fast catalytic transfer hydrogenation of aldehydes by formate in 2-propanol–water mixtures under mild conditions. Catalysis Today, 247. pp. 14-19. ISSN 0920-5861

http://real.mtak.hu/14929/

DOI: 10.1016/j.cattod.2014.06.023