Control in Advanced Biofuels Synthesis via Alcohol Upgrading: Catalyst Selectivity to n-Butanol, sec-Butanol or Isobutanol

被引：3

作者：

Wingad, Richard L. ^{[1
]}

Birch, Laurence ^{[2
]}

Farndon, Joshua ^{[2
]}

Lee, Jason ^{[2
]}

Pellow, Katy J. ^{[2
]}

Wass, Duncan F. ^{[1
]}

机构：

[1] Cardiff Univ, Cardiff Catalysis Inst, Sch Chem, Main Bldg,Pk Pl, Cardiff CF10 3AT, Wales

[2] Univ Bristol, Sch Chem, Cantocks Close, Bristol BS8 1TS, England

来源：

CHEMCATCHEM | 2023年 / 15卷 / 03期

基金：

英国工程与自然科学研究理事会;

关键词：

Biofuel; Butanol; Guerbet; Catalysis; Ruthenium; ASYMMETRIC TRANSFER HYDROGENATION; ETHANOL; RUTHENIUM(II); CONVERSION; COMPLEXES; CONDENSATION; REACTIVITY;

D O I：

10.1002/cctc.202201410

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Ruthenium complexes with tetradentate PNNP donor ligands demonstrate a marked change in selectivity compared to analogous bis bidentate PN complexes in Guerbet catalysis, producing mixtures of n-butanol (17 %), sec-butanol (14 %) and ethyl acetate (66 %) rather than the usual 90 %+ selectivity to n-butanol. Tridentate PNP ruthenium complexes such as [Ru(H)(Cl)(CO)(Ph2PCH2CH2NHCH2CH2PPh2)] also produce sec-butanol and, in optimized conditions (120 degrees C, 10 mol% NaOEt base), achieve 71 % selectivity to this butanol isomer. The same tri- and tetradentate complexes are efficient catalysts for the conversion of methanol/ethanol mixtures to isobutanol (up to 97 % selectivity). In this way, judicious choice of ligand within this general catalyst family allows selectivity to three butanol isomers of interest as fuel molecules.

引用

页数：6

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