Publications de Songlan Sun | EPFL Graph Search

Size‐Selective Functionalization of Sugars and Polyols Using Zeolites for Renewable Surfactant Production

Esther Amstad, Jeremy Luterbacher, Songlan Sun, Seongmin Jin

Diol functionalization with acetals in carbohydrates and polyols is ubiquitously used in protection chemistry and in the manufacture of several platform chemicals. However, the selective functionalization of molecules where multiple acetalization reactions ...

Wiley2025

Aldehyde-Stabilization Strategies for Building Biobased Consumer Products around Intact lignocellulosic Structures

Jeremy Luterbacher, Songlan Sun, Lorenz Perry Manker

Dwindling fossil resources and their associated environmental concerns have increased interest in biobased products. In particular, many approaches to convert lignocellulosic biomass into small-molecule building blocks are being explored via thermal, chemi ...

AMER CHEMICAL SOC2025

Operando Monitoring of Delignification Processes Using 2D 1H-13C HSQC NMR

Jeremy Luterbacher, Aurélien Bornet, Songlan Sun

American Chemical Society (ACS)2025

Design and Synthesis of Bio-based Amphiphiles from Lignocellulosic Biomass

Songlan Sun

In the pursuit of a carbon-neutral chemical industry, minimizing fossil feedstock consumption while integrating renewable carbon sources is imperative. Surfactants, inherently amphiphilic, pose challenges in separation and recovery processes. Given their e ...

EPFL2024

Biobased surfactant

Jeremy Luterbacher, Songlan Sun, Stefania Bertella, Anastasiia Komarova

The present invention relates to a compound of the general formula (I), and (II)wherein one of R11 and R12 is hydrogen and the other is -CH2-R70, and one of R13 and R14 is hydrogen and the other is -CH2-R71, or wherein one of R11 and R12 is hydrogen and th ...

2024

Method for preparing an at least partially acetal-protected sugar

Jeremy Luterbacher, Songlan Sun, Lorenz Perry Manker, Anastasiia Komarova

The present invention relates to a method for preparing an at least partially acetal-protected sugar involving the step of reacting a sugar or a sugar derivative selected from the group consisting of an aldopentose, an aldohexose, an aldopentoside and an a ...

2024

Biobased surfactant

Jeremy Luterbacher, Songlan Sun, Stefania Bertella, Anastasiia Komarova

The present invention relates to a compound of the general formula (I), (II) and (III), more specifically of formula (Ia), (Ib), (Ic)wherein R11 and R12 or R21 and R22 or R31 and R32 are both hydrogen or form together with CHR50 a cyclic moiety or one of R ...

2024

Integrated Conversion of Lignocellulosic Biomass to Bio-Based Amphiphiles using a Functionalization-Defunctionalization Approach

Esther Amstad, Jeremy Luterbacher, Songlan Sun, Gaia De Angelis, Stefania Bertella, Graham Reid Dick

Concerns over the sustainability and end-of-life properties of fossil-derived surfactants have driven interest in bio-based alternatives. Lignocellulosic biomass with its polar functional groups is an obvious feedstock for surfactant production but its use ...

Wiley-VCH Verlag GmbH2023

Biobased surfactants

Jeremy Luterbacher, Songlan Sun, Stefania Bertella, Anastasiia Komarova

Compound of the general formula (Ia), (Ib) and (Ic) R50 and R60 are different form each other and are selected from the group consisting of -R70, -ZR70, -Z-OH, -Z-NH2, -Z-SH, -Z-OC(O)R70, -OC(O)R70, - COOH and its corresponding salts, -C(O)NH2, -C(O)NH-R70 ...

2023

Sinter-Resistant Nickel Catalyst for Lignin Hydrogenolysis Achieved by Liquid Phase Atomic Layer Deposition of Alumina

Jeremy Luterbacher, Songlan Sun, Farzaneh Talebkeikhah

Lignin hydrogenolysis is a key step in the sustainable production of renewable bio-based chemicals and fuels. Heterogeneous metal catalysts have led to high yields but they rapidly deactivate, notably due to nanoparticle sintering and carbonaceous deposit ...

2023