Outputs - D-Carbonize

D6.1 - Website Twitter and LinkedIn accounts live

17/10/2025

Public deliverable.

The document describes the motivation behind the concept of the website and the objectives as a key tool for dissemination and communication actions. The document provides a description of the public site, defining also the social media tools used, such us Twitter and LinkedIn.

Read the deliverable here.

D4.2 - Network-wide training events report - R1

17/10/2025

Public deliverable

The document describes the activities carried out during the first D-Carbonize Workshop & kick-off meeting co-organized by ICIQ and RUG (24-25 January, Tarragona, Spain).

Read the deliverable here.

D4.3 - Network-wide training events reports - R2

17/10/2025

Public deliverable.

The document describes the activities carried out during the second D-Carbonize Workshop organized by UISCR-CNRS (14-15 October, Rennes, France).

Read the deliverable here.

Domino Synthesis of Functionalized Cyclic Acetals From Organic Carbonates

04/12/2025

Natalia Kulbacka - DC1

We report a method for the base-mediated transformation of ether-tethered acrylic ester-based cyclic carbonates into functionalized cyclic acetals. The protocol builds on the use of hydroxyalkyl-substituted cyclic carbonates that undergo an oxa-Michael addition reaction in the presence of alkyl propiolates thereby forging (E)-configured acrylic ether intermediates. The scope of the reaction involves the use of both five- and six-membered cyclic carbonates, and correspondingly, both five- andsix-membered cyclic acetals can be prepared. The amount of reagents, the purification method, and the type of ester substrate all contribute to the efficiency of the transformation. Mechanistic control reactions point at the intermediacy of an alkoxide that induces an intramolecular Michael addition onto the acrylic double bond following alkoxide-mediated formation of both an alcohol and ester in the final product. These functional groups, among others, further enable easy diversification of acetal-based synthons.

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Enabling a Diversity-Oriented Catalytic Atom Looping of a Biobased Polycarbonate

06/10/2025

Enrico Lanaro - DC1

Herein, it is demonstrated that biobased poly(menthene carbonate) (PMC) can be conveniently used to enable catalysis-promoted atom looping thereby creating functionalized synthons and new types of repolymerizable monomers. The biobased polycarbonate undergoes chemoselective depolymerization in the presence of a bicyclic guanidinium providing under distinct reaction conditions and concentrations high-yield and selective access to either menthene oxide (MO), menthene carbonate (MC), or menthene diol (MD). These latter depolymerization products further enable the valorization of the original polymer atoms into several functionalized, partially biobased building blocks by integrating a monomer-and-molecular loop approach. As a proof-of-principle, four distinct scaffolds were converted into novel (bifunctional) monomers with potential to create a wider series of macromolecules. This work exemplifies a unique and holistic catalytic reuse of polymer atoms accommodating an on-demand preparation of fine-chemical precursors, repolymerizable monomers, and new monomer precursor designs.

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Palladium-catalyzed methoxycarbonylation of a commodity CO2-sourced δ-valerolactone

07/10/2025

Hussein Tabaja - DC7

The methoxycarbonylation of 3-ethylidene-6-vinyltetrahydro-2H-pyran-2-one (EVP), a commodity δ-valerolactone prepared by telomerization of CO₂ with butadiene, is reported. The py^tbpx ligand proved instrumental to achieve successful formation of the new carbonylation product.

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