N-Heterocyclic Carbene (NHC)-CO2 Adducts and NHC-HCO3 Salts [Carbon-Donor Ligands] — a collection of imidazolium CO2 adduct and hydrogencarbonate salts that serve as precursors of stable N-heterocyclic carbenes (NHC), releasing free carbene species in a controlled manner when heated or activated.
NHC-CO2 Adducts and NHC-HCO3 Salts are used by organometallic chemistry researchers as a source of carbon-donor ligands in the formation of transition metal complexes for cross-coupling catalysis, without requiring a strong base or the strictly air-free conditions of conventional imidazolium chloride salt precursors. These ligands are also used in metal-free organocatalysis studies.
Example products in this collection: TCI D5513 2893755-25-2 1,3-Di-tert-butylimidazolium Hydrogencarbonate (contains varying amounts of 1,3-Di-tert-butylimidazolium-2-carboxylate), TCI B5603 917604-39-8 1,3-Bis(2,6-diisopropylphenyl)imidazolium-2-carboxylate, TCI D5498 1372124-90-7 1,3-Diisopropylimidazolium Hydrogencarbonate (contains varying amounts of 1,3-Diisopropylimidazolium-2-carboxylate), TCI D5396 536755-29-0 1,3-Dimethylimidazolium-2-carboxylate, TCI D5401 675877-56-2 1,3-Dimesitylimidazolium-2-carboxylate.
Pay attention to the substituents on the imidazolium nitrogen (alkyl, aryl, or bulky groups such as diisopropylphenyl), as they determine the steric and electronic properties of the released carbene, as well as the variation in carboxylate species content in the products. All products are genuine Tokyo Chemical Industry (TCI) Japan products, with purity, packaging, and storage conditions listed on each item's page.
Other categories at the same level under N-Heterocyclic Carbene (NHC) Ligands [Cross-coupling Reaction using Transition Metal Catalysts], often used together in a single laboratory workflow:
Back to N-Heterocyclic Carbene (NHC) Ligands [Cross-coupling Reaction using Transition Metal Catalysts]. For large-volume procurement, special packaging, or specific grades, contact the AMI Scientific team — the official distributor of TCI Japan in Indonesia — to check availability and lead time directly from Japan.
