1,1'-Carbonyldiimidazole丨CAS 530-62-1

1,1'-Carbonyldiimidazole丨530-62-1 is an organic compound widely used in the field of organic chemistry. It consists of two imidazole rings linked to a central carbonyl group (C=O), making it a carbonylating agent. This compound is primarily utilized for the activation of carboxylic acids and alcohols in the synthesis of esters, amides, and other carbonyl-containing derivatives. Its chemical reactivity is attributed to its ability to introduce a reactive carbonyl group into molecular structures, which can facilitate further reactions in synthetic chemistry.
Due to its high reactivity, 1,1'-Carbonyldiimidazole is useful in various applications, especially in the pharmaceutical, agrochemical, and polymer industries. It also plays a critical role in peptide synthesis, as it is commonly used in amide bond formation reactions.

1. Peptide and Protein Synthesis
1,1'-Carbonyldiimidazole is extensively used in the synthesis of peptides and proteins, particularly for the formation of amide bonds. In peptide synthesis, it serves as an activating agent for carboxylic acids, allowing them to react more readily with amines to form amides. The activation of the carboxyl group with 1,1-carbonyldiimidazole makes it a crucial reagent in the solid-phase peptide synthesis (SPPS) process.
● Peptide Synthesis: The compound is involved in the creation of peptide bonds, which are the key linkages in proteins. In this application, 1,1-carbonyldiimidazole helps reduce side reactions and increases reaction efficiency, especially when synthesizing peptides with complex sequences.
● Protein Engineering: It can be used in techniques that involve the modification or linking of amino acids or peptides to form more complex protein structures, offering more control over protein functionality and behavior.
2. Synthesis of Amides and Esters
The ability of 1,1'-Carbonyldiimidazole丨530-62-1 to activate carboxyl groups makes it an effective agent for the synthesis of amides and esters. These reactions typically involve the combination of a carboxylic acid and an amine or alcohol, respectively, in the presence of 1,1-carbonyldiimidazole to form the desired product.
● Amide Formation: In many synthetic chemistry applications, especially in drug development, amide bonds are crucial. 1,1-carbonyldiimidazole is often used to facilitate the formation of amide bonds between amine and carboxylic acid derivatives.
● Esterification Reactions: The compound can also be used in esterification reactions to synthesize esters from alcohols and carboxylic acids.
3. Activation of Carboxylic Acids
1,1'-Carbonyldiimidazole is commonly used for the activation of carboxylic acids in the synthesis of a variety of organic compounds. Activation is the process by which a less reactive carboxylic acid is converted into a more reactive species that can undergo further reactions with nucleophiles such as alcohols or amines.
● Activation for Coupling Reactions: It activates carboxylic acids to undergo coupling reactions with amines, alcohols, or other nucleophiles. The resulting products are typically amides or esters, which are useful intermediates in various chemical processes.
4. Synthesis of Biologically Active Compounds
Due to its role in forming amide and ester bonds, 1,1'-Carbonyldiimidazole is employed in the synthesis of a wide range of biologically active compounds. These compounds include pharmaceuticals, agrochemicals, and other bioactive materials that require the formation of amide or ester linkages for their function.
● Drug Synthesis: It plays a key role in the synthesis of active pharmaceutical ingredients (APIs), especially those that require the formation of specific amide linkages for bioactivity.
● Agrochemical Production: Similar to its application in pharmaceuticals, 1,1'-Carbonyldiimidazole is used in the development of pesticides and herbicides, where amide bonds or ester linkages are important components of the chemical structure.
5. Polymer Chemistry
1,1'-Carbonyldiimidazole丨530-62-1 is also used in polymer chemistry for the creation of polymeric materials that contain amide or ester functional groups. These polymers are useful in a variety of applications, including biomedical devices, coatings, and adhesives.
● Polymerization Reactions: It can be used to facilitate the formation of polymeric materials by activating carboxyl groups, allowing them to undergo polymerization with various monomers, such as amines or alcohols.
● Coatings and Adhesives: The functionalization of polymers with amide or ester groups can be crucial for adhesive properties or surface bonding in industrial applications, making 1,1'-Carbonyldiimidazole an important reagent in this area.
6. In the Synthesis of Ligands for Catalysts
1,1'-Carbonyldiimidazole can be used in the synthesis of ligands for metal catalysts, particularly for the formation of coordination complexes. These ligands are often used in catalytic reactions, including those involved in organic synthesis, such as cross-coupling reactions or hydrogenation reactions.

1. High Reactivity
1,1'-Carbonyldiimidazole丨530-62-1 is highly reactive, particularly towards carboxylic acids, making it an excellent choice for activating these compounds in various chemical reactions. Its ability to efficiently facilitate amide and ester bond formation is a significant advantage in the synthesis of biologically active molecules and other functionalized products.
2. Versatility in Synthesis
The compound's ability to activate a broad range of carboxylic acids makes it highly versatile in the synthesis of various organic molecules. It is applicable in both small-scale synthesis for research purposes and large-scale production in industrial settings.
3. Efficient and Selective Reactions
In peptide and protein synthesis, 1,1'-Carbonyldiimidazole promotes efficient and selective reactions, reducing side reactions and improving yield. This is critical in the preparation of pure peptides and other complex biomolecules, which are often required in pharmaceutical and biotechnology research.
4. Use in Peptide Bond Formation
As an essential reagent in peptide synthesis, 1,1'-Carbonyldiimidazole丨530-62-1 aids in forming peptide bonds, a crucial step in constructing proteins and peptides for research, diagnostics, and drug development. The high efficiency and minimal side reactions make it ideal for solid-phase and solution-phase peptide synthesis.
5. Improved Synthesis of Biologically Active Compounds
The compound's application in creating biologically active compounds, such as pharmaceuticals and agrochemicals, is essential for industries that rely on the creation of complex molecules. Its ability to promote amide and ester formation is a key advantage in the development of new drugs, agricultural chemicals, and other specialized materials.

1,1'-Carbonyldiimidazole丨530-62-1 is a highly valuable reagent in organic synthesis due to its ability to activate carboxylic acids for the formation of amide and ester bonds. Its primary applications lie in peptide synthesis, drug development, biological compound synthesis, and polymer chemistry. Its high reactivity, versatility, and efficiency in promoting coupling reactions make it indispensable for the synthesis of complex molecules in both pharmaceuticals and agrochemicals. By facilitating the formation of key bonds in organic chemistry, 1,1'-Carbonyldiimidazole plays an essential role in the advancement of biotechnology, materials science, and pharmaceutical manufacturing.