Diketene, with the CAS number 674-82-8, is a highly reactive organic compound characterized by its unique structure, which features a cyclic diketone. It is a colorless to yellowish liquid with a pungent odor, and it is known for its ability to undergo various chemical reactions, including cycloaddition and acylation. Diketene is primarily used in the synthesis of acetic anhydride and various other chemical intermediates, particularly in the production of pharmaceuticals, agrochemicals, and dyes. Due to its reactivity, it can form adducts with nucleophiles, making it valuable in organic synthesis. However, it is also important to handle diketene with care, as it can be hazardous; it is corrosive and can cause irritation to the skin, eyes, and respiratory system. Proper safety measures, including the use of personal protective equipment and adequate ventilation, are essential when working with this compound. Overall, diketene is a versatile reagent in organic chemistry, facilitating the formation of a wide range of chemical products.

Diketene

674-82-8: 3-Butenoic acid, 3-hydroxy-, β-lactone, 4-Methylene-2-oxetanone, But-3-En-3-Olido, But-3-Ene-3-Olide, But-3-en-3-olid, But-3-en-3-olide, Diketen, Diketene, Ethenone, dimer, Ketene dimer, Nsc 93783,  DK, 2-Oxetanone, 4-methylene-,  4-methylideneoxetan-2-one,  but-1-ene-1,3-dione,  Ketenedimer,99%,  Acetyl ketene

CAS 674-82-8: Diketene

Diketene

Ref: 4Z-D-218001