Annulation meaning

Annulation is the process of canceling or invalidating something previously established or agreed upon.


Annulation definitions

Word backwards noitalunna
Part of speech The part of speech of the word "annulation" is a noun.
Syllabic division an-nu-la-tion
Plural The plural form of the word "annulation" is "annulations."
Total letters 10
Vogais (4) a,u,i,o
Consonants (3) n,l,t

Annulation is a chemical reaction that involves the formation of a new ring in a molecule, resulting in the conversion of an open-chain compound into a cyclic compound. This process is commonly used in organic chemistry to synthesize various cyclic structures. Annulation reactions play a crucial role in the development of new drugs, materials, and other compounds with specific properties.

The Mechanism of Annulation

The annulation process typically involves the formation of a new bond between two carbon atoms, resulting in the closure of a ring. This can occur through various reaction mechanisms, such as intramolecular cyclization or the addition of two separate molecules to form a cyclic compound. Depending on the starting materials and conditions, different types of cyclic structures can be obtained through annulation reactions.

Applications of Annulation

Annulation reactions are widely used in the synthesis of complex organic molecules, including natural products, pharmaceuticals, and polymers. By controlling the reaction conditions and reagents, chemists can selectively form specific cyclic structures with the desired stereochemistry and functionality. This versatility makes annulation a valuable tool in organic synthesis.

Benefits of Annulation

One of the key advantages of annulation reactions is their efficiency in constructing cyclic compounds from simple starting materials. This can reduce the number of synthetic steps required to access complex molecules, ultimately saving time and resources. Additionally, annulation provides chemists with a powerful strategy to introduce structural diversity and tailor the properties of organic compounds for various applications.

In conclusion, annulation is a versatile and valuable tool in organic chemistry for synthesizing cyclic compounds with specific structures and properties. By understanding the mechanisms and applications of annulation reactions, researchers can develop new molecules with diverse functionalities and advance the fields of drug discovery, materials science, and beyond.


Annulation Examples

  1. The annulation of their marriage was finalized last month.
  2. The annulation of the contract caused tension between the two parties.
  3. She requested the annulation of the reservation due to unforeseen circumstances.
  4. The annulation of the event disappointed many attendees.
  5. The annulation of the law was met with relief from the public.
  6. He regretted the annulation of his membership at the club.
  7. The annulation of the agreement was necessary to move forward with the project.
  8. She filed for annulation of the lawsuit after reaching a settlement.
  9. The annulation of their partnership was inevitable due to conflicting goals.
  10. The annulation of the order resulted in a loss for the company.


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  • Updated 17/05/2024 - 01:04:51