Review of Short Phrases and Links|
This Review contains major "Acyl Halide"- related terms, short phrases and links grouped together in the form of Encyclopedia article.
- An acyl halide (also known as an acid halide) is a chemical compound derived from an oxoacid by replacing a hydroxyl group with a halide group.
- The acyl halide is preferably an acyl chloride and more preferably acetyl chloride.
- Again it is preferred to first protect any hydroxy or amino substituents before converting the benzoic acid to the acyl halide.
- A molecule can have more than one acyl halide functional group.
- Reagent: normally the acyl halide (e.g.
- You would need acetic anhydride, or perhaps the acyl halide to form the amide (with possible surrogate base to mop up the acid by product).
- The Friedel-Crafts acylation reagent is normally composed of an acyl halide or anhydride mixed with a Lewis acid catalyst such as AlCl 3.
- Reactions Acid anhydrides are a source of reactive acyl groups, and their reactions and uses resemble those of acyl halide s.
- Conversion is readily achieved by reacting the 1-hydroxy compound with an alkyl halide or an acyl halide in the presence of a hydrogen chloride acceptor.
- Figure 3 Reaction of an aromatic compound with an acyl halide and a Lewis Acid Figure 4 The electrophile is an acylium ion.
- The RCO- group in an acyl halide can be thought of as an acyl group and the -X radical as the halide part of the molecule; for example, -Cl is chloride.
- It belongs to the class of organic compound s called acyl halide s.
- Acyl chlorides are a subset of acyl halides and undergo many of the chemical reactions mentioned under Acyl halide.
- For example, if the acyl halide is an acyl chloride, HCl (hydrogen chloride or hydrochloric acid) is also formed.
- Similar to acids and amides, the carbon atom of the acyl halide will be atom number 1 in the numbering scheme.
- In a particular embodiment, the lower alcohol is ethanol and the acyl halide is acetyl chloride.
- For further information on the types of chemical reactions compounds such as acetyl chloride can undergo, see acyl halide.
- The acylation may be performed using the acyl halide, for instance, the acyl chloride or acyl bromide, in the presence of a suitable base.
- However there are certain limitations: The halide must be either an alkyl halide or an acyl halide.
- Acyl halide An acyl or acid halide is a chemical compound derived from an acid by replacing a hydroxyl group with a halide group.
- This may be effected by acylation, for example by reacting the compound (XLIII) with an acylating agent, such as: an acyl halide, e.g.
- For the reactions of thionyl chloride or acyl chlorides with water, see thionyl chloride or acyl halide.
- Acyl Halides > Acyl Chlorides
- Acetyl Chloride
- Chemical Compound
- Hydroxyl Group
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