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Related Concept Videos

Structure and Nomenclature of Ethers02:28

Structure and Nomenclature of Ethers

Structure and Bonding
Ethers are organic compounds with an ether functional group which is characterized by an oxygen atom connected to two — identical or different — alkyl, aryl, or vinyl groups. The C–O–C linkage in dimethyl ether — the simplest ether — has an approximately tetrahedral bond angle of 110.3 degrees. The oxygen atom is sp3- hybridized, with the C–O distance being about 140 pm.
Classification of Ethers
Based on their attached substituent groups, ethers can be classified into two...
Nomenclature of Alkenes02:29

Nomenclature of Alkenes

The IUPAC naming system for alkenes replaces -an- with -en- in the corresponding parent alkanes. Accordingly, a simple alkene replaces the -ane suffix of the alkane with -ene.
As per the IUPAC rules, the longest carbon chain containing the maximum number of double bonds is identified as the parent chain and is numbered such that the doubly bonded carbon atoms receive the lowest possible numbers. The location of the double bond is indicated by the number of its first carbon atom. In branched...
IUPAC Nomenclature of Ketones01:09

IUPAC Nomenclature of Ketones

Like aldehydes, ketones are named using IUPAC rules; in this case, by replacing “e” in the name of the longest hydrocarbon chain with “one.” In acyclic ketones, the ketonic carbon is given the lowest locant value. For instance, as shown below, a simple five-carbon ketone is named pentan-2-one, instead of pentan-4-one. IUPAC rules also allow the placing of the locant value before the parent name to give an alternate name, 2-pentanone.
Nomenclature of Carboxylic Acid Derivatives: Amides and Nitriles01:11

Nomenclature of Carboxylic Acid Derivatives: Amides and Nitriles

Naming Amides
The IUPAC and common names of amides are derived from the parent carboxylic acid, by replacing the suffix “oic acid” and “ic acid,” respectively, with “amide.” In the following example, the IUPAC name ethanamide is derived from ethanoic acid, and the common name, acetamide, is obtained from acetic acid.
Organic Compounds03:02

Organic Compounds

All living things are formed mostly of carbon compounds called organic compounds. The category of organic compounds includes both natural and synthetic compounds that contain carbon. Although a single, precise definition has yet to be identified by the chemistry community, most agree that a defining trait of organic molecules is the presence of carbon as the principal element, bonded to hydrogen and other carbon atoms. However, some carbon-containing compounds such as carbonates, cyanides, and...
Aldehydes and Ketones with Amines: Imine and Enamine Formation Overview01:16

Aldehydes and Ketones with Amines: Imine and Enamine Formation Overview

Primary amines react with carbonyl compounds—aldehydes and ketones—to generate imines. Imines consist of a C=N double bond and are named Schiff bases after its discoverer—the German chemist Hugo Schiff. On the other hand, secondary amines react with carbonyl compounds to give enamines. In enamines, the presence of a C=C double bond adjacent to the nitrogen atom leads to the delocalization of the lone pair.

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Facile Preparation of (2Z,4E)-Dienamides by the Olefination of Electron-deficient Alkenes with Allyl Acetate
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1-(3-Amino-1H-inden-2-yl)ethanone.

Dong-Yue Hu1, Zhi-Rong Qu

  • 1Ordered Matter Science Research Center, College of Chemistry and Chemical Engineering, Southeast University, Nanjing 210096, People's Republic of China.

Acta Crystallographica. Section E, Structure Reports Online
|May 18, 2011
PubMed
Summary
This summary is machine-generated.

A novel compound, C(11)H(11)NO, was synthesized using 2-(bromo-meth-yl)benzonitrile and acetyl-acetone. Crystal analysis revealed intermolecular hydrogen bonds forming chains, with weak C-H⋯π interactions further linking these structures.

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Area of Science:

  • Organic Chemistry
  • Crystallography
  • Supramolecular Chemistry

Background:

  • Benzonitrile derivatives are important in organic synthesis.
  • Understanding intermolecular forces is crucial for crystal engineering.
  • Acetyl-acetone is a versatile diketone ligand.

Purpose of the Study:

  • To synthesize and characterize a novel organic compound.
  • To investigate the crystal structure and intermolecular interactions.
  • To explore the potential applications of the synthesized molecule.

Main Methods:

  • Synthesis of the title compound C(11)H(11)NO via reaction of 2-(bromo-meth-yl)benzonitrile and acetyl-acetone.
  • Potassium hydroxide (KOH) used as a catalyst.
  • X-ray crystallography to determine the crystal structure and analyze intermolecular interactions.

Main Results:

  • The title compound, C(11)H(11)NO, was successfully synthesized.
  • Crystal structure analysis revealed the formation of chains through intermolecular N-H⋯O hydrogen bonds along the b axis.
  • Weak C-H⋯π interactions were observed between centrosymmetrically-related chains.

Conclusions:

  • The synthesis of the novel compound C(11)H(11)NO was achieved.
  • The crystal packing is dominated by intermolecular hydrogen bonding, forming one-dimensional chains.
  • Further weak interactions contribute to the overall crystal architecture, offering insights into molecular assembly.