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Carboxylic Acids to Methylesters: Alkylation using Diazomethane01:33

Carboxylic Acids to Methylesters: Alkylation using Diazomethane

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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.
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Acyclic diene metathesis polymerization or ADMET polymerization involves cross-metathesis of terminal dienes, such as 1,8-nonadiene, to give linear unsaturated polymer and ethylene. As ADMET is a reversible process, the formed ethylene gas must be removed from the reaction mixture to complete the polymerization process.
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Nomenclature of Alkynes02:39

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Alkynes are unsaturated hydrocarbons characterized by the presence of carbon-carbon triple bonds and have a general formula CnH2n-2. The nomenclature of alkynes follows a set of rules similar to alkanes and alkenes; however, alkynes bear the suffix "-yne" instead of "-ane" or "-ene." There are two approaches to naming alkynes:
meta-Directing Deactivators: –NO2, –CN, –CHO, –⁠CO2R, –COR, –CO2H01:13

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All meta-directing substituents are deactivating groups. These substituents withdraw electrons from the aromatic ring, making the ring less reactive toward electrophilic substitution. For example, the nitration of nitrobenzene is 100,000 times slower than that of benzene because of the deactivating effect of the nitro group. The first step in an electrophilic aromatic substitution is the addition of an electrophile to form a resonance-stabilized carbocation. The energy diagrams for the...
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Protocol for the Synthesis of Ortho-trifluoromethoxylated Aniline Derivatives
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(Methyl-enedinitrilo)tetra-acetonitrile.

Xiang-Hua Song1, Mei-Li Feng, Kai Wang

  • 1Department of Applied Chemistry, College of Science, Nanjing University of Technology, Nanjing 210009, People's Republic of China.

Acta Crystallographica. Section E, Structure Reports Online
|May 18, 2011
PubMed
Summary

The molecular structure of C(9)H(10)N(6) features four cyano-methyl groups around a central N-CH(2)-N core. Molecules form a 3D network through intermolecular hydrogen bonds in the crystal structure.

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Area of Science:

  • Crystallography
  • Molecular Chemistry

Background:

  • Understanding the crystal packing and intermolecular interactions of novel organic compounds is crucial for materials science.
  • The N-CH(2)-N linkage offers potential for diverse chemical modifications and applications.

Purpose of the Study:

  • To elucidate the molecular and crystal structure of the title compound, C(9)H(10)N(6).
  • To investigate the intermolecular interactions governing the solid-state arrangement.

Main Methods:

  • Single-crystal X-ray diffraction was employed to determine the molecular and crystal structure.
  • Analysis of intermolecular interactions, including hydrogen bonding, was performed.

Main Results:

  • The molecular structure reveals four cyano-methyl groups attached to a central N-CH(2)-N unit.
  • Crystal structure analysis confirmed the formation of a three-dimensional network facilitated by intermolecular C-H⋯N hydrogen bonds.

Conclusions:

  • The study successfully characterized the molecular and crystal structure of C(9)H(10)N(6).
  • The observed hydrogen bonding network provides insights into the self-assembly behavior of this compound in the solid state.