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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...
Acidity and Basicity of Alcohols and Phenols02:36

Acidity and Basicity of Alcohols and Phenols

Like water, alcohols are weak acids and bases. This is attributed to the polarization of the O–H bond making the hydrogen partially positive. Moreover, the electron pairs on the oxygen atom of alcohol make it both basic and nucleophilic. Protonation of an alcohol converts hydroxide, a poor leaving group, into water—a good one. The two acid–base equilibria corresponding to ethanol are depicted below.
Preparation of Epoxides03:00

Preparation of Epoxides

Overview
Epoxides result from alkene oxidation, which can be achieved by a) air, b) peroxy acids, c) hypochlorous acids, and d) halohydrin cyclization.
Epoxidation with Peroxy Acids
Epoxidation of alkenes via oxidation with peroxy acids involves the conversion of a carbon–carbon double bond to an epoxide using the oxidizing agent meta-chloroperoxybenzoic acid, commonly known as MCPBA. Since the O–O bond of peroxy acids is very weak, the addition of electrophilic oxygen of peroxy acids to...
Structure and Nomenclature of Epoxides02:38

Structure and Nomenclature of Epoxides

Cyclic ethers are heterocyclic compounds with an oxygen atom in the ring along with carbon atoms. They are named depending on the number of carbon atoms present in their ring system. Cyclic ethers with a three-membered ring system are called “oxirane”, four-membered ring systems as “oxetane”, five-membered ring systems as “oxolane”, and six-membered ring systems as “oxane”. The cyclic structure of these rings imposes angle strain, and this strain is more in the ring having a smaller number of...
Structure and Nomenclature of Alcohols and Phenols02:23

Structure and Nomenclature of Alcohols and Phenols

Overview
Alcohols are one of the most important functional groups in organic chemistry. The name of alcohol comes from the hydrocarbon from which it is derived. Alcohols are organic molecules containing the functional hydroxyl or –OH group directly bonded to carbon. Phenols have an OH group directly attached to a benzene ring. While alcohols are colorless, phenol is a white crystalline compound with a characteristic "hospital smell" odor.
As with other organic compounds, alcohols and phenols...
Carboxylic Acids to Methylesters: Alkylation using Diazomethane01:33

Carboxylic Acids to Methylesters: Alkylation using Diazomethane

Carboxylic acids react with diazomethane in an ether solvent via alkylation at the carboxylate oxygen atom to give methyl esters of the corresponding acid with excellent yields.

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Related Experiment Video

Updated: Jun 5, 2026

Ethylene Polymerizations Using Parallel Pressure Reactors and a Kinetic Analysis of Chain Transfer Polymerization
07:28

Ethylene Polymerizations Using Parallel Pressure Reactors and a Kinetic Analysis of Chain Transfer Polymerization

Published on: November 27, 2015

1,2-Bis(4-amino-phen-oxy)ethane.

M Saeed Butt, Zareen Akhter, Michael Bolte

    Acta Crystallographica. Section E, Structure Reports Online
    |January 5, 2011
    PubMed
    Summary
    This summary is machine-generated.

    This study details the crystal structure of a C(14)H(16)N(2)O(2) compound, revealing its molecular conformation and stabilizing hydrogen bonds. The findings contribute to understanding molecular arrangements in crystalline solids.

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    Facile Preparation of (2Z,4E)-Dienamides by the Olefination of Electron-deficient Alkenes with Allyl Acetate
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    Facile Preparation of (2Z,4E)-Dienamides by the Olefination of Electron-deficient Alkenes with Allyl Acetate

    Published on: June 21, 2017

    Area of Science:

    • Crystallography
    • Molecular Chemistry
    • Solid-State Chemistry

    Background:

    • Understanding the precise three-dimensional arrangement of atoms within a molecule is crucial for predicting its properties and reactivity.
    • Crystal structure analysis provides fundamental insights into intermolecular interactions and solid-state behavior.

    Purpose of the Study:

    • To determine and describe the crystal structure of the title compound, C(14)H(16)N(2)O(2).
    • To analyze the molecular conformation and identify the types of intermolecular interactions present in the crystal lattice.

    Main Methods:

    • Single-crystal X-ray diffraction was employed to collect diffraction data.
    • The crystal structure was solved and refined using standard crystallographic software.

    Main Results:

    • The molecule of C(14)H(16)N(2)O(2) lies on a crystallographic twofold rotation axis.
    • The central O-C-C-O bridge exhibits a gauche conformation.
    • One amine hydrogen atom is disordered over two equally probable sites.
    • The crystal structure is stabilized by a network of N-H⋯O and N-H⋯N hydrogen bonds.

    Conclusions:

    • The detailed crystal structure of C(14)H(16)N(2)O(2) has been elucidated.
    • The observed molecular conformation and hydrogen bonding patterns provide insights into the packing and stability of the compound in the solid state.