Related Experiment Video

Updated: Oct 12, 2025

A Free-breathing fMRI Method to Study Human Olfactory Function
10:42

A Free-breathing fMRI Method to Study Human Olfactory Function

Published on: July 30, 2017

9.8K

Scientific opinion on flavouring group evaluation 414 (FGE.414): 2-hydroxy-4-methoxybenzaldehyde

, Maged Younes, Gabriele Aquilina

    EFSA Journal. European Food Safety Authority
    |November 22, 2021
    PubMed

    Keywords:
    2‐hydroxy‐4-methoxybenzaldehydeFGE.414FL‐no: 05.229

    More Related Videos

    Author Spotlight: Exploring Tea Aroma Using Solvent-Assisted Flavor Evaporation Technique04:36

    Author Spotlight: Exploring Tea Aroma Using Solvent-Assisted Flavor Evaporation Technique

    Published on: May 26, 2023

    3.7K
    Synthesis of Esters Via a Greener Steglich Esterification in Acetonitrile06:52

    Synthesis of Esters Via a Greener Steglich Esterification in Acetonitrile

    Published on: October 30, 2018

    36.6K

    Related Concept Videos

    Overview of Advanced Functional Groups02:22

    Overview of Advanced Functional Groups


    Functional groups are groups of atoms with specific chemical properties that occur within organic molecules and are sometimes denoted as “R”. Functional groups can “functionalize” a compound by enabling it to adopt different physical and chemical properties.
    Types of Advanced Functional Groups
    The table below summarizes some of the major functional groups in organic chemistry.
    27.0K
    Structures of Aldehydes and Ketones01:04

    Structures of Aldehydes and Ketones

    Vanillin—a flavoring agent in vanilla, cinnamaldehyde—a molecule responsible for the distinct smell of cinnamon, and acetone—a strong-smelling ingredient in nail polish removers, all belong to a class of carbonyl compounds called aldehydes and ketones (Figure 1). Although both aldehydes and ketones contain the characteristic carbonyl (C=O) bond, their chemical structures vary with respect to the groups directly attached to the carbonyl carbon.
    In aldehydes (Figures 1a and 1b),...
    10.3K
    ortho–para-Directing Activators: –CH3, –OH, –⁠NH2, –OCH301:11

    ortho–para-Directing Activators: –CH3, –OH, –⁠NH2, –OCH3

    All ortho–para directors, excluding halogens, are activating groups. These groups donate electrons to the ring, making the ring carbons electron-rich. Consequently, the reactivity of the aromatic ring towards electrophilic substitution increases. For instance, the nitration of anisole is about 10,000 times faster than the nitration of benzene. The electron-donating effect of the methoxy group in anisole activates the ortho and para positions on the ring and stabilizes the corresponding...
    6.6K
    Introduction to Functional Groups02:08

    Introduction to Functional Groups


    Functional groups are group of atoms with specific chemical properties that occur within organic molecules and sometimes denoted as “R”. Functional groups are found along the carbon backbone of macromolecules can form chains or rings of carbon atoms. Functional groups can “functionalize” a compound by enabling it to adopt different physical and chemical properties.  
    Types of common functional groups
    The table below summarizes some of the major functional...
    31.6K
    Protecting Groups for Aldehydes and Ketones: Introduction01:23

    Protecting Groups for Aldehydes and Ketones: Introduction

    Protecting groups are compounds that can bind to a specific functional group in the presence of other functional groups to protect them from undesired chemical reactions. These compounds can selectively bind to particular functional groups and advance chemoselective reactions in polyfunctional systems (Figure 1). After the functional group has served its purpose, it is removed by reacting it with specific compounds.
    7.8K
    NMR Spectroscopy of Benzene Derivatives01:34

    NMR Spectroscopy of Benzene Derivatives

    Simple unsubstituted benzene has six aromatic protons, all chemically equivalent. Therefore, benzene exhibits only a singlet peak at δ 7.3 ppm in the 1H NMR spectrum. The observed shift is far downfield because the aromatic ring current strongly deshields the protons. Any substitution on the benzene ring makes the aromatic protons nonequivalent, and the protons split each other. The peak is, therefore, no longer a singlet and the splitting pattern and their associated coupling...
    9.2K