Share
Explore BrainMass

Organic Chemistry

Organic Chemistry is the examination of the structures and behaviors of carbon-based compounds. It uses both physical and chemical methods to evaluate these properties. Although it aims to study the behavior of organic substances in its purest form, it also focuses largely on organic reactions within different chemical systems, such as in solutions and mixtures. Even though Organic Chemistry is considered an isolated sub-discipline of chemistry, it is not truly distinct from Inorganic Chemistry, Physical Chemistry or General Chemistry, as it draws on concepts from each of these disciplines.

Organic Chemistry largely focuses on the study of structure, as one of the underlying principles is that structure determines behavior. Thus, by knowing an organic compounds structure, a chemist can predict its behavior under different chemical contexts. A common way to determine structure is through spectroscopy, which is the study of the electromagnetic interactions within the molecule under study. For example, analyzing the different peaks in a mass spectrum will reveal the mass-to-charge ratio and abundance of the different ions that are generated using the mass spectrometer. Thus, using analytical techniques to determine structure, property or reactivity is extremely important in the field of Organic Chemistry.

Since organic compounds form the basis of all life on Earth, the applicability of Organic chemistry is not limited to the laboratory – it also heavily extends into the fields of industry, agriculture, medicine and even botany. Thus, studying Organic Chemistry is essential for the prediction of organic chemical behavior. 

Categories within Organic Chemistry

Acid and Base Organic Chemistry

Postings: 369

An organic acid is a carbon-based compound with acidic properties, while an organic base is a carbon-based compound with basic properties.

Organic Chemistry Bonding

Postings: 294

In Organic Chemistry, Bonding refers to the process of a carbon-based molecule forming a chemical bond due to the attractive interactions between two atoms.

Organometallic Chemistry

Postings: 32

Organometallic Chemistry is the examination of the structures and properties of chemical substances which contain covalent-character bonds between carbon and a metal.

Some synthesis problems of alcohols

This is Organic Chemistry SYNTHESIS, so please you need to show each step from start to finish, to synthesize the finished product from the starting material.

One exception in organic nomenclature

The priority of amine is higher than alkene still the compound above uses hexene as suffix name? What are then priority used for? And how does one determine the rank of the suffix ending? Do you have a general table or explanation? (see attached table)

Rate of Electrophilic Substitution

Hi halogenation of benzene happens fast while alkylation happens slow. Why is it so? The question is described in the attachment please go there for the whole question. Thanks! Since you wanted to help out. I am sending you this. Thanks!

Energy Diagram: Kinetic vs. Thermodynamic Products

I am trying to draw an energy diagram for the methone to -/-menthol & +/-neomenthol. It is a redox reaction but is it also an SN2 reaction? Product is slightly in favour to -/- menthol, does this mean -/-menthol is thermodynamically favourable to +/-neomenthol How do I determine which is more kinetically favoured?

hplc

In HPLC, how often should I need to run standard with samples? Why? If the retention time is changed with real samples compared to standard, how can I determine if the peak with changed retention time is samples are actually compounds A and B?

caffeine

The samples 75mL of coffee (Sample A) and tea (Sample B) were run. Determine the amount of caffeine/mL in a cup of tea or coffee and then the total amount of caffeine in a cup of 200mL. Are there difference between the values at the two different wavelengths and why might this be the case? Explain the result: linear equation ar

stationary phase

What types of stationary phases used for column chromatography and HPLC? How these staionary phase work and what types of compounds can be separated using this? What are the difference in the stationary phases used for column chromatography and HPLC? Why are they difference and why do not use the materials in HPLC for making low

Assorted questions on aromatics and grignards

1. Give the structures of all possible products when 3-bromopentane reacts by the E2 mechanism. 2. Ethers and alcohols can be isomeric. Write the structures, and give names for all possible isomers with the molecular formula C4H10O. 3. Using a Grignard reagent and the appropriate aldehyde or ketone, show how each of the

Assorted Alkene Reactions

Hi. I'd like to check answers to some things before my final. I like handwritten work because it really helps me with the thought processes, like taking a test. 1. Write an equation for the sequential hydroboration and H2O2/OH ̄ oxidation of 4-ethyl-3- heptene. 2. Indicate the main monosubstitution products in each o

Organic chemistry questions

I completed this assignment but have no idea if it's correct and its stressing me out. I don't need #1 but if you could help me understand the rest, that would be great! Thanks

Enantiometrically pure retrosynthesis

There are many ways of making (R)3-ethyl-4-methylpent-1-yne. Explain what enantiomerically pure retrosynthesis is and show the enantiometrically pure retrosynthesis of this alkyne via a substitution mechanism.

Calculating percentage yield of reactions

See the attachment for all of the organic chemistry questions. The first one is concerning calculating percentage yield of a reaction, with the molecule drawings included.

Recrystallization

The goal of the recrystallization procedure is to obtain purified material with a maximum recovery. For each of the following situations, explain why this goal would be adversely affected. a) In the solution step, an unnecessarily large volume of solvent is used. b) The crystals obtained after filtration are not washed with

Synthesis Questions

Can you please explain these problems we don't have a book for my class and I haven't had any luck searching around online or from my physical organic book. Please let me know if you can do these?! 1.) Which form of molecule A is the most stable (1, 2, or 3)? Provide a graphical (i.e. figures not graphs) provide an explanatio

nomenclature of alkanes and alkenes

this solution describes how to name alkanes and alkenes . It was originally part of my ebook EVERYTHING YOU NEED TO KNOW ABOUT CHEMICAL NOMENCLATURE. If you want more information or a more complete description to include inorganic compounds please see the ebook section of this website.

Chemical Compounds and Equations

(a) The equation below shows the final product in the reaction of propan-1-ol with potassium permanganate in acidic solution. Draw the structure of the compound that forms initially in this reactionn. (see attached file for formula) (b) Complete the following equation by drawing the structure of the organic compound that w

Solid Phase Extraction

Calculate the % difference for caffeine and standard deviation using your method so i can compare it to my lab partners results.

Retrosynthetic reaction

(a) (i) Provide a retrosynthetic analysis of the enamine below in order to identify the starting ketone and amine. Please see the attached document for the diagram. (ii) Write a reaction mechanism to explain the formation of the enamine under acidic reaction conditions from the ketone and pyrrolidine. (b) (i) Write

Orbital analysis

(a) The pericyclic reaction shown below is an example of the Cope rearrangement. (i) Classify the sigmatropic rearrangement as an [n,n]-sigmatropic rearrangement, where n is an integer. Show how the classification is arrived at as part of your answer. Please see the attached document for the diagram. (ii) An incomplet