Sulfur ions | Sulfonium compounds
S-Methylmethionine (SMM) is a derivative of methionine with the chemical formula (CH3)2S+CH2CH2CH(NH3+)CO2−. This cation is a naturally-occurring intermediate in many biosynthetic pathways owing to the sulfonium functional group. It is biosynthesized from L-methionine which is first converted to S-adenosylmethionine. The subsequent conversion, involving replacement of the adenosyl group by a methyl group is catalyzed by the enzyme methionine S-methyltransferase. S-methylmethionine is particularly abundant in plants, being more abundant than methionine. S-Methylmethionine is sometimes referred to as vitamin U, but it is not considered a true vitamin. The term was coined in 1950 by Garnett Cheney for uncharacterized anti-ulcerogenic factors in raw cabbage juice that may help speed healing of peptic ulcers. (Wikipedia).
Nitration of MethylBenzoate and Nitration of Bromobenzene
This organic chemistry video tutorial discusses the reaction mechanism of the nitration of methylbenzoate and the nitration of bromobenzene. Subscribe: https://www.youtube.com/channel/UCEWpbFLzoYGPfuWUMFPSaoA?sub_confirmation=1 Access to Premium Videos: https://www.patreon.com/MathScienc
From playlist New Organic Chemistry Playlist
Acylation of benzene || 3d Video Animation || Education
Acylation of benzene || 3d Video Animtaion || Education the mechanism for the c acyation of benzene involving an electrophilic substitution reaction between benzene and ethanoyl chloride in the presence of an aluminium chloride catalyst. The Friedel–Crafts acylation was first discovered i
From playlist Chemistry Topics
This was reuploaded because I made a mistake and claimed that there was a charge separation in methyl iodide due to electronegativity. ------------------------------------------- Today we are making some anisole! Anisole itself doesn't have many direct applications, and it's mostly used a
From playlist Odors
REUPLOAD - Make 2-(p-chlorophenyl)-3-oxopentanenitrile - Step 5 in Pyrimethamine Synthesis
In this video we make 2-(p-chlorophenyl)-3-oxopentanitrile which is step 5 in our synthesis of Pyrimethamine Related videos: Drying alcohol: https://www.youtube.com/watch?v=NMfs3e9OdZQ Making sodium metal with domestically available chemicals: https://www.youtube.com/watch?v=jCrFFVVcPU
From playlist Pyrimethamine
Aspirin to Acetaminophen - Part 6 of 6: Acetaminophen from p-aminophenol
This is the final part of the series, where the p-aminophenol is converted to the acetaminophen. Using acetic anhydride, the p-aminophenol is going to be acetylated. The reaction is carried out in water at room temperature. Acetic anhydride does react with water, but it happens slowly.
From playlist Aspirin to Acetaminophen (Parts 1 to 6)
Make p-Chlorophenyl Acetonitrile - Step 4 in Pyrimethamine Synthesis
In this video we make p-chlorophenyl acetonitrile from the p-chlorobenzyl chloride and the sodium cyanide in a previous video. ( Complete pyrimethamine playlist so far: https://www.youtube.com/playlist?list=PLU79801KtVAU1XsTwHaKkqQoBgz_VYmPS ) Fortunately this is a very mild process and
From playlist Pyrimethamine
1.4-Dioxane from ethylene glycol (Part 1)
This is part one of my dioxane preparation. The product is still heavily contaminated and in the follow up videos we are going to purify it. Instagram: https://www.instagram.com/thyzoyd/?hl=de 🐦 Twitter: https://twitter.com/thyzoid1?lang=de 📌Reddit: https://www.reddit.com/user/Feuerfrosc
From playlist Organic Chemistry
Inverse Laplace Transforms - Full Tutorial
This is a full tutorial on inverse laplace transforms. Several examples are given. I hope this is helpful. If you enjoyed this video please consider liking, sharing, and subscribing. Udemy Courses Via My Website: https://mathsorcerer.com Free Homework Help : https://mathsorcererforums.
From playlist Math Tutorials
Laplace Transforms: The First Translation Theorem || Full Tutorial
This is a full tutorial on Laplace Transforms and the First Translation Theorem. If you enjoyed this video please consider liking, sharing, and subscribing. Udemy Courses Via My Website: https://mathsorcerer.com Free Homework Help : https://mathsorcererforums.com/ My FaceBook Page: h
From playlist Math Tutorials
We work through some sample exam problems on Laplace Transforms and Differential Equations.
From playlist MATH2018 Engineering Mathematics 2D
Complex analysis: Gamma function
This lecture is part of an online undergraduate course on complex analysis. We describe the basic properties of the gamma function, including its functional equations and the duplication formula, and give a characterization of it in terms of its functional equation and growth rate. Corr
From playlist Complex analysis
Theory of numbers: Dirichlet series
This lecture is part of an online undergraduate course on the theory of numbers. We describe the correspondence between Dirichlet series and arithmetic functions, and work out the Dirichlet series of the arithmetic functions in the previous lecture. Correction: Dave Neary pointed out t
From playlist Theory of numbers
MATH2018 Lecture 8.3 Differential Equations via Laplace Transforms (part 2)
We already know that functions with discontinuities can be easily handled with Laplace Transforms. In this lecture, we see how Laplace Transforms can be used to solve ODEs with discontinuities on the right-hand side.
From playlist MATH2018 Engineering Mathematics 2D
Differential Equation Using Laplace Transform + Heaviside Functions
Thanks to all of you who support me on Patreon. You da real mvps! $1 per month helps!! :) https://www.patreon.com/patrickjmt !! Please consider supporting me on Patreon! https://www.patreon.com/patrickjmt In this video, I solve a differential equation using Laplace Transforms and Heavis
From playlist Differential Equations
Inverse Laplace Transform ultimate study guide
Inverse Laplace Transform ultimate study guide! 24 Inverse Laplace transformation examples that you need to know for your ordinary differential equation class. We will go over the inverse Laplace transform with partial fractions and the inverse Laplace transform with completing the square.
From playlist Convolution & Laplace Transform (Nagle Sect7.7)
MATH2018 Lecture 7.4 Partial Fractions
In first year, you will have seen the method of Partial Fractions used to integrate rational functions. They also play a very useful role in calculating Inverse Laplace Transforms.
From playlist MATH2018 Engineering Mathematics 2D
Partial Fraction Expansion/Decomposition
In this video we discuss how to perform partial fraction expansion (PFE) to rewrite a ratio of polynomials as simpler expressions. Topics and time stamps: (0:03) – Introduction (8:51) – PFE with distinct, real poles (36:06) – PFE with repeated, real poles (51:01) – PFE with complex conj
From playlist Ordinary Differential Equations
In this video i am making 1,4-dioxane from ethylene glycol and sulfuric acid. I will use this in my next video where i will be using it in the process of making sodium metal. I am using NurdRage's protocol for this video, you can find his video here: https://www.youtube.com/watch?v=9Zzrn
From playlist Chemistry for home-labs and self-production