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Alkynes I: Reactions of Alkynes
In this video, we’ll explore the reactions and versatility of alkynes in organic chemistry. We’ll begin with a review of the fundamental properties of alkynes, followed by a discussion on how the pi electrons in alkynes function as nucleophiles in various reactions, similar to alkenes. Then, we’ll dive into a detailed exploration of key alkyne reactions, covering their key reactive partners, mechanisms, reagents, and synthetic products.
Переглядів: 139
Відео
Alkenes I: Reactions of Alkenes
Переглядів 7712 годин тому
In this video, we’ll explore the reactions and versatility of alkenes in organic chemistry. We’ll begin with a review of the fundamental properties of alkenes, followed by a discussion on how the pi electrons in alkenes function as nucleophiles in various reactions. Then, we’ll dive into a detailed exploration of key alkene reactions, covering their key reactive partners, mechanisms, reagents, ...
Ethers & Epoxides I: Reactions of Ethers & Epoxides
Переглядів 17214 днів тому
In this video, we’ll explore the reactions and versatility of ethers in organic chemistry. We’ll start by reviewing some fundamental properties of ethers, including their synthesis and cleavage, and revisit their utility as protecting groups. Next, we’ll examine the chemistry of epoxides, focusing on the different conditions for epoxide ring opening and their utility as electrophiles in reactio...
Alcohols II: Reactions of Alcohols
Переглядів 18114 днів тому
In this video, we’ll cover a range of important reactions involving alcohols in organic chemistry. We’ll discuss methods to convert primary alcohols into primary halides using concentrated hydrohalic acids, methods to improve leaving group ability by converting alcohols into tosylates, and methods to produce alkyl halides from alcohols without forming carbocation intermediates by using reagents...
Organometallics I: Grignard Reagents & Reactions
Переглядів 155Місяць тому
In this video, we’ll explore the chemistry and applications of Grignard reagents, focusing on their preparation, unique reactivity, and role in forming carbon-carbon bonds. We will also look into their use in synthesizing various types of alcohols, including primary, secondary, and tertiary, through reactions with carbonyl compounds, and reactions of alkyl halides to hydrogen or deuterium.
Fundamentals of Organic Reactions II: Elimination Reactions
Переглядів 134Місяць тому
In this video, we will introduce the third of the five major classes of organic reactions: elimination reactions. We’ll explore the two main types, E1 and E2 reactions, covering their key components, understanding their differences, and identifying the reaction conditions that favor one mechanism over the other. We’ll take a closer look at how carbocation rearrangements, a key type of organic r...
Alcohols I: Alcohol Synthesis
Переглядів 187Місяць тому
In this video, we’ll explore the reactions and versatility of alcohols in organic chemistry. We’ll start by reviewing some fundamental properties of alcohols, including their behavior as weak acids and relatively strong bases. Next, we’ll discuss a couple methods for synthesizing alcohols, starting with the synthesis of primary and secondary alcohols from alkyl halides. We’ll then explore the o...
Fundamentals of Organic Reactions III: Predicting the Pathway
Переглядів 183Місяць тому
In this video, we’ll explore strategies for predicting whether a reaction will follow the SN1, SN2, E1, or E2 pathway. We’ll review key factors that influence each pathway, including leaving group ability, substrate structure, nucleophilicity and basicity of the lewis base, and solvent effects. Finally, we’ll connect these pathways to the first reaction we learned-alkane halogenation-recognizin...
Fundamentals of Organic Reactions I: Substitution Reactions
Переглядів 181Місяць тому
In this video, we will introduce the second of the five major classes of organic reactions: substitution reactions. We’ll explore the two main types, Sn1 and Sn2 reactions, covering their key components, understanding their differences, and identifying the reaction conditions that favor one mechanism over the other. We’ll also discuss how to differentiate nucleophilicity from basicity, as well ...
Stereochemistry & Chirality II: Properties of Optical Isomers
Переглядів 1792 місяці тому
In this video, we'll discuss the properties of optical isomers such as optical rotation, optical activity, and optical purity. We'll explore the concept of polarimetry, define racemic mixtures, and examine the relative energies and physical and chemical properties of enantiomers vs. diastereomers of the same compound. References: Master Organic Chemistry. "Optical Rotation, Optical Activity, an...
Free Radical Reactions I: Free Radical Halogenation
Переглядів 3792 місяці тому
In this video, we’ll explore how to functionalize alkanes through free radical halogenation. We’ll start by introducing homolytic bond cleavage, bond dissociation energy, and the properties of radicals, followed by the factors that influence their stability. Next, we’ll dive into photochemical and heat-induced chlorination and bromination, discussing the free radical chain mechanism-including i...
Stereochemistry & Chirality I: The Isomer Family Tree
Переглядів 3312 місяці тому
In this video, we'll explore our extensive family tree of isomers, revisiting familiar types and investigating a subcategory of stereoisomers, optical isomers, in greater detail. We'll introduce the concept of chirality, explain what distinguishes chiral from achiral molecules, and discuss enantiomers and diastereomers. We'll also cover how to assign R and S absolute configurations to asymmetri...
Alkanes III: Conformations of Cyclohexane
Переглядів 2403 місяці тому
In this video, we will familiarize ourselves with the conformational isomers of cyclohexane, covering equatorial vs. axial positions in the chair conformation, chair flips, and destabilizing gauche and 1,3-diaxial interactions in substituted cyclohexanes. Additional References: chem.libretexts.org/Bookshelves/Organic_Chemistry/Organic_Chemistry_(Morsch_et_al.)/04:_Organic_Compounds_-_Cycloalkan...
Protein Project Biol 252 - Aldolase
Переглядів 833 місяці тому
This is the video I submitted for my protein project in Dr. Ghaemmaghami's Biol 252: Principles of Biochemistry class at the University of Rochester during the spring 2024 semester. The video was created using VideoScribe. Enjoy!
Alkanes II: Geometric Isomers & Ring Strain of Cycloalkanes
Переглядів 2684 місяці тому
In this video, we will familiarize ourselves with the properties of cycloalkanes, discussing how the rigidity of the ring structure influences the isomerism and stability of these compounds. Additionally, we will cover the concept of ring strain and its impact on the relative energies and conformations of cycloalkanes.
Alkanes I: Conformational Isomers of Alkanes
Переглядів 2544 місяці тому
Alkanes I: Conformational Isomers of Alkanes
Acid-Base Chemistry II: pKas, Arrow Pushing, & Formal Charges
Переглядів 1865 місяців тому
Acid-Base Chemistry II: pKas, Arrow Pushing, & Formal Charges
Acid-Base Chemistry I: Intro to Acids & Bases
Переглядів 2005 місяців тому
Acid-Base Chemistry I: Intro to Acids & Bases
Pre organic Chemistry V: Nomenclature
Переглядів 2276 місяців тому
Pre organic Chemistry V: Nomenclature
Pre organic Chemistry IV: Functional Groups
Переглядів 1616 місяців тому
Pre organic Chemistry IV: Functional Groups
Pre organic Chemistry III: Structure Drawing
Переглядів 2056 місяців тому
Pre organic Chemistry III: Structure Drawing
Pre organic Chemistry II: Hybridization & Bonding
Переглядів 3786 місяців тому
Pre organic Chemistry II: Hybridization & Bonding
Pre organic Chemistry I: Chemistry of Carbon
Переглядів 5386 місяців тому
Pre organic Chemistry I: Chemistry of Carbon
thank you Daniel 😀! this is super helpful
Correction: for 2:40 the methanol product should have a CH3OH rather than RCH2OH
Correction: at 11:28, the drawing of the sawhorse projection is incorrect. The methyl group on the back carbon should be on the top bond, such that the methyl groups are gauche to each other.
Corrections: 1) starting at time 3:03, the first line should say CnH2n instead of CnHn. CnH2n is correct for hydrocarbons with 1 degree of unsaturation. 2) starting at time 3:51, the first line should say CnH2n-2 instead of CnHn-2. CnH2n-2 is correct for hydrocarbons with 2 degrees of unsaturation.
Awesome video! ❤️ 😘
I have been blind and deaf since a young age. after watching ohchem101 videos, I can now fully see, hear, and do chemistry. Thank you ochem101!