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เข้าร่วมเมื่อ 18 พ.ค. 2020
Hey! Are you looking for answers to Chemistry's biggest questions? Whether you’re beginner, mastering, doing PhD or discovering new compounds, there’s something for everyone on Kemistry.
On Kemistry, you can expect all that and more coming at you in 2 top-quality videos every week. If you’ve got a thirst for knowledge that never quits, then join this growing community! We have a good time, so take your shoes off, kick back, and make yourself at home here on Kemistry!
On Kemistry, you can expect all that and more coming at you in 2 top-quality videos every week. If you’ve got a thirst for knowledge that never quits, then join this growing community! We have a good time, so take your shoes off, kick back, and make yourself at home here on Kemistry!
What is Chromophore_ Predict electronic transitions n to pi star & pi to pi star _red_ blue shi| |
In this video, we will explain Retrosynthesis of an alcohol (Retrosynthetic Analysis). This is the tenth example from the series of videos of Retrosynthesis. This organic chemistry video tutorial focuses on multistep synthesis reactions and retrosynthetic analysis of different organic compounds. In this video Retrosynthesis (Retrosynthetic Analysis) of acetal and alkene will be carried out.
One of the new skills you want to develop is to figure out how a particular compound can be made. This involves "thinking backward": analyzing what key bonds are present in the target molecule and recognizing what reactions you know that will make one (or more) of those. Usually there will be more than one solution, and your task at that point is to select the one that is likely to give the highest yield with the least effort; issues like hazards and waste also factor in.
Retrosynthesis of alcohols (Retrosynthetic analysis) is fairly straightforward. The oxygen-bearing carbon (I'll call this the carbinol carbon) has four bonds to it, and any of the four might be appropriate targets for a synthesis. Let's look at this example.
The constant goal of a retrosynthetic analysis should be to reduce the molecule to similarly sized building blocks of lower or similar complexity. This simplification should be continued until you reach molecules which are commercially available. The two main operation of a retrosynthetic analysis are: 1) Functional group interconversions (FIG) and 2) bond disconnections. Functional group interconversion (FGI) Many functional groups can be interconverted into each other, e.g. oxidation of an alcohol gives an aldehyde, further oxidation a carboxylic acid. Many organic transformations can be used to do FGIs. Carbonyl groups are particular useful in this respect. The reactivity of the carbonyl group can be masked during synthesis as double bond (ozonolysis for FGI into aldehyde) or dioxolane until needed.
#Retrosynthesis
#RetrosyntheticAnalysis
#OrganicChemistry
#Retrosynthesisorganicchemistry
#Alcohol
#Acetal
#Alkene
One of the new skills you want to develop is to figure out how a particular compound can be made. This involves "thinking backward": analyzing what key bonds are present in the target molecule and recognizing what reactions you know that will make one (or more) of those. Usually there will be more than one solution, and your task at that point is to select the one that is likely to give the highest yield with the least effort; issues like hazards and waste also factor in.
Retrosynthesis of alcohols (Retrosynthetic analysis) is fairly straightforward. The oxygen-bearing carbon (I'll call this the carbinol carbon) has four bonds to it, and any of the four might be appropriate targets for a synthesis. Let's look at this example.
The constant goal of a retrosynthetic analysis should be to reduce the molecule to similarly sized building blocks of lower or similar complexity. This simplification should be continued until you reach molecules which are commercially available. The two main operation of a retrosynthetic analysis are: 1) Functional group interconversions (FIG) and 2) bond disconnections. Functional group interconversion (FGI) Many functional groups can be interconverted into each other, e.g. oxidation of an alcohol gives an aldehyde, further oxidation a carboxylic acid. Many organic transformations can be used to do FGIs. Carbonyl groups are particular useful in this respect. The reactivity of the carbonyl group can be masked during synthesis as double bond (ozonolysis for FGI into aldehyde) or dioxolane until needed.
#Retrosynthesis
#RetrosyntheticAnalysis
#OrganicChemistry
#Retrosynthesisorganicchemistry
#Alcohol
#Acetal
#Alkene
มุมมอง: 139
วีดีโอ
6 Tips for Understanding UV Spectrum | Introduction to Spectroscopy by Pavia, Lampman, Kriz, Vyvyan
มุมมอง 177ปีที่แล้ว
In this video, guidelines are presented to understand UV Spectrum. This is the series of videos on the book of Introduction to Spectroscopy by Pavia, Lampman, Kriz, Vyvyan. It is often difficult to extract a great deal of information from a UV spectrum used by itself. It should be clear by now that a UV spectrum is most useful when at least a general idea of the structure is already known; in t...
Chapter 7.8: Effect of Conjugation | Introduction to Spectroscopy by Pavia, Lampman, Kriz, Vyvyan
มุมมอง 191ปีที่แล้ว
Link to buy the following products: Introduction to Spectroscopy by Pavia-Lampman-Kriz-Vyvyan: amzn.to/3z7uBQI Blue Snowball iCE Microphone for Recording & Streaming: amzn.to/2XjpdND HUION Inspiroy Q11K V2 Wireless Graphic Tablet: amzn.to/3npOPDf In this video we will discuss the effect of conjugation from the chapter Ultraviolet Spectroscopy of the book: Introduction to Spectroscopy by Pavia, ...
Nomenclature of Bicyclic Compounds | Fused, Bridged, Spiral | Organic Chemistry
มุมมอง 5132 ปีที่แล้ว
Link to buy the following products: Blue Snowball iCE Microphone for Recording & Streaming: amzn.to/2XjpdND HUION Inspiroy Q11K V2 Wireless Graphic Tablet: amzn.to/3npOPDf In this video, we will learn about the Nomenclature of Bicyclic Compounds such as Fused, Bridged and Spiral. 1. Fused Rings, Bridged Bicyclic Rings, And Spiro Rings What we didn’t talk about is that the ring junction of decal...
Retrosynthesis Practice Problems with Answers | Retrosynthesis of Cholesterol (Simon Smith reaction)
มุมมอง 2.6K2 ปีที่แล้ว
Link to buy the following products: Blue Snowball iCE Microphone for Recording & Streaming: amzn.to/2XjpdND HUION Inspiroy Q11K V2 Wireless Graphic Tablet: amzn.to/3npOPDf In this video, we will solve practice problems of retrosynthesis. In this video, we will also solve the retrosynthesis of cholesterol (Simon Smith reaction). Retrosynthesis Practice Problems Answer Key One of the new skills y...
Chapter 1: What is Organic Chemistry? | Organic Chemistry by Clayden
มุมมอง 1.3K2 ปีที่แล้ว
Link to buy the following products: Organic Chemistry by Clayden-Greeves-Warren: amzn.to/3EbSXwv Blue Snowball iCE Microphone for Recording & Streaming: amzn.to/2XjpdND HUION Inspiroy Q11K V2 Wireless Graphic Tablet: amzn.to/3npOPDf In this video, we will study the introduction to Organic Chemistry from the book Organic Chemistry by Clayden-Greeves-Warren. The content of this video is taken fro...
Effect of solvents on n-pi and pi-pi start transitions_How to choose solvent for UV_Vis spectro| |
มุมมอง 412 ปีที่แล้ว
In this video, we will explain Retrosynthesis of an alcohol (Retrosynthetic Analysis). This is the tenth example from the series of videos of Retrosynthesis. This organic chemistry video tutorial focuses on multistep synthesis reactions and retrosynthetic analysis of different organic compounds. In this video Retrosynthesis (Retrosynthetic Analysis) of acetal and alkene will be carried out. One...
Synthetic Polymers | Introduction to Polymer Chemistry | Organic Chemistry by Janice Smith
มุมมอง 4602 ปีที่แล้ว
Link to buy the following products: Organic Chemistry by Janice Smith: amzn.to/3ht4LAE Blue Snowball iCE Microphone for Recording & Streaming: amzn.to/2XjpdND HUION Inspiroy Q11K V2 Wireless Graphic Tablet: amzn.to/3npOPDf In this video, we will study Synthetic Polymers (Introduction to Polymer Chemistry) from Chapter 30 of the book: Organic Chemistry by Janice Smith. Polyethylene terephthalate...
Chapter 2.8: Correlation Charts & Tables | Introduction to Spectroscopy by Pavia,Lampman,Kriz,Vyvyan
มุมมอง 9452 ปีที่แล้ว
Introduction to Spectroscopy by Pavia-Lampman-Kriz-Vyvyan: amzn.to/3z7uBQI Blue Snowball iCE Microphone for Recording & Streaming: amzn.to/2XjpdND HUION Inspiroy Q11K V2 Wireless Graphic Tablet: amzn.to/3npOPDf In this video we will discuss the Correlation charts and tables from the book: Introduction to Spectroscopy by Pavia, Lampman, Kriz and Vyvyan. We will see how to assign and interpret IR...
10 Simple Rules for Citation & References | Scientific Writing
มุมมอง 2182 ปีที่แล้ว
Blue Snowball iCE Microphone for Recording & Streaming: amzn.to/2XjpdND HUION Inspiroy Q11K V2 Wireless Graphic Tablet: amzn.to/3npOPDf In this video we will present ten simple rules for citations and references. We researchers aim to read and write publications containing high-quality prose, exceptional data, arguments, and conclusions, embedded firmly in existing literature while making abund...
Chapter 7.16: Visible Spectra | Introduction to Spectroscopy by Pavia, Lampman, Kriz, Vyvyan
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Australia planning to open borders in December 2021 for vaccinated International Students
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COVID 19 vs Common Cold vs Flu vs Allergies | Similarities & Differences | Biochemistry
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Aroma Compounds in Flowers | Aromatic Compounds in Floral Perfumes | Organic Chemistry
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Friedel-Crafts Alkylation | Mechanism, Limitations & Difference from Acylation | Organic Chemistry
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Illogical Two-Group Disconnection | Review Problems | Designing Organic Syntheses by Stuart Warren
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Chapter 11: Proton Nuclear Magnetic Resonance | Coupling | Organic Chemistry by Clayden-Warren
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Illogical Two-Group Disconnection | 1,4-Dioxygenation | Designing Organic Syntheses by Stuart Warren
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How to do Referencing | Referencing Styles & Tools | Vancouver, APA, Harvard, Chicago, AMA, MLA
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Illogical Two-Group Disconnection | 1,2-Dioxygenation | Designing Organic Syntheses by Stuart Warren
มุมมอง 1.3K3 ปีที่แล้ว
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Chapter 2.9: Analysis of a Spectrum | Introduction to Spectroscopy by Pavia, Lampman, Kriz, Vyvyan
มุมมอง 8703 ปีที่แล้ว
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Chapter 2.7: Examining Infrared Spectra | Introduction to Spectroscopy by Pavia,Lampman,Kriz,Vyvyan
มุมมอง 1K3 ปีที่แล้ว
Chapter 2.7: Examining Infrared Spectra | Introduction to Spectroscopy by Pavia,Lampman,Kriz,Vyvyan
Chapter 2.5: The Infrared Spectrometer | Introduction to Spectroscopy by Pavia,Lampman,Kriz,Vyvyan
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Chapter 2.2: The Modes of Vibrations | Introduction to Spectroscopy by Pavia, Lampman, Kriz, Vyvyan
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Feeding the Kangaroos at Royal National Park at Sutherland Shire, Australia | Vlog #2
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Thank you very much sir ji 🙏🙏
Gonzalez David Lewis Michael Wilson Carol
your explanation is really useful for me! thank you
Possible name of the source or book
Great video dr 🥰
👍
Nice information
im taking chemical spectroscopy most difficult chapter is NMR spectroscopy
Helpful tips for interpreting UV vis spectroscopy It also touches about practical guide and all the six tips mentioned here important in understanding how to make good use of this. I was preparing for my exam and this video uploaded right on time and thanks for sharing this
Thanks for sharing this after a long time. I follow the contents of your channel. Please upload regularly ❤
Agree
Wonderful and informative as well.
VERY INFORMATIVE
Very helpful
quite helpful
Plz continue all clayden series
this vs table top NMR which one is better??
Next lecture???😢
Nice
Can you please explain pavia book in details
Sir how we get this book in hard form ?
Good Job 🤩🤩keep up the good work👏👏
👍
👍
👍
👍
Very good explanation. Really enjoyed. As an experience in chemistry, I felt you should increase more contents in single video.
Please upload regularly ❤
You need to explain a bit more, it's very conceptual chapter just reading the chapter is not enough
I have an exam this Friday and your Videos helped me alot, i have just a question in min 24: 14 could you please explain the reforms key enolat
Good explanation, thank you sir
Good evening sir. Please send one demo on single crystal growth sir.
Why we didn’t disconnect it like the previous video, i mean first the benzyl with grignard reagent and 2alcohol ketone?
Superb..👌
Nice video sir
Sir,clayden other chapters also can you do please
In ester why we donot break O-Ethyl bond ??
Interesting video
Great 👍👍❤️
After so long time ❤
Thanks for uploading a video at last 😁😁😁
Great video Sir!!!
I felt so glad to watch this informative video after a long time please upload other information as soon as possible
Pls complete your series'
Your videos are very useful. Thank you
Nice Video. Very useful
thank you
Glad you think so!
Tea Love❤️ But Chemistry Hate😜
Hello sir, I am from India, Your teaching is excellent, Thanks for this explanation,🙏🙏
So nice of you
Dear.! want to apply in PhD in Chemistry but don't have IELTS. what should I do.?
watch the video, there is alternate option mentioned in video
Thanks!!!
Nicely Explained All the basics things Got lots of Confidence before my Final exams 🙌🏻
Thanks for feedback
Glad to hear that!
Can you do the problem no 2