DOC PREVIEW
NCSU CH 220 - Naming Straight Chain Hydrocarbons

This preview shows page 1 out of 2 pages.

Save
View full document
View full document
Premium Document
Do you want full access? Go Premium and unlock all 2 pages.
Access to all documents
Download any document
Ad free experience
Premium Document
Do you want full access? Go Premium and unlock all 2 pages.
Access to all documents
Download any document
Ad free experience

Unformatted text preview:

CH 220 1st Edition Lecture 4 Outline of Current Lecture I. Naming straight chain hydrocarbonsII. IsomersIII. Naming branched chain hydrocarbonsCurrent Lecture I. Naming straight chain hydrocarbonsa. Controlled by IUPAC, who regulate naming conventions of organic compounds – the names are mostly systematic but have some outliers# Carbons Name Formula1 Methane CH42 Ethane C2H63 Propane C3H84 Butane C4H105 Pentane C5H126 Hexane C6H147 Heptane C7H168 Octane C8H189 Nonane C9H2010 Decane C10H2211 Undecane C11H2412 Dodecane C12H2613 Tridecane C13H2820 Icosane C20H4240 Triacontane C30H62These notes represent a detailed interpretation of the professor’s lecture. GradeBuddy is best used as a supplement to your own notes, not as a substitute.b. Organic compounds can be drawn in an extensive or line format or written in a condensed formatII. Isomersa. Butane, for instance, can be ‘built’ in different waysi. Butane and isobutane (an isomer) have the same chemical formula, but are different – with different boiling points, and different uses – they CANNOT be interchangedii. This is known as a constitutional isomer, since they are connected in a different manner and therefore have a different carbon skeletoniii. Constitutional isomers can also have different functional groups attached or different positions of functional groupsIII. Naming branched chain hydrocarbonsa. Compounds are given systematic names by a process that uses:i. LOCANT – PREFIX – PARENT – SUFFIXb. The locant is the number of the carbon where the branch is located, making sure that the numbering begins at the end which will ensure the branch or branches have the lowest numbersc. The prefix is the type of substituents that make up the branch with an –yl suffix, for example methyl or ethyld. The parent is determined by how many carbons make up the longest carbon chaine. The suffix is determined by the primary functional groupf. For example 2-methylpropaneg. If there is more than one branch of different types, the format becomes: 3-ethyl-7-methyldecane – where 3 is the location of the ethyl substituent and 7 isthe location of the methyl substituent and the parent chain has 10 carbonsh. If there is more than one branch of the same type, the format becomes:2,5-dimethylheptane – where there are 2 methyl substituents (so we use di as a prefix), that are located at carbon 2 and 5 on a heptane parent


View Full Document
Download Naming Straight Chain Hydrocarbons
Our administrator received your request to download this document. We will send you the file to your email shortly.
Loading Unlocking...
Login

Join to view Naming Straight Chain Hydrocarbons and access 3M+ class-specific study document.

or
We will never post anything without your permission.
Don't have an account?
Sign Up

Join to view Naming Straight Chain Hydrocarbons 2 2 and access 3M+ class-specific study document.

or

By creating an account you agree to our Privacy Policy and Terms Of Use

Already a member?