Organic Chemistry Nomenclature Practice

Sub Topics:
  • Organic Chemistry Nomenclature Rules
  • Organic Nomenclature Problems

  • Nomenclature of organic chemistry is really a systematic method of naming organic chemical compounds as recommended through the International Union of Pure and Applied Chemistry (IUPAC). Ideally, every possible organic compound must have a name from where an unambiguous structural formula can be created.

    For ordinary communication, to spare a tedious description, the official IUPAC naming recommendations usually are not always followed in practice, except when it's essential to give an unambiguous and absolute definition with a compound, or if the IUPAC name is very simple (e.g. ethanol rather than ethyl alcohol). Otherwise the most popular or trivial name may be used, often based on the source with the compound (see below). Additionally, very long names might be less concise compared to structural formulas


    Organic Chemistry Nomenclature PracticeCovers the formation as well as reactions of alkyd halides, such as the Sn1 reaction, Sn2 reaction, E1 reaction and also E2 reaction 

    Covers molecular orbital theory, acid and base strength, functional group classification, as well as nomenclature of alkanes and bi cyclic molecules.

    Organic Chemistry Nomenclature Rules

    The steric structure of the compound is denoted by an affix or affixes towards the name that will not prescribe the stereochemistry; such affixes, being additional, do not change the name or even the numbering of the compound. Therefore, enantiomers, diastereoisomers, and cis -Trans-isomers receive names which are distinguished only by way of different stereo chemical affixes. The only exceptions are those trivial names which have stereo chemical implications (for example, fumaric acid, cholesterol). Note: In some instances stereo chemical relations enables you to decide between

    Alternative numberings which are otherwise permissible. E-1 Kinds of isomerism

    The following non-stereo chemical terms are relevant to the stereo chemical nomenclature given in the Rules that follow: (a) the term structure may be used in connection with any part of the organization of matter. Hence: structural (adjectival)

    (b) Compounds which have identical molecular formula but differ in the nature or sequence of bonding of the atoms or even in arrangement of the atoms in space are usually termed isomers. Therefore: isomeric (adjectival) isomerism (phenomenological).

    Organic Nomenclature Problems

    These questions are organized relatively by functional group (as many organic courses introduce nomenclature one functional group with a time). The index below will require you to the beginning of questions that focus on a particular functional group, Otherwise you may page with the document while you like.

    Basic Hydrocarbon Nomenclature

    Unsaturated Hydrocarbon Nomenclature

    Nomenclature from Condensed Formulas

    Nomenclature of Aromatic Hydrocarbons

    Nomenclature of Halogen Compounds

    Nomenclature of Alcohols

    Nomenclature of Aldehydes & Ketones

    Nomenclature of Carboxylic Acids

    If you are asked to write an IUPAC name for a compound, pay careful attention to the syntax of this nomenclature system. For example, commas and dashes must be used in precisely the correct manner, and extra spaces must be avoided. Spelling must also be absolutely correct. Computers (and some instructors) are unforgiving when it comes to judging the names you submit.