4

As for your other question, the simplified criteria for the numbering are: lower locants for the principal characteristic group that is expressed as suffix lower locants for multiple bonds lower locants for prefixes lower locants for substituents cited first as a prefix in the name The corresponding actual wording in the current version of Nomenclature of ...


3

Most people would call it vinyl acetate. If you want the systematic name, then it is ethenyl ethanoate. It is formally derived from "vinyl alcohol" and acetic acid, from which the name follows easily. See here (https://en.wikipedia.org/wiki/Ester#IUPAC_nomenclature), for example. The compound is https://en.wikipedia.org/wiki/Vinyl_acetate.


2

The group -COO- is called "carboxylate" if it is included in a molecule with some organic radicals attached on its left and on its right-hand side. It is a definition, due to the fact that there is a carbon atom bound to an oxygen atom. Joined together, it makes carboxy. This terminology is used when no simpler way of naming this structure exists. Examples. ...


2

Yes, you are correct: an -ate prefix is used when the complex has a net negative charge and the name should be triamminetrinitritocobaltate(I) ion Reference: If the overall coordination complex is an anion, the ending "-ate" is attached to the metal center. Some metals also change to their Latin names in this situation. The rest of the metals simply have ...


2

Yes, it's convention to write butan-1-ol as butanol, just as it's likely to write propan-1-ol as propanol (whenever it's attached to the first carbon, we usually just omit the 1) I'm not quite sure about what you mean with isomers, but we name isomers in different ways so that we can distinguish them. For example, butan-1-ol and butan-2-ol are considered ...


2

The most important simplified criteria for the numbering in such cases are: lower locants for the principal characteristic group that is expressed as suffix lower locants for multiple bonds lower locants for prefixes lower locants for substituents cited first as a prefix in the name The corresponding actual wording in the current version of Nomenclature of ...


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