This tag should be used four questions about the naming of compounds and elements, usually using systematic names according to IUPAC recommendations, but also using retained traditional names.

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Nomenclature of Organic Compund doubt

Is the IUPAC name of above compound 7,7-dibromo oct-5-yn-4-ol or 2,2 dibromo oct-3-yn-5-ol ? I understand that the former name is given keeping in mind -OH as the functional group but by giving the ...
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1answer
81 views

Naming compounds with multiple -COX functional groups

I know that this compound is named propanoyl chloride. However I am not sure what to do when here are multiple -COX groups and they are of the highest seniority. There are two cases, when they are ...
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2answers
184 views

Naming compounds with an OX group

How are compounds which have a bond between an oxygen atom and a halogen atom named according to IUPAC rules? For example this compound: I looked in many sites, but couldn't find how such compounds ...
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1answer
58 views

Why do these two IUPAC naming examples not begin numbering the chain closest to the alkyne?

I am currently reading my chemistry book which states "The chain is numbered from the end closest to the triple bond." However, then it proceeds to give two examples which I do not believe follow this ...
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1answer
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α versus β D-ribopyranose

I understand that sugars are named α/β according to the arrangement of the OH on the anomeric C with respect to the hydroxymethylene group (Ex. glucose), but I'm a little confused how you determine ...
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0answers
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Is there a preferred way of naming the resonance hybrid in keto-enol tautomerism?

While answering a question about keto-enol tautomerism the question arose, how can I refer to the resonance hybrid instead of on of the resonance forms. In the case of the deprotonated butane-2-one, I ...
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1answer
54 views

Naming compound with multiple carbonyl and/or hydroxyl groups

I think I understood the main idea behind naming compounds with carbonyl groups, however I am not sure about a few things. For the first compound, there is more than one carbonyl group and one of ...
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1answer
31 views

What is more important, to have the parent chain be the cycle or the chain that has an hydroxyl group

I know how to name alcohols, I just don't know what I should chose as the parent chain. Should I chose the cycle or the chain with the hydroxyl group. Here is an example: My current algorithm tells ...
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1answer
52 views

Order of priority for including functional groups in the parent chain compared to order of priority for numbering the parent chain

The following is about the IUPAC naming system. So as far as I understand the rules for numbering a chain are as follows: Compare the locants of functional group 1 in both cases if the are lower in ...
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0answers
15 views

Order of Bonding in Nonaqeuous Hydrated Salts [duplicate]

In the chemical formula of a hydrated salt, such as $\ce{CuSO_4.5H_2O}$, is it implied from the format of the name that the the Copper (II) ion is ionically bonded to the sulfate, with water molecules ...
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1answer
139 views

What are these unsaturated hydrocarbons called?

What are the preferred IUPAC names for the following 3 compounds: The first one is 3-ethenylhexa-1,5-diene. The second one is 3-methylidenehexa-1,5-diene. But I am still not sure about the ...
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1answer
102 views

What is this organic compound with complex substituent called?

I'm trying to decide between: 5-(1,2-dimethylpropyl)decane 5-(2-methylbutan-3-yl)decane 5-(3-methylbutan-2-yl)decane If it is the second or third of these, would it also be valid to name it ...
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1answer
66 views

What is the IUPAC (and common) name for the compound in this picture? [closed]

What is the IUPAC (and common) name for the compound in this picture?
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0answers
20 views

Is ethylene diamine tetra acetate a misnomer? [duplicate]

Since there is no double bond, I thought EDTA should be ethane... instead. Am I missing something? I understand this is not the complete IUPAC name, but why name it wrong on purpose?
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1answer
20 views

Reference request - Nomenclature of organophosphorus compounds?

Can someone please provide me a good reference for the nomenclature of organophosphorus compounds such as pesticides and chemical warfare agents? Something from the IUPAC would be great. Thanks.
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1answer
203 views

Naming unsaturated hydrocarbons

$\ce{CH2=CH-CH=CH-CH2-CH3}$ Is this hexa-1,3-diene or hex-1,3-diene? And why? When do you add an extra a and when do you not?
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0answers
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Is there a systematic way of remembering the names and formula of Oxoacids of Phosphorus? [closed]

My question is exactly what the title says: Is there a systematic way of remembering the names and formula of Oxoacids of Phosphorus ? I am asking this because I find it very daunting to memorize ...
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2answers
31 views

Inter-classification of organic chemistry functional groups (carboxyl vs alcohol & ether vs ester)

I have a few questions about whether organic functional groups can be classified as another. First, can carboxylic acids be also be considered alcohols (they have $\ce{-OH}$)? If not, can they at ...
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1answer
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Naming of bicyclo[2.2.1]hept-5-ene-1,4,5,6-tetramethyl-3-bromo-2-ethyl carboxylate

I've synthesized a molecule (depicted above) using a Diels-Alder reaction, and I can't find it in any database (I used scifinder for my search), so I need advice about the name. The name I came up ...
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2answers
33 views

Nomenclature of saturated aliphatic hetrocyclic amines with an alkyl group on the nitrogen [closed]

For example, how would I name the following amine? Sorry! I wouldn't normally ask but I've spent hours trying to figure this out and it's driving me crazy!
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1answer
74 views

Chromium complexes and nomenclature

In theory, $\ce{[Cr(H2O)6]^3+}$ ions have a bluish violet colour. However, many times in the lab we end up with a dark green solution. This is due to hydrolysis, coordination with sulphate (or other) ...
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1answer
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Nomenclature of Amines

Will it be N,N DIMETHYL (1-METHYL-1-ETHYL PROPANE AMINE)
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Double Bond or Aldehyde priority?

Pent-3-enal. In the structure of pent-3-enal, the third carbon atom has aldehyde group or double bond? Also is the priority same for all other functional groups?
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1answer
40 views

Why is this named 2-amino methylbenzene?

Why does o-toluidine have 2-amino methylbenzene as its IUPAC name? Why isn't it named as a derivative of amine (like 2-Methyl aniline) ? Aren't amines given a higher priority than alkanes in ...
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1answer
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Nomenclature of benzene derivatives

In several places, I have seen that while naming benzene derivatives, no priority for substituents is followed. Eg: 2-hydroxy aniline= 2-amino phenol. Is there no order? Or is the order different ...
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1answer
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Ether nomenclature [duplicate]

Why is the name of this ether 2-Ethoxy-1,1-dimethylcyclohexane? Shouldn't the numbering be reversed?
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1answer
307 views

What does dl- mean in nomenclature

I came across the compound dl-stilbene dibromide, and I am confused by exactly what this means. I thought it might have meant a racemic mixture but there is only one chemical structure given.
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1answer
74 views

Space in naming Acetophenone

The IUPAC name for Acetophenone is : 1-Phenylethanone. An other name is : Methyl phenyl ketone. My question here why there's a space in "Methyl phenyl ketone" although there's no space in ...
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Is there a general term for a vertex in a skeletal formula?

When a carbon atom is single bonded to a residue, it is referred to simply as "methyl." When it is single bonded to two attachments, it is methanediyl, or methylene bridge. When it is single bonded to ...
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Is there a nomenclature for linear alkanes with n carbons?

Is there a common nomenclature (not necessarily IUPAC) for naming linear alkanes with $n$ carbons without resorting to Greek/Latin numerical prefixes (hex-, hept-, etc.)? For instance, is there a ...
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3answers
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nomenclature of citric acid

I named Citric acid : "3-hydroxypentan-1,3,5-trioic acid" but when I searched , I found that the right name is "3-carboxy-3-hydroxypentane-1,5-dioic acid" Can anyone explain to me why my ...
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1answer
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Numbering in chlordiazepoxide

The IUPAC name of chlordiazepoxide is given as : 7-chloro-2-methylamino-5-phenyl-3H-1,4-benzodiazepine-4-oxide, but when I started numbering the structure, I am unable to find chlorine on 7th carbon, ...
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How do I assign R/S configuration?

So I have this molecule shown up here and I need to give its systematic name according to the UIPAC and need to give its R/S configuration in the name. I suspect the name to be ...
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1answer
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Alphabetical order in nomenclature

Shouldn't 4-isopropyl-2-cyclohexyl-3,5-dimethylheptane be written as 2-cyclohexyl-3,5-dimethyl-4-isopropylheptane, by following alphabetical order? Or maybe you don't look at the cyclo or the di ...
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2answers
350 views

Nomenclature of a cyclic ketone

Why isn't this molecule named 2-fluorocyclopent-1-one?
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2answers
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Nomenclature of a branched alkane

Here I need to give the systematic name of this molecule so I decided to first find the longuest chain of carbons which seems to be the one I put in red. Then I have 2 ethyls at 3 and 4 and I have ...
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1answer
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What should be the name of this substituted cyclopentane?

I think its name is 5-amino-3-bromo-4-chloro-2-hydroxycyclopentan-1-carbonitrile. Is that correct?
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Problem naming this cyclohexene [duplicate]

I saw this cyclohexene in my textbook and wonder why it’s like that. I searched the internet and it’s correct but why? As I know we try to keep the numbers low, so instead of 1,6-dichlorocyclohexene ...
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1answer
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IUPAC nomenclature for an interesting looking organic compound

How can I name this organic compound while adhering to the IUPAC standards? Excuse me for the terribly hand-drawn hexagons. (Here, the hexagon with the circle in it is essentially a phenyl ...
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1answer
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Nomenclature alkyl halides

I was solving questions on the MSU website on organic nomenclature. Out of the following questions, I got only the first and last one right. Where am I going wrong with the others?Hints would suffice. ...
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1answer
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Question about DNP derivatives of amino acids (specifically epsilon-DNP-lysine)

I have a pretty basic biochemistry question but am having trouble finding the answer to it: Normally, DNFB (dinitrofluorobenzene, or 1-fluoro-2,4-dinitrobenzene to be exact) reacts with just the ...
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2answers
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Do IUPAC names for haloalkanes require numerals?

I'm new one of chemistry. I want to know the IUPAC nomenclature rules. That is if we write alkane with halogen must be indicate the numerals? Are the following names right or wrong? chloropentane ...
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1answer
66 views

What does the subscript n on methylene groups in a cyclic alkene mean?

I've recently come across an unfamiliar notation on a cyclic alkane. One carbon had parentheses around it with a subscript $n$. Does this refer to rings of variable sizes (i.e. one or more $\ce{CH2}$ ...
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2answers
91 views

When are the prefixes bis, tris etc. used in nomenclature of complexs?

Are the prefixes bis-, tris- etc. used only for ligands that are bidentate in complex nomenclature?
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1answer
58 views

Is peroxoborate and perborate the same thing?

Recently I came across the following question:- Preparation of Sodium Peroxoborate- Equations The term peroxoborate came from the fact that it has the peroxo bond $\ce{-O-O}-$. So, it should be ...
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1answer
397 views

What is the IUPAC name of [Co(NH3)5H2O]Cl3?

I am not getting if it is Pentaammineaquo cobalt(III) chloride or Aquopentaammine cobalt (III) chloride-should the prefix be ignored while naming the ligands in alphabetical order? Besides how should ...
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1answer
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How would I name O-methylations on sugars while retaining the sugar’s common name?

Suppose I had a monosaccharide, e.g. D-arabinose. Suppose I do a few synthetic steps with it, and end up with the compound methyl (2S,3R,4R)-3,5-dihydroxy-2,4-dimethoxypentanoate. (as labelled by ...
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Definition of an amide

If I asked you to draw me an amide, we'd likely end up with something in the form of: The exact definition of this is given fairly clearly in the IUPAC gold book. Derivatives of oxoacids [...] ...
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60 views

Is chloronitrobenzene and nitrochlorobenzene same?

Is it 2-chloronitrobenzene or 2-nitrochlorobenzene? If we take nitro group as the substituent, it will be 2-chloronitrobenzene. But if we take chloro group as the substituent, it is ...
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Amine Nomenclature – When to use “N”

I'm currenty wondering what the correct naming scheme for the following molecule would be: Is this called "2,N,N-trimethylpropan-1-amine" or "2-methyl-N,N-dimethylpropan-1-amine". In other words, do ...