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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1answer
24 views

Naming a tri-substituted amine [closed]

Just came across this couldn't decide how to name it, anyone think they can give it a go? $\hspace{7cm}$
10
votes
1answer
154 views

Can you have a meta stereocenter?

Imagine a compound such as 1,3-dibromo-1,2,3-trichloropropane. Since the first and third carbons are attached to four different groups, they are both chiral centers. Assuming that both of these ...
3
votes
1answer
47 views

Semi-sandwich complex IUPAC name

I've tried looking here, but I can't figure it out. As a start, what is just the cobalt and cyclopentadienyl anion compound called. How does that name get added to the trimethylphosphine and ...
1
vote
1answer
98 views

What is the IUPAC name of this Di-Benzene like compound? Is it Aromatic?

What is the IUPAC name of this compound? Is it Aromatic? The above compound has $12 \ \pi$ electrons and according to Hückel's Rule, it should not be aromatic because $12 \neq 4n+2$, but it ...
0
votes
1answer
35 views

Tridecane isomer name

What is the name of this $\ce{C13H28}$ isomer: $\hspace{5.5cm}$ I think it must be "4-ethyl-6,7-methylnonane," but I saw somewhere that its name is "6-ethyl-3,4-methylnonane". Why? The ethyl number ...
1
vote
1answer
84 views

IUPAC name for citric acid

I was wondering what the name is of the following structure: I think it's something like ... 3-hyrodxypentanoic diacid However, I wasn't able to find how to name ...
7
votes
2answers
77 views

Naming of 2-methylpropane

I can't understand why 2-methylpropane has/needs the 2 in front of it? It appears to me that if you were to add the methyl group at the first or last carbon on the chain then you get plain old butane ...
7
votes
3answers
543 views

Is this molecule possible? And if so, what is it called?

I saw a little chemistry pun with a couple of hydrocarbons included, and it had me thinking if they were actually possible and if so, what would the name given to it be. The hydrocarbon I am curious ...
0
votes
1answer
30 views

Why derived name of nomenclature is used for Alkanes and alcohols only?

My chemistry textbook says derived system of nomenclature of organic compounds is only limited to alkanes and alcohols! What is the reason behind it? Is it chemical or like a ritualistic/cultural?
1
vote
1answer
52 views

Name this amine [closed]

Consider the following two amines: I've been given the name for the second amine as N,N-dimethylamino-2-propane. Can this same approach be used to name the first amine? If so, I think its name ...
1
vote
1answer
36 views

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 ...
4
votes
1answer
88 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 ...
5
votes
2answers
188 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 ...
0
votes
1answer
61 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 ...
6
votes
1answer
50 views

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 ...
5
votes
0answers
41 views

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 ...
-1
votes
1answer
62 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 ...
1
vote
1answer
37 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 ...
1
vote
1answer
67 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 ...
0
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0answers
16 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 ...
3
votes
1answer
143 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 ...
5
votes
1answer
106 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 ...
-6
votes
1answer
77 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?
1
vote
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?
1
vote
1answer
21 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.
4
votes
1answer
206 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?
1
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0answers
55 views

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 ...
0
votes
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 ...
1
vote
1answer
49 views

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 ...
-1
votes
2answers
38 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!
3
votes
1answer
80 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) ...
-1
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1answer
38 views

Nomenclature of Amines

Will it be N,N DIMETHYL (1-METHYL-1-ETHYL PROPANE AMINE)
0
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3answers
45 views

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?
1
vote
1answer
44 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 ...
4
votes
1answer
161 views

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 ...
0
votes
1answer
19 views

Ether nomenclature [duplicate]

Why is the name of this ether 2-Ethoxy-1,1-dimethylcyclohexane? Shouldn't the numbering be reversed?
11
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1answer
322 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.
2
votes
1answer
92 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 ...
3
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0answers
30 views

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 ...
3
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0answers
45 views

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 ...
1
vote
3answers
87 views

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 ...
0
votes
1answer
57 views

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, ...
1
vote
0answers
40 views

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 ...
2
votes
1answer
44 views

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 ...
10
votes
2answers
357 views

Nomenclature of a cyclic ketone

Why isn't this molecule named 2-fluorocyclopent-1-one?
4
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2answers
65 views

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 ...
1
vote
1answer
78 views

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?
3
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0answers
41 views

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 ...
13
votes
1answer
222 views

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 ...
1
vote
1answer
37 views

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. ...