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.

learn more… | top users | synonyms

1
vote
2answers
121 views

Is pentamine or pentylamine the correct name?

For $\ce{CH3CH2CH2CH2CH2NH2}$, is the correct name pentylamine or pentamine? From http://antoine.frostburg.edu/chem/senese/101/organic/faq/yl-ending.shtml "The -yl ending means "a fragment of an ...
-1
votes
0answers
19 views

What's the difference between tocopherol and pre-tocopherol? [closed]

Thank you very much for answer! Examples of PRE-tocopherol are α-Tocopherol and γ-tocopherol? Is it correct?
5
votes
2answers
263 views

Origin of Azide's Name

Today, I learned that $\ce{N_3^-}$ is referred to as azide. I was wondering why $\ce{N_3^-}$ is referred to as azide. I checked Wikipedia for an answer, but I didn't find one. Does anyone know why ...
3
votes
1answer
42 views

Carbaldehyde or formyl?

Which is correct 5-methylbenzyl-3-carbaldehyde-1-oic acid or 3-formyl-5-methylbenzoic acid, MarvinSketch recognizes them both as correct?
3
votes
2answers
209 views

How to name this benzene alcohol?

The following is the molecule I am confused about. Earlier in my textbook it gives an example of how to name benzenes with 2 or more hydroxyl groups: My textbook (Nelson 12 Chemistry) is ...
2
votes
1answer
34 views

When naming alcohols based on alkanes, when do you keep the “e” at the end of the alkane's name?

For example, you would write pentane-1,2-diol but pentan-2-ol, correct? Is the difference simply the number of hydroxyl groups?
0
votes
2answers
59 views

Naming of butene derivative

Please name this compound for me.
1
vote
2answers
56 views

Do 2-hexyne and hexa-2-yne mean exactly the same thing?

Do 2-hexyne and hexa-2-yne mean exactly the same thing? If so, what is the purpose of having two naming conventions?
0
votes
1answer
40 views

Is this chemical name wrong? 2-bromobutane vs 1-bromobutane [closed]

Well, technically it's already wrong because it should end in "-propane" but my textbook is so crappy let's just ignore that for a second. The naming convention goes that substituent groups should be ...
-1
votes
2answers
45 views

How should I name this cyclic alkane?

Can anyone help me name (with IUPAC conventions) the following cyclic alkane? My textbook (Nelson. It's possibly the worst textbook series) lists the answer as 1,3-dichlorobutane except there are no ...
1
vote
1answer
28 views

Preference of locants in organic nomenclature

Why can't we write the compound 5-ethyl-4-methyloctane as 4-ethyl-5-methyloctane?
0
votes
0answers
46 views

What is the chemical formula of the compound manganic cyanide?

My teacher put this "manganic cyanide" on our nomenclature test, asking us to give the corresponding chemical formula. I do not know what it is even now, after the test. Please help, or assure me that ...
3
votes
1answer
51 views

What is the meaning of [2,1-c][1,4] in Pyrrolo[2,1-c][1,4]benzodiazepine?

Pyrrolobenzodiazepines are a group of DNA-alkylating natural products. What is the exact meaning of the [2,1-c][1,4] part in the full descriptive name Pyrrolo[2,1-c][1,4]benzodiazepine? General ...
1
vote
0answers
16 views

Nomenclature of salts of oxyanions [duplicate]

I want to know what is the way to determine a compound's composition by just seeing the name. For example, if I see the name "copper (II) sulfate" How would I go about deducing that its formula is ...
11
votes
1answer
97 views

Molecular knots absolute configuration

How is the absolute configuration of chiral molecular knots determined? What rules should be applied? For centrochiral compounds, the CIP rules are applied, for axially chiral is described here and ...
-1
votes
2answers
67 views

Is aluminum nitrate a polyatomic?

In my book it talks about aluminum nitrate and copper (II) perchlorate. It is stated that: "In the chemical formula for aluminum nitrate and copper perchlorate, parenthesis followed by the ...
3
votes
2answers
122 views

What is the numbering of substituted benzene derivatives according to IUPAC nomenclature?

According to the lowest locant rule should'nt the numbering of the compound start from the Carbon at the 4th position thus giving the iupac name as 1,2-dimethyl-4-hydroxybenzene? EDIT Here they ...
1
vote
2answers
80 views

Why is H2O2 named hydrogen peroxide?

Why is $\ce{H2O2}$ named hydrogen peroxide and not dihydrate dioxide?
4
votes
1answer
135 views

Can we use prefixes like iso, neo, etc in IUPAC nomenclature of organic compounds?

Shouldn't the name of the compound in the picture be 5-(1-ethyl-2-methylpropyl) nonane instead of the given name?
-2
votes
1answer
74 views

Nature of urea and it's relation with uric acid

My question is what is the nature of urea. I checked it on the Internet and according to my results, the nature of urea is basic. Then why is there uric acid? For example when we add magnesium oxide ...
-2
votes
1answer
30 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
164 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
58 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 carbonyl ...
1
vote
1answer
147 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
38 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 ...
2
votes
1answer
162 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
90 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 ...
11
votes
3answers
593 views

Is this molecule possible? And if so, what is it called? (Cyclic groups)

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
34 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
54 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
38 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
98 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
195 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
77 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
58 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 α/...
5
votes
0answers
44 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
71 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
48 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
90 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
votes
0answers
17 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
144 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
113 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 5-(x-...
-6
votes
1answer
96 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
25 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
211 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
vote
0answers
58 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
55 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
39 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!