Name the following compounds: (a) CH3 NHCH2 CH3 b) c) d) e) f)

Name: Problem 1, Chapter 18: Organic chemistry with biological applications
Uploaded: 2021-07-19T22:17:57-08:00
Duration: 9 min 1 s
Channel: Allison Krajewski
Description: Name the following compounds: (a) CH3 NHCH2 CH3 b) c) d) e) f)

Name the following compounds: (a) CH3 NHCH2 CH3 b) c) d)...

Key Concepts

IUPAC Nomenclature

IUPAC nomenclature is a systematic method for naming organic compounds that uses a set of rules to ensure each compound has a unique and unambiguous name. It involves identifying the longest carbon chain, functional groups, and substituents, and then assigning appropriate prefixes, infixes, and suffixes to generate the full name.

Organic Amines

Amines are organic derivatives of ammonia where one or more hydrogen atoms are replaced by alkyl or aryl groups. In nomenclature, amines can be named by treating the amino group as either a substituent (using the prefix 'amino-') or as the principal functional group (with the suffix '-amine'), depending on the structure of the molecule.

Substituent Identification and Numbering

Identifying substituents and correctly numbering the parent chain are critical steps in organic nomenclature. The numbering is done to give the lowest possible numbers to the functional groups and substituents, which helps avoid ambiguity and clearly communicates the structure of the molecule.

Transcript

00:01 Okay, so in this problem, you have different alkenes that are depicted as line angle structures, and you want to go ahead and name each of these.

00:16 So when you're naming these structures, the first thing you want to do is identify the longest carbon chain.

00:24 So remember that this is a carbon, this is a carbon, three, four, five, six.

00:30 So basically each point on this line angle structure is representative of a carbon.

00:37 So if you look here, you have six carbons in your longest chain.

00:43 So if you have six carbons, if you start numbering from the left, you have one, two, three for your double bond.

00:49 If you start numbering from the right, you have one, two, three for your double bond.

00:53 And so because of that, you want to look for any constituents.

00:57 So let me write, the carbon double bond is on carbon three.

01:03 So you have this methyl group here.

01:08 So you would start numbering from the left to give your methyl group a lower number.

01:12 So we'd call this one, two, three, four, five, six.

01:17 So methyl is on carbon three.

01:21 So if you name this structure, we'll actually ignore e -and -zine nomenclature for a moment.

01:27 But we call this three -methyl, three hexene.

01:34 So when we're looking about enz nomenclature, we want to identify our highest priority on each carbon.

01:43 So on carbon 3, our ethyl has a higher priority that our methyl.

01:47 I'm just going to say h for higher priority.

01:51 On carbon 4, we have a hydrogen here.

01:54 So our ethel has a higher priority than our hydrogen.

01:57 So we call this h here for higher.

02:02 So because our higher priority groups are on opposite sides, we call this e.

02:14 So our second structure here, again, we want to identify our longest carbon chain.

02:20 So we have one, two, three, four, five, six, seven, eight, nine carbons.

02:27 So, and i think i actually, okay, so we identified our longest carbon chain.

02:39 I thought i was looking at the long problem.

02:44 But now we want to give our double bond the lowest numbering possible.

02:49 So if we start numbering from the left, we have one.

02:51 Two, three, four, five.

02:52 If we start numbering from the right, we have one, two, three, four.

02:56 So one, two, three, four, five, six, seven, eight, nine.

03:03 So our double bond is on carbon four.

03:06 And we also have a methyl group on carbon eight.

03:10 So again, we want to ignore e and z notation.

03:15 So we're going to say that this is eight methyl for non -een.

03:25 And if we're assigning e and z notation, we can draw in our hydrogens here.

03:33 And so on carbon 4, our higher priority group is our propal group.

03:39 I'll actually draw it out as high instead of h, so it's not confusing with hydrogen...

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