Propyl group: Difference between revisions
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[[Image:Propyl groups.png|thumb|300px|From left to right: the two isomeric groups prop-1-yl and prop-2-yl, and the non-isomeric cyclopropyl group.]] |
[[Image:Propyl groups.png|thumb|300px|From left to right: the two isomeric groups prop-1-yl and prop-2-yl, and the non-isomeric cyclopropyl group.]] |
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In [[organic chemistry]], '''propyl''' is a three-[[carbon]] [[alkyl]] [[substituent]] with [[chemical formula]] '''-[[Carbon|C]]<sub>3</sub>[[Hydrogen|H]]<sub>7</sub>'''. It is the substituent form of the [[alkane]] [[propane]]. |
In [[organic chemistry]], '''propyl''' is a three-[[carbon]] [[alkyl]] [[substituent]] with [[chemical formula]] '''-[[Carbon|C]]<sub>3</sub>[[Hydrogen|H]]<sub>7</sub>'''. It is the substituent form of the [[alkane]] [[propane]]. A propyl substituent is [[Skeletal_formula#Pseudoelement_symbols|often represented in organic chemistry]] with the symbol Pr (not to be confused with the element [[praseodymium]]). |
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There are two [[isomer]]ic forms of propyl: |
There are two [[isomer]]ic forms of propyl: |
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Revision as of 15:10, 13 March 2011
In organic chemistry, propyl is a three-carbon alkyl substituent with chemical formula -C3H7. It is the substituent form of the alkane propane. A propyl substituent is often represented in organic chemistry with the symbol Pr (not to be confused with the element praseodymium).
There are two isomeric forms of propyl:
- with the substituent attached to one of the end carbons (called prop-1-yl in the IUPAC nomenclature, or n-propyl (Pr-n) in the old naming system); and
- with the substituent attached to the middle carbon (called methylethyl in the IUPAC system, or isopropyl in the old system).
In addition there is a third, cyclic, form called cyclopropyl, or c-propyl. It is not isomeric with the other two forms, having the chemical formula -C3H5.
Examples
This is propyl ethanoate, an ester. The propyl group is attached to the molecule after the middle oxygen.
Other examples
See also
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