Chapter 26 notes

Chapter 26 notes - Organic Chemistry Fifth Edition, Paula...

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Sheet1 Page 1 Organic Chemistry Fifth Edition, Paula Yurkanis Bruice Chapter 26- Lipids Notes (May 27th, 2008) LIPIDS Lipids- organic compounds found in living organisms, that are soluble in nonpolar solvents -have a variety of structures and functions -their ability to dissolve in nonpolar solvents comes from their hydrocarbon component *Fatty Acids- one major group of lipids -carboxylic acids with long hydrocarbon chains -naturally occurring fatty acids contain an even number of carbons - *2 types of fatty acids: -Saturated: -no C-C double bonds -melting point increases with increasing molecular weight b/c of increased van deer Waals interactions between the molecules -Unsaturated -have C-C double bonds -fatty acids w/more that 1 dbl bond are called polyunsaturated fatty acids -melting point also increases with increasing mol. weight, but are lower than those of saturated fatty acids with comparable molecular weight -the double bonds have cis copnfigurations and are always separated by one CH2 group
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Chapter 26 notes - Organic Chemistry Fifth Edition, Paula...

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