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Triglycerides (which make up cooking oils) tend to become rancid with time as they react with oxygen. This occurs because the triglyceride molecule reacts with oxygen to form carbon-centered radicals, which can create a chain reaction resulting in chemical cross-links between lipid chains. Oxygen (02) can exist as a diradical species and can do a hydrogen abstraction reaction. R represents the rest of the triglyceride OR oleic acid OR linoleic acid structure. Draw the Lewis structure for dioxygen (0,) and draw a resonance structure of dioxygen in its diradical form: Draw a hydrogen abstraction reaction of diradical oxygen with oleic acid (a monounsaturated fatty acid). Which hydrogen(s) is(are) most easily abstracted? Why?

Triglycerides (which make up cooking oils) tend to become rancid with time as they react with oxygen. This occurs because the triglyceride molecule reacts with oxygen to form carbon-centered radicals, which can create a chain reaction resulting in chemical cross-links between lipid chains. Oxygen (02) can exist as a diradical species and can do a hydrogen abstraction reaction. R represents the rest of the triglyceride OR oleic acid OR linoleic acid structure. Draw the Lewis structure for dioxygen (0,) and draw a resonance structure of dioxygen in its diradical form: Draw a hydrogen abstraction reaction of diradical oxygen with oleic acid (a monounsaturated fatty acid). Which hydrogen(s) is(are) most easily abstracted? Why?

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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I understand that the diradical dioxygen attacks a hydrogen on the carbon adjacent to the double bond but can I be shown the resonance mechanism and why we can't use a hydrogen directly from the double bond?

Triglycerides (which make up cooking oils) tend to become rancid with time as they react with oxygen. This occurs because the triglyceride molecule reacts with oxygen to form carbon-centered radicals, which can create a chain reaction resulting in chemical cross-links between lipid chains. Oxygen (02) can exist as a diradical species and can do a hydrogen abstraction reaction. R represents the rest of the triglyceride OR oleic acid OR linoleic acid structure. Draw the Lewis structure for dioxygen (0,) and draw a resonance structure of dioxygen in its diradical form: Draw a hydrogen abstraction reaction of diradical oxygen with oleic acid (a monounsaturated fatty acid). Which hydrogen(s) is(are) most easily abstracted? Why?
Transcribed Image Text:Triglycerides (which make up cooking oils) tend to become rancid with time as they react with oxygen. This occurs because the triglyceride molecule reacts with oxygen to form carbon-centered radicals, which can create a chain reaction resulting in chemical cross-links between lipid chains. Oxygen (02) can exist as a diradical species and can do a hydrogen abstraction reaction. R represents the rest of the triglyceride OR oleic acid OR linoleic acid structure. Draw the Lewis structure for dioxygen (0,) and draw a resonance structure of dioxygen in its diradical form: Draw a hydrogen abstraction reaction of diradical oxygen with oleic acid (a monounsaturated fatty acid). Which hydrogen(s) is(are) most easily abstracted? Why?
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