E/Z Terminology & CIP Priority Rules | Stereochemistry of Double Bonds in Organic Chemistry
Автор: Sami Varjosaari
Загружено: 2021-02-13
Просмотров: 34
Описание:
In this video, we learn how to apply E/Z terminology and the Cahn–Ingold–Prelog (CIP) priority rules to unambiguously name alkenes when traditional cis/trans naming becomes unclear. These concepts are essential for mastering stereochemistry in organic chemistry.
Topics Covered:
• E vs. Z Designations
– Z (Zusammen): High-priority groups on the same side (“Zame Zide”).
– E (Entgegen): High-priority groups on opposite sides.
• CIP Priority Rules
– Rule 1 (Atomic Number): Higher atomic number = higher priority.
– Rule 2 (First Point of Difference): Compare attached atoms when ties occur.
– Rule 3 (Multiple Bonds): Treat double/triple bonds as equivalent single bonds for comparison.
• Practice Applications
– How to systematically assign priorities.
– Determining E or Z configuration on substituted alkenes.
This video makes stereochemical terminology clear, simple, and exam-ready, so you can confidently name and analyze alkenes.
Great for:
– Organic chemistry students
– MCAT/DAT preparation
– Anyone learning stereochemistry and IUPAC nomenclature
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