PREPARATORY PROBLEMS - IChO 2019

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PREPARATORY PROBLEMS Making science together! Third edition (19-6-3) 51st IChO PREPARATORY PROBLEMS 2 Table of contents Preface ........................................ ........................................ ........................................ ................ 3 Fields of advanced difficulty ........................................ ........................................ ...................... 5 Theoretical PROBLEMS ........................................ ........................................ ............................. 10 Problem 1. Butadiene -electron system ........................................ ........................................ .. 11 Problem 2. Localization and delocalization in benzene ........................................ ................... 13 Problem 3.

Stereochemistry: stereoisomers in organic and inorganic chemistry, stereoselectivity in organic synthesis. Practical 1. Techniques in organic synthesis (drying of a precipitate, recrystallization, TLC). 2. Use of a spectrophotometer (mono-wavelength measurements). Important notes

  Synthesis, Organic, Inorganic, Stereoselectivity, Stereoselectivity in organic synthesis, In organic, In organic synthesis