
Catalysis Web Pages for Pre-University
... Rates of reactions and catalysis .......................................................................................................... 4 The Arrhenius equation .................................................................................................................. 4 Equilibrium and ca ...
... Rates of reactions and catalysis .......................................................................................................... 4 The Arrhenius equation .................................................................................................................. 4 Equilibrium and ca ...
Experiment 7 – Dehydration of Methylcyclohexanols
... product. The regiospecificity of the reaction is dependent on Zaitsev’s rule, where the major product tends to be the more substituted alkene. When two different products are possible, these products are constitutional isomers of each other or in this case can be referred to as regioisomers. The typ ...
... product. The regiospecificity of the reaction is dependent on Zaitsev’s rule, where the major product tends to be the more substituted alkene. When two different products are possible, these products are constitutional isomers of each other or in this case can be referred to as regioisomers. The typ ...
Chemistry Crunch #12.2: Organic Reactions KEY Why? Learning
... 3. Summarize. In a characteristic addition reaction: a) There will always be 2 reactant(s) and 1 product(s). b) The hydrocarbon reactant will always have a double or triple bond, or in other words, the hydrocarbon will be unsaturated. c) We learned how to classify many non-organic chemical reactions ...
... 3. Summarize. In a characteristic addition reaction: a) There will always be 2 reactant(s) and 1 product(s). b) The hydrocarbon reactant will always have a double or triple bond, or in other words, the hydrocarbon will be unsaturated. c) We learned how to classify many non-organic chemical reactions ...
Organic and Biochemical Molecules 1. Compounds composed of
... Non-superimposable mirror images. This is relatively straight-forward to determine for organic compounds. If an sp3 carbon has 4 different groups bonded to it, it will be an optically active (i.e. chiral) carbon. b. Geometric Isomers Alkenes with 2 of the same groups bonded across a double bond and ...
... Non-superimposable mirror images. This is relatively straight-forward to determine for organic compounds. If an sp3 carbon has 4 different groups bonded to it, it will be an optically active (i.e. chiral) carbon. b. Geometric Isomers Alkenes with 2 of the same groups bonded across a double bond and ...
Chapter 1 Chemical Bonding and Chemical Structure
... • Sometimes called the Hofmann hypobromite reaction • Cl2 is sometimes used in place of Br2 • A primary amide is the required starting compound ...
... • Sometimes called the Hofmann hypobromite reaction • Cl2 is sometimes used in place of Br2 • A primary amide is the required starting compound ...
Ring-closing metathesis

Ring-closing metathesis, or RCM, is a widely used variation of olefin metathesis in organic chemistry for the synthesis of various unsaturated rings via the intramolecular metathesis of two terminal alkenes, which forms the cycloalkene as the E- or Z- isomers and volatile ethylene.The most commonly synthesized ring sizes are between 5-7 atoms; however, reported syntheses include 45- up to 90- membered macroheterocycles. These reactions are metal-catalyzed and proceed through a metallacyclobutane intermediate. It was first published by Dider Villemin in 1980 describing the synthesis of an Exaltolide precursor, and later become popularized by Robert H. Grubbs and Richard R. Schrock, who shared the Nobel Prize in Chemistry, along with Yves Chauvin, in 2005 for their combined work in olefin metathesis. RCM is a favorite among organic chemists due to its synthetic utility in the formation of rings, which were previously difficult to access efficiently, and broad substrate scope. Since the only major by-product is ethylene, these reactions may also be considered atom economic, an increasingly important concern in the development of green chemistry.There are several reviews published on ring-closing metathesis.