Draw the other stereoisomers of the product formed from the reaction between furan and maleic anhydride. If we look at the molecule in this way, with the hydrogens highlighted on the ends of the diene and the dienophile, it may be easier to see the stereochemical relationships in the exo and endo products.
2. (15 pts) Write accurate structures for each of the following: a) a Newman diagram of sec-butyl bromide. b) the best Lewis structure for HCONH2. c) the gauche conformation of 1-bromopropane. d) the most stable free radical that has the formula C5H11. e) an amine that includes a tert-butyl group . plus other possibilities
Apr 19, 2012 · Reactants are graded depending on their purity. For some reactions, we need highly pure reactants whereas, for some other reactions, we don’t need so. The quality, state, and the energy of the reactants determine the reaction and the products formed after the reaction. Products. Products are the new substances formed after a reaction.
Draw the structure of the neutral product formed in the following reaction.
On bringing a burning splinter at the mouth of the test tube the gas evolved bums with a pop sound. Identify ‘X’ and ‘Y’. Also write the chemical equation for the reaction. Write the name and structure of the product formed, when you heat ‘X’ with excess cone, sulphuric acid. (2016 OD) Answer: X = Ethanol = CH 3 CH 2 OH or
The more stable (major) alkene product is 1-methylcyclohexene and the minor product is 3-methylcyclohexene. d) 2,2-Dimethylcyclohexanol. The initially formed 2° carbocation undergoes a methyl shift to form a more stable 3° carbocation, which loses a proton to form 1,2-dimethylcyclohexane as the major product.
Jun 06, 2017 · 1. Setting the Scene: Different Kinds of Meanings of Genotype and Phenotype. The meaning of the terms given at the start of the introduction may at first seem clear, but conceptual questions have accompanied or been implied by the use of the terms since their introduction to English-language readers by Johannsen’s (1911) “The Genotype Conception of Heredity” and up until the present.
Usually both are formed, and they have a special name -- they are anomers of each other. The carbon between the two oxygens in the hemiacetal group is called the anomeric carbon. If the OH group is down (in a drawing with the ring oxygen to the rear center or right), the designation for that anomer is alpha.
In this example, a bromo radical is formed. The reversal of the regiochemistry of addition is the result of the reversal of the order in which the two components add to the alkene. Radical addition leads to the formation of the more stable radical, which reacts with HBr to give product and a new bromo radical: Anti-Markovnikov