Chapter 6, Problem 99P

Interpretation Introduction

Interpretation:

For the given enzyme catalyzed reaction, the given reactant undergoes $syn$ or anti addition should be determined.

Concept introduction:

Nucleophile: Nucleophiles are electron rich compounds which donates electrons to electrophilic compounds which results in bond formation.

Nucleophilic nature depends on the negative charge present in the molecule, the solvent in which it present and the electronegativity of the atom.

Electrophile: Electrophiles are electron deficient compounds which accepts electrons from nucleophiles that results in bond formation.

Chemical reaction involves bond making and breaking of two or more reactants in order to attain products from the reactants.

The curved arrows are generally used to indicate the flow of electrons present in the reaction.

Ozonolysis Reaction: It is an oxidative reaction which is used to oxidize the carbon-carbon double and triple bond.

Oxidation Reaction: It involves loss of electrons, addition of oxygen atoms or removal of hydrogen atoms.

Reduction Reaction: It is just opposite of oxidation reaction which involves removal of oxygen atoms or addition of hydrogen atoms and addition of electrons.

Addition Reaction: It is defined as chemical reaction in which two given molecules combines and forms product. The types of addition reactions are electrophilic addition, nucleophilic addition, free radical additions and cycloadditions. Generally, compounds with carbon-hetero atom bonds favors addition reaction.

In addition reaction of alkenes when two substituents are placed on same side of $C=C$ then it is named as $syn$ addition if it is placed on opposite sides of $C=C$ it is defined as anti-addition.

Geometric isomers: Two compounds are considered as geometric isomers of each other if both contains same number of atoms but different in their arrangement that is compound is regarded as cis if identical substituents are placed on same side and trans if they are placed on the opposite sides.

Erythro product: It is the representation of carbohydrates in Fischer projection when two same substituents are placed on the same side.