It's anti markownikoff addition
David Whittaker has written: 'Stereochemistry and mechanism' -- subject(s): Stereochemistry
Leo H. Sommer has written: 'Stereochemistry, mechanism and silicon'
William James Hamilton has written: 'Mechanism and stereochemistry studies in the synthesis and interconversion of oxaziridines and nitrones'
In the stereochemistry of hydration of a carbon-carbon double bond, the water molecule can add to either side of the double bond carbon, leading to the formation of two possible stereoisomers: a syn addition, where the hydroxyl and hydrogen groups are on the same side (cis), and an anti addition, where they are on opposite sides (trans). The stereochemistry is governed by the orientation of the reacting groups and the mechanism of the reaction.
The synthesis of E and Z α-phenylcinnamic acid can be achieved through the Wittig reaction, which involves the reaction of an aldehyde or ketone with a phosphonium ylide to form an alkene. By selecting appropriate reactants with specific stereochemistry, either the E or Z isomer can be obtained. Moreover, the stereochemistry of the product can be controlled by the choice of the phosphonium ylide used in the reaction.
2-Bromopentane is typically synthesized by reacting 1-pentene with hydrobromic acid (HBr) in the presence of a radical initiator like benzoyl peroxide. This reaction follows an anti-Markovnikov addition mechanism, where the bromine atom is added to the less substituted carbon of the double bond in 1-pentene.
The major product in a stereo-selective addition reaction is determined by analyzing the stereochemistry of the reactants and the mechanism of the reaction. Factors such as steric hindrance, electronic effects, and the type of reagents used can influence the stereochemistry of the final product. Understanding how these factors affect the reaction can help predict the major stereochemical outcome.
mechanism. mechanism.
What is a defense mechanism
In a stereoselective reaction, the reactants can potentially form multiple stereoisomers, but one stereoisomer is favored over the others. In a stereospecific reaction, the reactants can also form multiple stereoisomers, but only one specific stereoisomer is produced.
The reaction between fumaric acid and 13-cyclopentadiene forms a Diels-Alder adduct. In this reaction, only one product is formed due to the regioselectivity and stereoselectivity of the Diels-Alder reaction. The reaction proceeds through a concerted mechanism to give a single product with specific stereochemistry.
mechanism. mechanism.