Question

Markovnikov regiochemistry results from a. The high kinetic reactivity of 1 carbon of the carbon carbon double bond b. A hydride shift c. The reactivity stability of 2 possible cation intermediates d. The efficiency cycloaddition reactions The trans stereochemistry of bromine addition to alkenes results from the formation of a. Cyclonium ion b. Carbocation c, Carbine d. Bromonium ion In the addition of HBr, HCI, HI, CL_2, Br_2 and I_2 to alkenes the pi-electrons function as a. Electrophile b. Nucleophile c. Acid d. Base Write the mechanism for the reaction between 2, 2-dimethy l-3-pentanol and hydrogen bromide. Show how you would make 2-hexanol from acetylene.

Answer 1

Ans 5. c. The relative stability of 2 possible cation intermediates .

The reaction involves formation of two products out of which the compound that has halogen on the more substituted carbon is the major organic product and the compound with halogen atom on the less substituted carbon is the minor organic product.