2. Using curved arrows to symbolize the flow of electrons, write the stepwise mechanism for the...
5. There is a large decrease in the bulk of the rope of Nylon-6,10 upon drying. Explain this observation. 6. Using full structural formulas, draw a typical portion of a Nylon-6,6 molecule; that is, expand a portion of the formula given in Equation 22.15. Show at least two hexanedioic acid units and two 1,6-hexanediamine units. 7. Draw formulas that illustrate the hydrogen bonding that may exist between two polyamide molecules after fibers have been "cold-drawn." 8. Nylons undergo depolymerization when...
Using curved arrows to symbolize the flow of electrons, write a mechanism for the transesterification shown below. 1. NaOCH; -OH + CH2CH2COCHE CH2CH3 2. Neutralize
Using curved arrows to designate the flow of electrons, provide a detailed stepwise mechanism for the reaction of 3,4-dimethyl-3-pentanol as a starting material, with 3,4 -dimethyl-3-pentene (45% yield) and 3,4-dimethyl-3-chloropentane (55%) as the products.
write a mechanism (curved arrows the flow of electrons) for each of the following dehydrobromination (E1 elimination) reaction Write a mechanism (curved arrows showing the flow of electrons) for each of the following dehydrobromination (El elimination) reactions. + HBr (EtOH; &B ELOH
#1. Using curved arrows to symbolize electrons, write a complete reaction mechanism for the bromination of acetanilide to create the product. Include the resonance structures for any charged, delocalized intermediates that are involved. #2. Why does performing the experiment at 0 degrees Celsius help you identify some of the relative rates of reactivity? #3. Explain why a methyl group is a mildly activating group while a methoxy group is strong activating. #4. Explain why-- NH2 act as an activator and--...
Using curved arrows to indicate the flow of electrons, illustrate the mechanism that accounts for the process shown below. Include all reaction intermediates.
Acid-catalyzed addition of water to an alkene yields an alcohol with Markovnikov regiochemistry. The electrophilic H+ adds to the sp2 carbon with the most hydrogens to yield the most stable carbocation intermediate, which then adds water to give the product alcohol. Because a carbocation intermediate is formed, rearrangements can occur prior to the addition of water. To avoid the possibility of rearrangement and still give a Markovnikov alcohol, alkenes can instead be treated with mercury(II) acetate in aqueous THF and then subsequently...
1. Provide the products of the reaction below and a detailed reaction mechanism using curved arrows to indicate the movement of electrons. (a) (b) КОН (c) Note that formation of 4- or 7-membered rings is disfavored. Hiyo KOH acidie workup 2. An interesting problem that involves a bit of review (imines and Grignard chemistry) and application of what you previously learned to a new reaction: The Carbon of an imine functional group (i.e. R.C-NR) is sufficiently electron deficient to be...
Follow the flow of electrons indicated by the curved arrows in the following reaction, and write the products that result. Use a charge tool to specify formal charge letting Marvin adjust the number of hydrogens at the charged atom. Do not separate different structures with signs. -H Hас —с -дсн, CH3
10.Using curved arrows, show the flow of electrons for the below reaction lone pairs of electrons as needed. H + ** Homo H H-N + H-o-Nho omo + H-N-H + O-N- 11. Draw the skeletal (line-bond) form of CH3CHCICH2CH(CH3)2 and draw a constitutional isomer of this molecule that contains exactly one 4° carbon atom. 12. Draw the Lewis dot structure for nitric acid, HNO, Indicate the formal charge of each atom. 13. Draw the Lewis dot structure (expanded form) of...