Reference no: EM13248581
1. Reductive amination can be used to form primary, secondary, and tertiary amines.
2. Secondary amines are more basic than primary amines due to extra electron donation by the alkyl groups.
3. Tertiary amines are more basic than secondary amines due to steric hindrance.
4. Reactions at benzylic positions have increased rates due to stabilization of charged intermediates.
5. It is possible to use amides, reductive amination, and the gabriel synthesis to give primary amines.
6. Direct alkylation is a good way of selectively getting secondary and tertiary amines.
Typically increasing resonance of an amine (e.g aniline) makes it a worse acid.
7. The Hofmann rearrangement uses an alkyl ammonium leaving group.
8. Increasing s character on a nirogen lone pair makes it less basic.
9. Phenols are more acidic than alcohols due to increased delocalization of the charge in the conjugate base.
10. Phenols are more acidic than alcohols due to less steric hindrance.
11. In the 1H NMR amine N-H peaks are in the same range as alcohol O-H peaks, and amide N-H peaks are in the same range as phenol O-H peaks.
12. N-Nitrosamine functional groups always decompose readily.
13. We can make phenol by electrophilic aromatic substitution of benzene with HO+.
14. Phenols undergo keto/enol tautomerization.
15. Meta substituents have less effect (positive or negative) on the reactivity and properties of benzene substituents than ortho or para substituents.
Determine the wind velocity
: Jane plans to fly from Binghampton, New York, to Springfield, Massachusetts, about 280 km due east of Binghampton, What was the wind velocity
|
State how many kj of heat are needed to completely vaporize
: How many kJ of heat are needed to completely vaporize 1.30 moles of ? The heat of vaporization for water at the boiling point is 40.6 kJ/mole
|
Compare the wafer throughput for positive photoresist
: The required exposure energy for a positive photoresist is 140 mJ/cm2 and for a negative photoresist is 9 mJ/cm2. Assuming negligible times for loading and unloading wafers, compare the wafer throughput for positive photoresist and negative photor..
|
Find the energy of the scattered x-ray photon
: 7 an x-ray tube is operating with energy of 16 keV the produced x-rays photon strike a target and are compton-scattered at an angle of 45 degrees, what is the energy of the scattered x-ray photon in ev
|
Explain reductive amination can be used to form primary
: Reductive amination can be used to form primary, secondary, and tertiary amines. Secondary amines are more basic than primary amines due to extra electron donation by the alkyl groups.
|
Determine the depletion scr layer width w
: An ideal abrupt silicon pn junction has a \(N_{A} = 2 x 10^{17} cm^{-3} , N_{D} = 2 x 10^{15} cm^{-3} , \) 1) With derivation steps, calculate internal potential barrier V0 at 300K and 400K, respectively
|
Determine the total magnetic flux through the cylinder
: A long, straight wire carrying a current of 3.00 A is placed along the axis of a cylinder of radius 0.500 m and a length of 2.00 m
|
Find the mass and radius of the drop
: A charged oil droplet falls 5.0 mm in 20.0 s at terminal speed in the absence of an electric field. What are the mass and radius of the drop
|
How does politics influence sport facilities for the future
: Explain the impact that external entities have on a facility. How does politics influence sport facilities for the future?
|