CHM2021 Note 3
One of the things I like about teaching is that it helps me realize some of
the things I take for granted that newcomers find difficult. The other night I
got this question.
How do you know to draw the Diels Alder product this way?
Note 4 (CHM2021)
So at some point during Org 2, you will probably be expected to learn a
whole slew of mechanisms.
Conversion of carboxylic acids to esters
Hydrolysis of esters to carboxylic acids
Hydrolysis of amides to carboxylic acids
CHM2021 Note 2
Once you get a handle on oxidations and reductions, you might start to
notice that with some molecules these reactions can proceed in sequences.
For example, if you start with an alkane with a CH3 group,
the alkane can be oxidized to a prim
CHM2021 Note 1
If Org 2 has an overall theme, its resonance. Todays post has a very
simple message. Atoms with lone pairs, bonds, radicals, and carbocations
can participate in resonance: atoms that lack any of these features cannot.
One way in which this
Key Concepts MAT2021
1. There is a direct correlation between pKa and leaving group ability. The
weaker the base, the better the leaving group it is.
A stronger base will NEVER be displaced from a carbonyl by a weaker base.
For practical purposes, if your
than in that of hexane, and we cannot see it at all in the spectrum of 2,2-dimethylbutane. This is
an example of a general phenomenon in mass spectrometry that increasing
base peak and usually assign it a value of 100% on the vertical axis. In the spectrum in Figure
5.5, the base peak is the line at m/z = 42. We describe the heights of the other peaks in the
spectrum as a percentage
just barely visible. Consistent with this, the fragment peaks at m/z = 55 due to loss of both H-Cl
and CH3, and at m/z = 70 due to loss of H-Cl, are very intense.
A look at CHEM2021 Organic Chemistry II
A large part of organic chemistry 1 is devoted to laying the foundations:
introducing structural concepts such as bonding, geometry,
stereochemistry, conformations, resonance, and steric effects, while