Help in organic chemistry Draw or provide each of the following: A specific example of the...
1. Reductive amination (Carey, Section 22.10) is an important C-N bond forming strategy widely used in the synthesis of biologically active natural product. It's a powerful and reliable strategy that avoids the problem of overalkylation that often accompanies direct alkylation of amines with alkyl halides (Figure 1). secondary amine r tiary amine quemary sa Figure 1: Yields are generally poor as product amines are more nucleophilic and can also react with halide. The result is often a mixture of amines...
Organic Chemistry
1. Draw each one of the following molecules and label it as:
alkyl halide, allyl halide or vinyl halide
a) 2-chloro-3-ethylpentane
b) 6-ethyl-3-lodocyclohexene
2. Give all resonance structures of the allylic radical
intermediate that arise from reaction above. All allylic C-H on the
molecule are equivalent so only show the two resonance structures
arising from one C-H bond reacting.
3. Are the resonance structures above equivalent or
non-equivalent?
4. Give all the products expected from the reaction
above....
Draw the structures of the organic products in each reaction of the
following two-step synthesis. (Hint:
The nucleophilic amine attacks the electrophilic carbonyl carbon,
and the resulting intermediate undergoes a proton shift and
dehydration. Recall what is eliminated in a dehydration process.
The second step is a reduction reaction; the reducing agent is
NaBH3CN (or H2, metal catalyst). The aromatic ring is unaffected by
these reagents. Look at the product of the first reaction and
consider what can be easily...
Draw the structures of the organic products in each reaction of the
following two-step synthesis. (Hint:
The nucleophilic amine attacks the electrophilic carbonyl carbon,
and the resulting intermediate undergoes a proton shift and
dehydration. Recall what is eliminated in a dehydration process.
The second step is a reduction reaction; the reducing agent is
NaBH3CN (or H2, metal catalyst). The aromatic ring is unaffected by
these reagents. Look at the product of the first reaction and
consider what can be easily...
The following questions are from an experiment titled
Friedel-Crafts Alkylation for Organic Chemistry II Lab. There are
pictures attached of the lab manual.
2) Is this method a good route for the preparation of
p-sec-butyltoulene? Give reasons for your answer.
3) Why do you use a large excess of toulene. What are its
functions?
4) What is the purpose for adding the hydrochloric acid to the
water in the separatory funnel in step 5? Hint: If no acid is
added,...
need help with the boxed bullet point. writing the chemical
reaction scheme for the experiment.
Synthesis of an Alkyl Halide: A Nucleophilic Substitution Reaction, Part I Pre-lab Assignment for Synthesis of an Alkyl Halide: A Nucleophilic Substitution Reaction, Part 1 1. From The Organic Chem Lab Survival Manual ( edition) by Zubrick • Review pages 201-204: Standard Reflux. • Review pages 127-140: Extraction • Review pages 164-189: Distillation, Simple Distillation. The Distillation Example, and The Distillation Mistake. 2. Read this...
i need help with the postlab questions please
Grignard reagent THE GRIGNARD REAGENT-PREPARATION AND REACTION In this experiment, you will prepare a Grignard reagent, phenyl magnesium bromide, from bromobenzene and magnesium metal. The Grignard reagent will then react with methyl benzoate to form triphenylmethanol. Introduction Grignard reagents, such as organomagnesium halides, were discovered in 1910 by French chemist Victor Grignard. The Grignard reaction is one of the most general methods for carbon- carbon bond formation in all of organic chemistry....