"Draw the structure of the major organic product of each of the following four reactions (one in the first file, two in the second file). Indicate stereochemistry if appropriate." Please see the attached files.
Consider the bromination of the compound 2-methyl 1-pentene in the attached file. 1. write the basic structure of the product of the bromination of 2-methyl 1-pentene, without regard to stereochemistry. 2. Does the product have any chiral carbons? If so, identify them with an circle. 3. How many stereoisomers are for
How many different tetrapeptides containing 2 molecules of alanine and 2 molecules of valine could theoretically exist? What are they? Write in shorthand.
Draw the structure for: a) 4-methyl-2-chloro pentanal b) trans-3-chloro-2-fluoro cyclopentanone c) 3,5-dipropyl benzaldehyde d) 1,3 cycloheptadione
Before spectroscopy was invented... a) Draw the structures of these two isomers. b) A turn of the 20th century chemist isolated an aromatic compound... Please see attached for further explanations
On the attached pages are the combined IR, 1H NMR and 13C NMR for Problems 1 and 2. Systematically solve the structure for each one. Provide the structure in the space attached, also, fill in the information requested on the table attached. Thank you!
Please help to solve the attached chemistry problems.
I am trying to come up with a structure for a conjugated diene that would give the same product when HBr is added in either a 1,2-addition or in a 1,4-addition.
There are actuallly two isomeric 2,4-dinitrophenylhydrazones of 2-pentanone. Draw the structures of these isomers. 2-pentanone also forms a derivative on treatment with semicarbazide. Note that semicarbazine has two -NH2 groups that might react with the carbonyl of the ketone to form the semicarbazone. Explain why it reacts as
When 1-pentene reacts with N-bromosuccinimide, two products with the formula C5H9Br are obtained. What are these products and how are they formed?
Is carrageen digestible by humans and why?
Compound A is optically active and has the molecular formula C5H10O. On catalytic hydrogenation (addition of hydrogen) of A, Compound B is obtained. Compound B has the molecular formula C5H12O and is optically inactive. Give the structure for Compounds A and B.
Part I: Refer to attachment for stereochemistry. Part II: TEMP(C) mmHg TEMP(C) mmHg Benzene 30 120 Toluene 30 37 40 180 40 60 50 270 50 95 60 390
Please refer to attachments provided for the full problem descriptions.
Structural Isomers Fill in the table on page 2 as described below for each structural isomer of dichloropentane. 1) Write a condensed structural formula. 2) Write the IUPAC name. 3. Give the number of chiral carbons. Go back to the structural formula and put an asterisk (*) next to each chiral carbon. 4) Construct and us
The stereochemistry of the more highly substituted alkenes is difficult to define using the cis and trans designations. Therefore, a more systematic manner of indicating stereochemistry in these systems has been developed that uses an E and Z nomenclature. Draw the structures of the E and Z stereoisomers of 1,4-diphenyl-2-butene
Draw an example of a meso compound with the formula C9H20.
1. Draw the structure of the major organic product for each of the reactions shown below. Be sure to indicate stereochemistry, where appropriate. A B
Draw the structure of the major organic product for each of the reactions shown below. Be sure to indicate stereochemistry, where appropriate.
Please identify the structure giving the following spectra (NMW, IR, Mass Spec, etc.) (attached) and state how you arrived at your structure (give reasons such as peak identifcation and mass, etc.).
I attempted some of this but I am clueless as to some of the other stuff. Can you help? 2) Why are the products attached to C3 of 1,4 pentadiene more acidic than the methyl hydrogen atoms of propene? Maybe you can help me with this one. Are the C3 atoms more acidic because there is more s character involved with the ato
What is the absolute stereochemistry of the asymmetric carbon in compound O? When compound O is treated with lithium diisopropyl amide, followed by allyl bromide, compound P is produced as a single stereoisomer. What is the absolute stereochemistry of the newly produced asymmetric carbon in P? Provide concise explanations for th
Draw the possible chair forms of cis and trans 1-isopropyl-3-methylcyclohexane. Are the two forms identical, enantiomeric, or diastereomeric? In each case, indicate which chair term will be more stable and explain why. Is either of these molecules chiral?
Draw the structure of the major organic product for each of the reactions shown below. If you can show stereochemistry, where relevant will help me out. Please see the attached file for full problem description.
I have tried to work out the following problem. Attached to this is a file that show NMR, IR and Mass spec info. I have come up with what I think the compound is but it does not work because the formula has more than one o. I have circled the carbonyl peak as well as the sp3 C-H peak.
Suggest structure fragmentation patterns that account for the following observed peaks in the mass spectra. A) 5-methyl-2-hexanone, m/e= 71, 58, 43 B) C6H5CH2OCH3, m/e= 122, 121, 91, 77 C) 1-bromopropane, m/e= 124,122, 43, 29, 15
A)Draw the most stable chair conformation of cis-1-cyclopropyl-2-methlcyclohexane. b) Draw the most stable conformation of trans-1-isobutyl-4-methylcyclohexane in both the chair conformation and the wedge structure
A) Draw the most stable chair conformation of cis-1-cyclopropyl-2-methlcyclohexane. B) Draw the most stable conformation of trans-1-isobutyl-4-methylcyclohexane in both the chair conformation and the wedge structure.
I'm having some problems identifying the unknown compound based upon the information given. I provided as much information as I could with a possible compound, but I don't think it is correct. Can you please help me? Thanks! An unknown compound containing C, H, and one kind of heteroatom only shows a molecular ion peak
Steam distillation may be used to separate a mixture of p-nitrophenol and o-nitrophenol. The ortho isomer distills at 93 degrees Celsius, the para isomer does not. Explain.