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Suggest structure fragmentation patterns that account for the following observed peaks in the mass spectra.
Draw the possible chair forms of cis and trans 1-isopropyl-3-methylcyclohexane. Are the two forms identical, enantiomeric, or diastereomeric?
Why are the products attached to C3 of 1,4 pentadiene more acidic than the methyl hydrogen atoms of propene?
Please identify the structure giving the following spectra (NMW, IR, Mass Spec, etc.) .
Write the basic structure of the product of the bromination of 2-methyl 1-pentene, without regard to stereochemistry.
The chlorination of propane yields 4 different dichloropropanes of formula C3H6Cl2. Using the following information to identify dichloropropanes A,B,C,D.
Treatment of one stereoisomer of 2-iodo-3-phenylbutane with base, yields (E)-2-phenylbutene.
A large number of polycyclic benzenoid aromatic hydrocarbons are known. One of these, benz/a/pyrene, is a powerful carcinogen found in tobacco smoke.
Below are three isometric chlorobutanes and their 13C NMR spectral data. Match the spectral data to the correct structures.
Assign R, S configurations to each indicated chirality center in the molecule below. The configuration of this carbon atom is (red arrow).
Four possible structures are shown below for the complex trans-{ML4(n^2-C2H4)2}. L is a neutral 2 electron sigma only donor.
When a monosaccharide reacts to give the pyranose form from its open-chain form, how many distinct pyranose forms are possible?
The compound 2-methyl-1,4-pentadiene would be classified as what type of diene?
Draw structures for all possible isomers for C5H10Br2, and name each isomer by the IUPAC system.
Are there differences between the cholesteryl benzoates and the cholesteryl esters having long carbon chains? Why or why not?
When glucose is placed in water two stereoisomers are formed, one with the new OH on the opposite side of the ring than the 6th carbon.
What is the chemical name and structure of the sweetener used in Equal and Nutrasweet?
Calculate a reactivity order for each type of hydrogen atom in propylbenzene.
For the compound below, determine how many peaks would be present in the compound's normal 13C decoupled spectrum.
How many congeners exist in the monobromo homolog group? Draw their structures.
The solvolysis of benzyl chloride proceeds via a carbocation intermediate and occurs more rapidly than the solvolysis of 2-chloro-norbornane.
Does beta-D-fructose in its cyclic form have the same number of chiral carbons as beta-D-glucose? Show the structural formulas and chiral carbons.
Give the IUPAC name of the major organic product of the following two-step synthesis. Pay attention to stereochemistry if appropriate.
Structures of two of the four isomers of tris(alaninato)cobalt(III) are shown below. Expand on this generic to indicate the absolute configuration.
Nitric oxide, mononitrogen monoxide, is a gas at room temperature. Its Lewis structure has an unpaired electron and violates the octets rule.