Organic Chemistry

Hi everyone, Can someone please explain to the best of their ability: WHAT does "proton transfer" mean? There are no reactions that protons actually jump from one molecule to the next, are there? I thought only electrons move?

I have a way of doing this but I feel like there's got to be a quicker route. Here's how I did it: 1. HCN 2. LiAlH4 3. H2O 4. H2SO4, -H2O 5. H2, Pd (i.e. cyanohydrin formation, reduction, acid-catalyzed elimination to get rid of OH, then H2/Pd to get rid of double bond) Could it maybe be done with a Wittig reagent?

Sir, I want to know how can 'Glycine' be made soluble in any single solvent or combination of solvents. I further wish to mix this solution in NitroBenzene. So whethter it is possible or not

Hello, I'm taking orgo II at the moment and I'm looking for someone to study with. The basic technique I've found works is to have each person ask questions of the other, back and forth. I'm in the USA and I can talk using Skype or Google Talk. Thanks.

do alkenes show metamerism? Can anyone pls explain?

Why is it that more substituted carbons have higher chemical shifts, showing that they are less electron dense and exhibit less shielding? I have always thought that adjacent alkyl groups add electron density via induction. Thanks.

HOOC-CH2-CH2-CH-CH2-CH2-COOH COOH Sorry, I am not able to type it more clearly. It's name is 4-carboxyheptane-1,7-dioic acid. Can it also be called as pentane 1,3,5,tricarboxylic acid... Pls help me in a vivid manner...

If gaseous ammonia shows an infrared active vibration at 3414 cm-1 what wavelengths (in Å) would you observe the Stokes and Anti-Stokes lines using the red 6328 Å line from a He-Ne laser?

In a cyclic alkene with one double bond and a methyl group on the carbon of that double bond, is it necessary to state the position of the methyl group? Do i really need to write 1-methylcyclobutene for instance?? wouldnt you just assume the methyl group is on the first carbon of the double bond? if you didnt have a number? Thanks.

How is it that Arginine is labeled R and Aspartate is labeled D? Is there a source on the list, the 'magic 20' at least with their respective letter and a reason why? I assume this is something similar to Pb Lead-Plumbum? I don't remember this from the biochemistry books I've read. They where all from the 70's, would that have mattered? I will be receiving my fully up to date biochemistry reference title, but not for another three weeks!

This is purely for my own curiosities sake... If one were to take an ionic solution in an alcohol, and then run current through it, would the product be the alkoxide in solution? Something along the lines of sodium chlorode in methanol with a few volts using graphite electrodes. Would this produce hydrogen at one electrode (from the alcohol) and chlorine at the other electrode (from the salt) leaving sodium methoxide in solution? What if the anion was something more difficult to oxidize, such as sulphate? Thanks!

Hi guys, I was wondering if a second nitration of p-nitrobromobenzene would work using a catalytic amount of H2SO4. I was thinking it wouldn't since both the bromine and the Nitro group are deactivating substituents, and since its a catalytic amount of acid it wouldnt add a second nitro group onto the ring. Is this reasoning correct?

What gas would cause ABS to dissolve? I investigated a simple home water toilet shutoff valve that failed, causing significant water damage. When I inspected the 14 year old valve I found that the plastic shaft (that you turn to shut off the water to the toilet) had been entirely dissolved away, allowing significant water to be released into the room. The same type of valve in another bathroom was also partially dissolved. But similar valves for the sinks in the house showed no such degradation. The difference between the sink valves and toilet valves? The toilet valves were chrome plated brass. The sink valves were brass, unplated. The plastic expose…

1.. Look at the H which has the arrow pointed to it, and find the number of peaks in the signal: http://img10.imageshack.us/my.php?image=118awin09ps3q4.png I need help with A and D. For A, I can't tell whether it's a nonet (so eight H neighbors+1= 9 peaks=nonet) or whether it's a quartet (just take one methyl group so 3+1= quarter= 4 peaks) or whether you just take one methyl group since the other one is in the same env't and then also take that CH2 group..so (3+2 then +1= sextet= six peaks)? For D: there's symmetry so do you look at only one CH2 group so 3 peaks (triplet) OR do you count both neighbors, so 4+1= pentet 2. What is the last reagent?…

I make use of essential oils and want to partner up with someone who does ozone treatments. I woudl like to feel more comfortable about putting the two together... The ozone is unstable and the extra oxygen is supposed to be freed inside the tissues. The oils are small and move quickly into the tissues. My hunch is that the oils will help to move the extra oxygen into the tissues without changing the actual molecular structure of the oil since moving oxygen is part of the oil's job inside a plant. Seems that they would have an affinity or magnetism to move the oxygen. What is the likely outcome of having essential oils on the body and then exposing the body to s…

Hey to all you science folk! can anyone tell me how to turn eucalyptus oil into a solid that will again disolve in water without loosing any of its potency.

I was recently posed an interesting question: Viscosity is generally related to the strength of intermolecular bonds in a fluid. Strong bonds lend to greater viscosity. So how is it that something like oil, which is non-polar and would have low intermolecular forces, can be more viscous than water, which experiences hydrogen bonding? The only reasonable explanation I can think of is that oil, with its hydrogen content, actually does experience hydrogen bonding. But I don't think that's right. Is there any more logical reason?

Hi. I am reviewing some practice questions and I'm having a hard time understanding how to know which isomer would form using electrophilic aromatic substitution. I followed Huckel's rule so I know all of the options are aromatic so I have decided that is not how you figure it out. Please help! I attached a copy of the problem (the answer is A)

Hi. I just did a lab where we dehydrated 2-methylcyclohexanol. We were told it would form 1-methylcyclohexene and/or 3-methylcyclohexene and we are asked to determine the major product. I figure the major product is 1-methylcyclohexene because it is the most substituted c=c. However, we are supposed to determine it using C13 NMR. We are given the "hint" to figure out how the spectra of the 1-and 3- methylcyclohexenes would differ. I don't know how to figure this out. Any suggestions?

Why are IR and NMR always used together to determine a molecule’s structure. Why can NMR not be used alone to determine structure? I know that nuclear magnetic resonance tells us what the carbon "skeleton", if you will, looks like and what types/locations of hydrogens there are...isnt that enough? As far as I can tell, infrared spectroscopy only reveals the presence/absence of primary functional groups...why is this important...well I know why functional groups are important, but couldnt we just get by with NMR? Is this situation akin to NMR being the drawing in balck and white, and IR being the color that makes it look better? lol To me, IR seems superflou…

Hi, I just had a test question for a synthesis problem (you have methoxybenzene and you want 1-methoxy-4-propylbenzene) and it was considered completely wrong, I was wondering why: Methoxybenzene ---> (1) + FeBr3, Br2 (2) + Mg, ether (3) +1-bromopropane, ether --> 1-methoxy-4-propylbenzene The right answer is (1) + AlCl3, 1-chloro-1-oxopropane (2) H20 (3) Zn(Hg), aq HCl. I understand why the right answer is right, but I don't understand how my answer is completely wrong, and I got zero points for it. Merged post follows: Consecutive posts mergedanyone? any help would be great, thanks!

For a test, I was flipping through some other Organic Chemistry I websites to find some extra practice problems for a test and I noticed at one it said that the stereochemistry of SOCl2 is retained when used with a nonpolar solvent like DMSO but when a polar solvent is used the stereochemistry is changed to the opposite. I really didn't think too much about it and come test time, I wrote in what I remembered from said website. My professor marked it wrong but didn't explain why. Anyways, I really can't remember what website it was but I was wondering if anyone could confirm this and/or perhaps send a link proving how it would work.

I was wondering if I could get any help in sorting out the mollecular formula of dinoprostone based on looking at its stick figure. Thanks for the help! http://en.wikipedia.org/wiki/Dinoprostone

How would one do such a Diels Alder rxn synthesis starting with 4 carbons or less to achieve the attached molecule as your end product? In these types of problems, where does one typically start (how do you where to put the double bond(s))? Thanks so much.

Hi y'all. I just bought a 60 mL bottle of 5-Hour Energy ®. I'm thinking it's no different than a couple cups of coffee, but I'm going to list the ingredients just to be sure. If there are any bio-chemists out there who can tell me if any of the ingredients other than caffeine contribute to the "energy boost" (directly or indirectly), please point them out: -30mg niacine (as niacinamide) -40mg vitamin B6 (as pyridoxine hydrochloride) -400 mcg folic acid -500 mcg vitamin B12 (as cyanocobalamin) -10 mg sodium -1870 mg "Energy Blend"* -other ingredients** * "Energy Blend" consists of: -citicoline -glucuronolactone -N-acetyl L-tyrosine -L-phenylalanine -taur…