Organic Chemistry

We're doing figuring out an unknown experiment in my organic chem lab. We're given a list of potential chemicals, and I was sure I narrowed it down. The IR spec showed an amino group, and it is soluble in water, which means its a low molecular weight. The boiling point was 63 degrees... litmus test showed it was basic. On the given list, 2-Butylamine is shown to have a boiling point of 63. So, I was pretty sure it was that. The last test I did was to react it with phenyl isothiocyanate (in a one to one ratio) to create a phenylthiourea derivative. The solution turned green and became very hot. A sticky precipitate formed. I washed it w…

1. For cis-but-2-ene, it is said that the CH3-group is electron releasing so there is a net dipole moment pointing towards the carbon atoms of the double bond. In fact what is meant by "electron releasing" and why is CH3-group so? 2. For cis-butenedioic acid, there is intramolecular H bond between the O in C=O group and the H in O-H group. Why is the O in C=O group involved in the H bond but not the O in the O-H group? Thank you so much!

Hi folks In chemistry we're going to have a project about "colouring agent in foodstuff". We need some useful links to our project but we don't know which homepages are trustworthy. Wikipedia seems a bit abused. See Bæk, Jette, Katrine and Jon

alright i got a problem, u do know natural gas contains methane.....if so how can natural gas causes low pollution?

I have been looking for about an hour now on the net and I can't find any. I need the proton and C 13 NMR of p-cresol for a paper I have to do. Can anyone help me out with this?

Hi..how are you doing?, I have this question that been bothering me.I know that vinegar dissolves in benzene, and I found out why, but still not convinced.This drive me nuts. The answer I found is that there is a hydrogene bond established between two vinegar particles.But, where is the reaction with benzene ?! as it's the solvent .If there is an equation for this , plz help me out.Thanks

There are some life forms, especially the ones that live near ocean vents, that utilize chemosynthesis as a way to obtain energy for their cellular functions and life, much like the way surface organisms use photosynthesis for their energy. What chemicals are involved in chemosynthesis? Do they produce sugars like Glucose to be their main source of energy?

any one have picture of urea crystal and acrylic crystal? The condition for crystalizing urea and acrylic. Thanks.

I have honey about which i m not sure that it is pure or not.I hv doubt that it is made of sugar.How i can judge that?

Are there any interesting esters made from acetylsalycilic acid? If so, is it possible to simply crush up an aspirin and dissolve it in something, say acetone to isloate the needed acid?

can anyone tell me how glucosamine can be prepared in a lab??

Hi I have a couple of questions about cis-trans isomers. 1. When a molecule has one double bond and exhibits one instance of cis-trans isomerism, I put the cis or trans at the very beginning of the name right? 2. When a molecule has two or more double bonds and has 2 or more places of cis-trans isomerism, then where do I put the extra cis or trans? 3. When there are no identical groups around the double bond, do I write cis or trans depending on the orientation of the parent chain? Or do I not write cis or trans at all? Thank you so much.

How do you explain the selective dithioketalization of the Wieland-Miescher ketone on the unsaturated ketone? Similary the saturated ketone can be selectively protected by 1,3-propanediol. Almost similar conditions can be used, pTsOH in AcOH for the ketalization or in benzene for the other one? Is it Hard and Soft postulate? If yes or maybe why the thiol does not add onto the beta carbone of the unsaturated positon? Thanks for your suggestions.

Hi, my name's Graham, currently studying product design at uni. I'm trying to gather as much info as possible on the subject of head protection for cyclists, in the future. I've been looking at Aerogel's and ferrofluids as possibly providing protection in the future, but am not too sure on their possible applications, or whether they could provide protection at all. Are there any other new materials that have specific energy absorption properties that I could have over looked? If there's any links that you could provide, and personal opinions about head protection in the future, it'd be more than welcome. thanks for your time guys

Hi all, I'm new here. I needed some help with my organic homework, and I stumbled across your forums. Here are my questions. I appreciate any help! Thanks! a) propyne to 2-hexyne using propyne as the only carbon source b) butane to (2E,5E)-2,5-heptadiene, again with propyne as the carbon source c) propane to butanal (yes, that "a" is right. it's not butanol). Ethyne as an additional carbon source d)propane to a racemic mixture containing (2R,3S)-hexanediol (propane is only carbon source)

How To Make: 1. Potassium 2. Sodium 3. Hydogen 4. Oxygen 5. Magnesium 6. Sulphur 7. Nitrogen 8. Nitrous Oxide 9. Capsaesum Practicaly

Hi, can any 1 explain what is chirality in molecules and how do we find the chiral centre from a given compound, for example in citronellol(C10H20O or C10H19OH). easy explainations will be most appreciated?

Hi! Does anybody knows the chemical structure of the chitin (polysaccharide)? I am going to use cooked shells of lobsters and shrimp to filter wastewater. Will the cooked shells be effective in filtering or should I use shells that are not cooked? What do you think?

Go on then, which terpene floats your boat? limonene has a nice citrusy smell, thats my preferred terpene. although carvone has a that whole mint thing going on, two good monoterpenes there.

Hello, Why do we habe 3 peaks for CDCl3 in NMR 13C? Does it come from deuterium or chlorine?

hi, can any 1 tell me whether from a formula of an organic compound , can we deduce how many isomers will that compound have? if so how? any help will be most appreciated.

Hi all, does anyone can provide me with the ignition temperature for a methanol-water mixture 50/50% in volume, please? Thanks Same62

Alright, I have this awesome idea for something in my head, and I need a special material for it, I am not sure where to find such a material. How might I chemically make a material that can alter its shape by conducting voltages through it. For example. Raise a part when a high voltage is run through it and lower a part when low voltage is put through it. Or something along those lines. Any help would be greatly appreciated. -The Nautolian

Hello, how can we make these reactions? thank you

Hey I must seem abit stupid but I'm doing a project and this question once again has made me come to a stand still:In a reaction what would liquid ammonia and KNH2. This is with a reaction of (C6H5)3C-K+ + C6H5Cl. Any answers would be much appreciated Thanks