Organic Chemistry

any imformation about the heavy metal content in the leaves of the plant isoberlinia doka??

Okay so does anybody know anything that I should study that could be on my ACS standardized final for Ochem 1 and 2? I have it in the morning and I have no idea what I should know... I didnt even know we were having a cumulative final over a year of work... damn lol

my teacher recently asked me how to seperate mixture of succinic acid and succinic anhydride in to pure components? my answers ranged from simple base neutraizations to metal complex formation. but i think most suitable way would be to separate by different solubility in some solvent. any guesses?

Does anyone know how I can go about synthesizing octane-1,5,7-trione from an acyclic 5 carbon or less precursor?

Can someone please explain to me the difference... Thank you

I've been doing organic chemistry in my year 12 chemistry class, and I wanted to know how I'd go about naming certain chemicals. My teacher and I went through some of the molecules that i'd drawn, and found the only names we could think of for them. but, I'd like to know how they really are named, if they actually exist, and (if they do exist), what they are used for. the list is attached, so if you can help me, that would be appriciated. Hard-to-name molecules.doc

Ill keep it short. I'm taking an organic chem class and given that times are hard for all, i was hoping i can get away with purchasing the traditional model kit ( Ball and stick) - i was wondering, are there any interactive- user friendly virtual model Kits out there that one can download for free. Something simple yet will allow me to build different structures and extends the utility of molecular models. As i said this is my first Ochem class so im trying to keep it simple. Thanks guys

Hi all, firstly I should say that I am not a chemistry student and I have virtually no education in chemistry. However I am a Computer Science student and I decided to build software for an assignment that would take a bunch of elements from the periodic table, and connect/bond them together in the correct geometrical form using Lewis Structures and VSEPR. So far my software correctly predicts the geometry of any simple molecule and displays it in 3D. But when looking into creating larger moleculular structures using the rules for Lewis Structures I cannot find any reasoning as to why they are connected the way they are and thus cannot predict the molecular geome…

I am trying to elucidate the mechanism of a staining reaction, but in order to do so I need to know about the solubility of phenol in water and in ethanol (ethyl alcohol at 95%) and the relationship of the solubility to temperature. I know that in water the solubility of phenol increases with temperature, but is the solubility of phenol in ethanol higher or lower than in water at room temperature and above? Any help or pointers would be greatly appreciated. If you have read so far, thank you. The situation I have is actually a little different than I originally made out; I have fuchsin (cationic dye) dissolved in phenol, which is itself in a lipid enviroment.…

Only allowed to use molecules that are 3 or less carbons to make the attached molecule. So I've started making this molecule and im stuck. I started with propane. Propane + Br2 + light --> bromopropane---> Mg, ether---> grignard + propanal + Hcl --> Ch3CH2CH(Ch3)OH---> PBr3 --> CH3CH2CH(CH3)Br.... added more Br, then NaOH +H20 to get BrCH(OH)CH(Ch3)Br--> PCC--> BrC=OCH(Ch3)Br + Ch3Ch2Ch2MgBr + Hcl---> see 2nd molecule attached. and now im stuck. i have a feeling theres an easier/simpler way to do this and i cant think of it. and if someone could help to get the last CH3CH2 on there and replace the H (red) to a CH3, that would be …

Why is an hot ethanol/hot water solvent good for recrystallizing benzoic acid?

What is the significance of Indole ring structures in biological systems?

When a non volatile impurity is present in the liquid being distilled, head temprature will be lower than the pot temprature. How can i explan this.....????:

I have a anthracene with a Br on the 3 and OMe on 10. I know me stands for methyl. What do you call it with an Oxygen attached. Am I on the right path in naming this 3-bromo-10methlyoxianthracene

Does DMSO react easily with vinyl groups?

I am having some trouble grabing the concept of cross linking. I was wondering if someone could explain how it works. thanks

I am homeschooled and for my at home chemistry course I am learning about the melting points in various chemicals. As a bonus in the material, I am supposed to try to supercool Cetyl Alcohol and Palmitic Acid. But I can't seem to get the chemicals below their freezing points without freezing them.

What does one mean when one says that longer chains of hydrocarbons have stronger attraction hence higher boiling point? Is there some different force holding molecules together? I thought the strong and weak nuclear forces wre only for the nucleus...

Hello all, I have a midterm on Monday and was hoping I could get a question answered. Why doesn't the benzene grab that proton from the H2SO4? My answer key has the molecule on the right grabbing the proton instead. My logic: if the benzene grabbed the proton, a secondary allylic carbocation would be formed with a lot of conjugation in the molecule. I would expect this to be more stable than the tertiary carbocation that is formed if the molecule on the right gets protonated. So why does the benzene not get protonated? Thanks!

Hi, I am a chemical pharmacologist of Barcelona. My research is about neurotoxicity of amphetamine derivatives. I have to synthesize a pure enantiomer of an amphetamine derivative (R (-) MDMA), which has no psychoactive activity. However it is important to study its involvement in some neurotoxic lesions. To isolate it from the (+/-) MDMA it must be derivatized with 1(9-fluorenyl)ethyl need chloroformate solution but this reagent is very expensive. In sigma Aldrich the cost is 793 € for 10 ml and I need about 30-40 ml. Anyone have any idea if I can use any similar reagent more affordable? or how do I get the reagent at a reasonable price? Thank you

I'm just getting stumped on how to go on this one. I'm supposed to draw the major organic product formed at each step. A) I figure the bromine is added but can't decide where. I think it would go on the propyl chain but am not sure. B) Second part I see as an E2 reaction forming a double bond wherever the bromine is removed from. C) Third part I thought those were were used to break a triple bond and insert a double bonded O as well as some H. But of course I've formed no triple bonds anywhere. So as you can see, I'm just all lost

Ether has very similar structure as alcohol. Why there is hydrogen bonding in alcohol but not in ether? Oxygen atoms have two lone pairs in both cases.

Hello Everyone. I'm trying to remove the ammonium hydroxide (BP 37.7) residues from some DCM (B.P. 40) that I have sitting around. The question is whether these two form an azeotrope - I've searched everywhere and found almost nothing on this - and whether there is some other process I should consider before going to the ol' vigreaux. any help would be greatly appreciated! cheers Jeff

Hey guys, new member here, i always have a hard time writing my lab discussion for organic because i dont really understand it that well, and hoping someone can give me a lending hand, Merged post follows: Consecutive posts merged What happens when NaOH is added to 3-nitroaniline??, i know a yellow color appears, but can someone give me an explanation as to what actually happens and what the color indicates??

hi... i wanted to know whether it is possible to produce acacetin by chemical means, also how feasible is the process and how economical is it?? Am planning for a project and desperately need the information...... please help..........