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Questions tagged [synthesis]

Synthesis is a purposeful execution of chemical reactions to obtain the desired product. Applies to long and complex natural product syntheses as much as to short one or two-step syntheses. This also covers synthetic problem sets and retrosynthetic analyses.

16 votes
4 answers
5k views

Why are solid phase organics often conjugated to HCl?

Many uncharged organic compounds are sold in solid phase with HCl conjugate - e.g. the antihistamine diphenhydramine.HCl or the derivitizing agent pentafluorobenzyl hydroxylamine.HCl, among many ...
Drew Steen's user avatar
4 votes
2 answers
15k views

How to prepare potassium cyanide from potassium ferrocyanide

How do we prepare potassium cyanide from potassium ferrocyanide? It is something which I am curious about, but cannot find the answer. I am studying inorganic chemistry but this reaction cannot be ...
Swapnava Chaudhuri's user avatar
17 votes
2 answers
50k views

Reactions of alcohol with sulfuric acid

I knew two chemical reactions of alcohol with sulfuric acid $\ce{CH3CH2OH + H2SO4 -> CH2CH2}$ Here product is having a double bond (ethene) and this reaction happens at 443 K temperature. $\ce{...
manshu's user avatar
  • 734
7 votes
1 answer
15k views

Preparation of oxalic acid from acetylene

I think that using ozonolysis would be a good idea to prepare oxalic acid from acetylene. Upon ozonolysis of acetylene we would get glyoxal: $$\ce{O=CH-HC=O}$$ Would I obtain the oxalic acid upon ...
Gummy bears's user avatar
24 votes
1 answer
1k views

Interlocked cyclic compounds

Being new to chemistry, there may ought to be some properties I couldn't understand fully. One of them being cyclic compounds. One particular question about this is, whether these cyclic compounds, ...
čaritisio's user avatar
23 votes
3 answers
585 views

Energy-efficiency aside, what are the chemical constraints on CO₂ capture and methanation?

Synthesising $\ce {CH4}$ from air and water (in a non-biological process) has been proposed as one form of energy storage. What are the chemical constraints at play here? That is to say, what sort of ...
410 gone's user avatar
  • 1,530
21 votes
2 answers
5k views

What is the mechanism of the reaction between hexane-2,5-dione and nitrous acid?

I don't understand the mechanism of the first reaction; I tried different ways but I can usually find how to make the ring without the double bonds, but it's obviously not the right thing; I think ...
Jake Q's user avatar
  • 213
11 votes
1 answer
12k views

Nitration of pyrrole with sulfuric and nitric acids

Would 2,5-dinitropyrrole be a product of nitration of pyrrole with $\ce{H2SO4/HNO3}$? It seems that 2,5-dinitropyrrole is not formed when using $\ce{Ac2O/HNO3}$ (ref 1). Is this just because of the ...
J. LS's user avatar
  • 2,590
8 votes
2 answers
596 views

What does the "h" "k" and "(5.2.2.02,6)" mean in dibenzo(h,k)-4-oxatricyclo(5.2.2.02,6)undec-8,10- diene-3, 5-dione?

I am preparing to do an experiment that involves synthesizing dibenzo(h,k)-4-oxatricyclo(5.2.2.02,6)undec-8,10- diene-3, 5-dione via a Diels-Alder reaction. Could someone please explain the ...
liya77's user avatar
  • 637
5 votes
1 answer
261 views

Has tellurium(II) iodide been properly characterized ever?

According to Wikipedia, tellurium tetraiodide decomposes on heating: $$\ce{TeI4 ->[\Delta] TeI2 + I2}$$ However, the reaction is somewhat wrong as according to this 2008 paper: Solid tellurium ...
Nilay Ghosh's user avatar
  • 26.3k
11 votes
1 answer
476 views

Were gold(II) complexes synthesized for the first time in 2017?

Recently in the Google news feed, I discovered this news: Gold stabilized in very rare oxidation state +II Missing golden link found: Divalent gold complex isolated for the first time in a ...
Nilay Ghosh's user avatar
  • 26.3k
11 votes
3 answers
2k views

Getting 3,4-dimethylhex-3-ene from but-2-ene

How can one get 3,4-dimethylhex-3-ene from but-2-ene ? $\hskip2in$ Using $\ce{Br_2}$ then two equivalents of $\ce{CH_3CH_2MgBr}$, I can get the corresponding alkane (3,4-dimethylhexane) but I don't ...
Hippalectryon's user avatar
7 votes
1 answer
3k views

Synthesis of 2-methyl-4-nitrophenol from benzene?

Benzene first reacts with the reagents $\ce{CH3Cl/AlCl3}$, to attach a methyl ($\ce{CH3}$) group to the benzene ring. Then I suggested reacting with $\ce{OH-}$. Because the methyl group is an ...
Karen Palacios Alfonso's user avatar
6 votes
1 answer
2k views

Can I synthesize iron acetate like this?

The oxidation state of the iron doesn't matter too much; I am just trying to make an attractive red-brown ink. Here are some instructions I prescribed to a friend. Here's an approximately decent ...
Simon Kuang's user avatar
5 votes
3 answers
5k views

Can salicylic acid be synthesized from salicylaldehyde?

You have a bottle of salicylaldehyde. And you want to make salicylic acid from salicylaldehyde. You can use all reagents and catalyst to make salicylic acid. I think salicylic acid can be synthesized ...
lambda23's user avatar
  • 2,518

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