Any reaction would do, as long as it works. Don't forget to mention catalysts or reaction environment.
2006-08-25 03:25:01 · 7 answers · asked by Dan F 1 in Science & Mathematics ➔ Chemistry
Start by reducing benzoic acid with LiAlH4 (lithium aluminium hydride) to benzyl alcohol. Then, oxidize the benzyl alcohol to benzaldehyde using PDC (pyridinium dichromate) in an anhydrous environment such as CH2Cl2 (dichloromethane).
2006-08-26 01:19:14 · answer #1 · answered by John D 1 · 0⤊ 0⤋
This Site Might Help You.
RE:
Anybody know how to synthesize benzaldehyde?
Any reaction would do, as long as it works. Don't forget to mention catalysts or reaction environment.
2015-08-12 21:52:28 · answer #2 · answered by Anonymous · 0⤊ 0⤋
Benzaldehyde can be obtained by many process. Currently liquid phase chlorination or oxidation of toluene are among the most used processes. There is also a number of discontinued applications such as partial oxidation of benzyl alcohol, alkali treating of benzal chloride and reaction between benzene and carbon monoxide.
2006-08-25 05:42:19 · answer #3 · answered by Mr. E 5 · 0⤊ 0⤋
it is normally used as a starting material because it's cheap and stable enough to be kept in the laboratories~
so u dun really haf to learn how to make it.
here are the steps:
1. pass bromine gas through a catalyst (FeBr3) and add benzene to it. you will get bromobenzene. do note that many side products are formed at the sametime.
2. pass bromobenzene into magnesium, with ether as the solvent for Mg.(this kinda reaction is known as gridnard reaction)
you will get Ph-Mg-Br.
3. pass Ph-Mg-Br with formaldehyde and you will yield a significantly high percentage of benzaldehyde.
that's all. hope this helps.
2006-08-25 04:37:25 · answer #4 · answered by whitehairydemon 2 · 0⤊ 0⤋
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They are all likely to be based on oxidation methods. See links for another examples. I found others, but while they gave some benzaldehyde, they gave much more polystyrene.
2016-04-10 02:24:59 · answer #5 · answered by Anonymous · 0⤊ 0⤋
i like the Aldrich version.
1. find Aldrich catalog
2. find benzaldehyde in said catalog
3. order benzaldehyde
4. wait for benzaldehyde to be shipped to you
5. enjoy the fake cherry scent
2006-08-25 05:56:36 · answer #6 · answered by shiara_blade 6 · 0⤊ 0⤋
This is ground control. We're giving you the nod, Tom.
2016-03-14 13:48:26 · answer #7 · answered by Shirley 3 · 0⤊ 0⤋
Sorry but I cannot help you
2006-08-25 03:31:50 · answer #8 · answered by Anonymous · 0⤊ 2⤋
this doesn't compute?
2006-08-25 03:31:49 · answer #9 · answered by Ron B. 7 · 0⤊ 2⤋