03-04-02 12:27
No 276618
I looked in my aromatic textbook and found the method you are referring to:
toluene + sulfuryl chloride + dibenzoylperoxide à benzAL chloride
benzAL chloride + sodium hydroxide à benzaldehyde.
This sounds messy. How would it be done in practice?
(Hive Prodigy)
03-04-02 12:56
No 276627
I do not know about that synthesis, but have you seen
../rhodium /benzylc
The last entry, chlorination of toluene with calcium hypochlorite, can be tweaked to give the same benzal chloride given in your synthesis.
PrimoPyro
Wir pumpen..... (Klatschen) Sie oben!
(Stranger)
03-04-02 17:28
No 276723
Yeah i saw that when i was using TFSE
I have been unable to locate the patent though
this sounds like more of a hive bee sort of thing to do
im more a newbee so i'll prolly just get straight benz for 1st time
(Hive Prodigy)
03-04-02 17:56
No 276731
Have you read Patent US1280612 ?
Wir pumpen..... (Klatschen) Sie oben!
(Newbee)
03-04-02 20:26
No 276775
If you need benzaldehyde from toluene then UTFSE with my nickname (look for thread called New old amph synth).There you will find all details.In short it`s toluene and MnO2
Everybody in the house with a half an ounce
Not weed I meant coke dumb ass sit down!
(Master Searcher)
03-05-02 02:22
No 276958
The patents I posted in this thread use toluene and MnO2.
Post 208702 (Antoncho: "The easiest synth of benzaldehyde from toluene", Chemistry Discourse)
http://www.geocities.com/dritte123/PSPF.
(Hive Bee)
03-05-02 09:00
No 277094
Benzh from benzyl alcohol in DMSO with dichromate and H2SO4 is easy, takes an hour and a half and the chemicals can easily be obtained OTC from non-science-non-chemical sources.
xoxo
Julia
(Chief Bee)
03-05-02 15:19
No 277166
Chlorox + tetrabutylammonium bromide (TBAB) also gives benzaldehydes from benzyl alcohols in high yield (see my page).