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?

I do not know about that synthesis, but have you seen

https://www.thevespiary.org/rhodium/Rhodium/chemistry/benzylchloride.html

The last entry, chlorination of toluene with calcium hypochlorite, can be tweaked to give the same benzal chloride given in your synthesis.

                                                    PrimoPyro

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Wir pumpen..... (Klatschen) Sie oben!

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

Have you read

Patent US1280612

?

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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

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Everybody in the house with a half an ounce
Not weed I meant coke dumb ass sit down!

The patents I posted in this thread use toluene and MnO2.

Post 208702

(Antoncho: "The easiest synth of benzaldehyde from toluene", Chemistry Discourse)

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http://www.geocities.com/dritte123/PSPF.html

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

Chlorox + tetrabutylammonium bromide (TBAB) also gives benzaldehydes from benzyl alcohols in high yield (see my page).