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All 10 posts Subject: Benzyl chloride from Toluene/trichloroisocyanuric Please login to post Down

acx01b
(Newbee)
10-26-04 21:06
No 537966
      Benzyl chloride from Toluene/trichloroisocyanuric

Hi,

Preparation of Benzyl Chloride (44% yield?) by refluxing Toluene and trichloroisocyanuric acid, with Benzoyl Peroxide as catalyst looks interesting...

other catalyst known ?

Organikum
(Wonderful Personality)
10-27-04 10:28
No 538090
      Yes.

other catalyst known ?
Yes! There are other catalysts!

regards
ORG

so near, so far......

moo
(Hive Addict)
10-27-04 14:59
No 538109
      It's not a catalyst, it's a radical initiator.

It's not a catalyst, it's a radical initiator.

_{fear fear hate hate}

Nicodem
(Hive Bee)
10-27-04 15:04
No 538110
User Picture       "Benzoyl peroxide" is not a catalyst

There are many radical initiators that can substitute it, practicaly any compound with the -CO-OO-CO- group will do, probably AIBN or other aza compounds would work as well. And quite probably a mercury lamp would suffice too. But as far as I know, peroxybenzoic acid anhydride (aka "benzoyl peroxide") is the only one that you can easily get OTC, so I can see no point in your question. Or are you perhaps interested in other radical initiators that might increase the yields?

�The real drug-problem is that we need more and better drugs.� � J. Ott

acx01b
(Newbee)
10-28-04 18:24
No 538346
User Picture       ok ty very much Does peroxyacetic acid ...

ok ty very much
Does peroxyacetic acid anhydride work ?
can it be formed from H2S2O8 NaOH and acetic acid ?

psyloxy
(Hive Addict)
10-28-04 23:45
No 538379
User Picture       preparation of diacetyl peroxide

Patent US2439399
Patent US2458207

...dangerous stuff !

--psyloxy--

acx01b
(Hive Bee)
11-05-04 10:55
No 539833
      what about using 2-acetoxybenzoic acid to...

what about using 2-acetoxybenzoic acid to obtain di(2-hydroxybenzoyl)peroxide ?

Aspirin + NaOH --> Na-acetate + 2-hydroxybenzoic acid
(advices for separation?)

Nicodem
(Hive Bee)
11-05-04 12:17
No 539846
User Picture       ?

Besides of being impossible to prevent the self oxydation of such a peroxyde, WHY?

What the hell is wrong with peroxybenzoic anhydride? It is OTC all over the world and it gives acceptable yields, so why do you insist on these ideas? Could you share your secret reasons with us!

“The real drug-problem is that we need more and better drugs.” – J. Ott

acx01b
(Hive Bee)
11-05-04 14:49
No 539859
User Picture       no secret reasons, the reason is that the...

no secret reasons, the reason is that the route throw aspirin to Ph-CH2Cl is funny !

sory i didn't understand your 1st match, you say di(2-hydroxybenzoyl)peroxide won't be obtained ? what will be obtained that way ?

yei
(Newbee)
11-06-04 04:10
No 539974
      sunlight

sunlight works nicely, apparently.

In a similar benzylic chlorination (with t-butyl peroxide), it was greatly superior to chemical radiacal initiators.

_{It's good to bee back! Don't trust your computer!!}

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	All 10 posts		Subject: Benzyl chloride from Toluene/trichloroisocyanuric		Please login to post		Down


		acx01b (Newbee) 10-26-04 21:06 No 537966				Benzyl chloride from Toluene/trichloroisocyanuric
						Hi, Preparation of Benzyl Chloride (44% yield?) by refluxing Toluene and trichloroisocyanuric acid, with Benzoyl Peroxide as catalyst looks interesting... other catalyst known ?



		Organikum (Wonderful Personality) 10-27-04 10:28 No 538090				Yes.
						other catalyst known ? Yes! There are other catalysts! regards ORG so near, so far......



		moo (Hive Addict) 10-27-04 14:59 No 538109				It's not a catalyst, it's a radical initiator.
						It's not a catalyst, it's a radical initiator. _{fear fear hate hate}



		Nicodem (Hive Bee) 10-27-04 15:04 No 538110				"Benzoyl peroxide" is not a catalyst
						There are many radical initiators that can substitute it, practicaly any compound with the -CO-OO-CO- group will do, probably AIBN or other aza compounds would work as well. And quite probably a mercury lamp would suffice too. But as far as I know, peroxybenzoic acid anhydride (aka "benzoyl peroxide") is the only one that you can easily get OTC, so I can see no point in your question. Or are you perhaps interested in other radical initiators that might increase the yields? �The real drug-problem is that we need more and better drugs.� � J. Ott



		acx01b (Newbee) 10-28-04 18:24 No 538346				ok ty very much Does peroxyacetic acid ...
						ok ty very much Does peroxyacetic acid anhydride work ? can it be formed from H2S2O8 NaOH and acetic acid ?



		psyloxy (Hive Addict) 10-28-04 23:45 No 538379				preparation of diacetyl peroxide
						Patent US2439399 Patent US2458207 ...dangerous stuff ! --psyloxy--



		acx01b (Hive Bee) 11-05-04 10:55 No 539833				what about using 2-acetoxybenzoic acid to...
						what about using 2-acetoxybenzoic acid to obtain di(2-hydroxybenzoyl)peroxide ? Aspirin + NaOH --> Na-acetate + 2-hydroxybenzoic acid (advices for separation?)



		Nicodem (Hive Bee) 11-05-04 12:17 No 539846				?
						Besides of being impossible to prevent the self oxydation of such a peroxyde, WHY? What the hell is wrong with peroxybenzoic anhydride? It is OTC all over the world and it gives acceptable yields, so why do you insist on these ideas? Could you share your secret reasons with us! “The real drug-problem is that we need more and better drugs.” – J. Ott



		acx01b (Hive Bee) 11-05-04 14:49 No 539859				no secret reasons, the reason is that the...
						no secret reasons, the reason is that the route throw aspirin to Ph-CH2Cl is funny ! sory i didn't understand your 1st match, you say di(2-hydroxybenzoyl)peroxide won't be obtained ? what will be obtained that way ?



		yei (Newbee) 11-06-04 04:10 No 539974				sunlight
						sunlight works nicely, apparently. In a similar benzylic chlorination (with t-butyl peroxide), it was greatly superior to chemical radiacal initiators. _{It's good to bee back! Don't trust your computer!!}

All 10 posts	End of thread	Top