Kuhar, ki gre narobe

Z420505

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Pred časom mi je neko podjetje poslalo komplet 5clad, vendar so namesto 5bromopentena uporabili fluropenten in tako ali tako je prišel šibek in pri razgradnji v acetonu je ves bel. Zato je bil moj ideal, da naročim 5bromo in več dmf ter ponovno pripravim in upam, da bo izpadlo bolje. Kaj menite o tem?
 

WillD

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Mislim, da je težava v nečem drugem. Različica s fluoriranimi snovmi ne bi smela predstavljati težave.
 

HerrHaber

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Po mojem iskrenem mnenju sem presenečen, da je to sploh delovalo, in čeprav je znano, da terminalni atom fluora deluje v tem kontekstu, je bromid vsaj lahko (dobra) odhajajoča skupina, fluorid pa zaradi trdnosti vezi C-F nikoli. Dvojna vez je reaktivna v drugačnih pogojih, zato ne more biti najboljše reakcijsko mesto. Naredite majhno serijo s 5-bromo-1-pentenom in preverite, ali je izdelek boljši ... beljenje ob stiku z acetonom jasno kaže, da je izdelek drugačen, vendar ga po vašem optimističnem mnenju lahko imenujem nepopoln, zato manjka "rep", kot je nakazano v vašem opisu in pojasnjuje velik padec učinkovitosti. Za verjetnejše izboljšanje kakovosti bi morali uporabiti 5-bromo-1-penten ali 1-bromo-5-pentan. Nisem strokovnjak na točno tem področju, vendar se mi zdi kemija do neke mere smiselna, saj se mi zdi tudi nenavadno, da ljudje svoje napake pri pripravi opisujejo na tako reverzibilen način. Menim, da boste na koncu dobili bodisi boljšo potenco, kot je, bodisi brez bistvenih sprememb, v katerem primeru predlagam, da ga ne prodajate, saj je težava še daleč od tega, da bi bila rešena.
 

Z420505

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It worked, the batch after recooking turned right color in solvent. Also, had a very good affect. Had a white residue at bottom but I’m going to say that was a bonding problem with first cook. 5-bromo should not be substituted with fluropentane. It’s just weak and create a different chemical that what attendended.
 

HerrHaber

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if Fuoride was substituted as Bromide was intended to, you deserve some place in a decent journal publish about it. Instead the double bond reacted (most likely), which is also great for you and the anticipated product can't be else than potent by S.A.R. be careful with the side products though, (more potent is not necessarily more pure or safe). Cheers!
 

Z420505

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A lot of these Chinese companies just send whatever, most are just selling without knowing exactly what they are selling. Look at the ingredients list and discovered an error in list prior to previous orders.
 

HerrHaber

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Like one of those shops with a big advert saying "translate server error" instead the name of the shop in English
 

HerrHaber

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I accidentally treated this as a joke when in fact it isn't that much to laugh about when knowing details of how some work as I tend not to perform any tests on my regular known materials unless something seems wrong to me.
 
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