Syntese af 2-iodo-4-methylopropiophenon med mikrobølgeovn

StarWars

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Fremstilling 2-iodo-4-methylpropiophenon Den såkaldte iodoketon Placer i bægerglasset 4-methylpropiophenon 150 ml (148,90 g) N-iodosuccinimid 270 g p-Toulenesulfonsyremonohydrat 228 g Dæk glasset med glaslåget, men ikke tæt. Sæt det i mikrobølgeovnen, og indstil den til 700w. Vi bestråler 3 gange i 1 minut med 30 sekunders pause mellem sessionerne. Vi venter, indtil blandingen er kølet ned til stuetemperatur. Hæld 300 ml vand, eventuelt med is, i blandingen, og bland grundigt. Der dannes en jodketon næsten med det samme Vi filtrerer på filteret og 2 eller 3 gange mere Vi vasker med vand Krystallisering 1 g jodketon tilsættes 0,5 ml eller 0,7 ml dcm blandet i en beholder og sættes i fryseren -20 natten over Efter natten på filteret og affugtes derefter. Udbytte 210g til 215g ren iodoketon
 

ADATA

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Er der nogen erstatning for N-iodosuccinimid, det er dyrt
 

StarWars

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Dette er en meget hurtig måde at lave 2i4m på, og man behøver ikke at have laboratorieudstyr.
 

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Denne metode er blevet offentliggjort før, men fordi N-iodosuccinimid
Dyrt og ikke let at købe, så jeg prøvede det ikke

Jeg vil gerne vide, om der er nogen alternativer
N-iodosuccinimid
 

StarWars

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N-bromosukcynoimid, så lavede du 2bromo4methylopropiophenon
 

hustla

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Hvor længe skal jeg sætte den i mikrobølgeovnen? 3 minutter, som du skrev? o_O
 

StarWars

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tak 3gange 1min vent hvert 30sek
 

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StarWars

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Selvfølgelig
 

dodobird

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@StarWars bro have u used this method with success?

Any video on this method
 

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Har du nogensinde gjort dette?
Tiden er den samme 1 minut og 30 sekunder 3 gange?
 

StarWars

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Du kan også gøre som det
 

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ADATA

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Bromering af 4-methylpropiophenon
Ingen reaktion under brug
Ingen timing?
 

Blammo

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Any replacement for PTSA?
 

w2x3f5

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something is missing in this reaction, especially considering that the acid is solid and N-iodosuccinimide
 
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