Jodiranje 4'-metilpropiofenona do 2-jodo-4'-metilpropiofenona z jodom/koper(II) oksidom. Video priročnik.

beetlebb

Don't buy from me
New Member
Joined
Jan 7, 2022
Messages
35
Reaction score
28
Points
18
Selektivno bromiranje lahko izvedete tudi z bakrovim (II) bromidom
 

CryoThio

Don't buy from me
Resident
Language
🇺🇸
Joined
Apr 7, 2023
Messages
200
Reaction score
67
Points
28
Opišite, kaj imate v mislih. Ali bo bakrov bromid nadomestilo na istem mestu, če da, kakšni so reakcijski pogoji/format?
 

WillD

Expert
Joined
Jul 19, 2021
Messages
774
Reaction score
1,061
Points
93
Ne. pojavijo se težave s čistostjo in izkoristkom.
Da, vendar so mehanizmi reakcij nekoliko drugačni.
 

CryoThio

Don't buy from me
Resident
Language
🇺🇸
Joined
Apr 7, 2023
Messages
200
Reaction score
67
Points
28
Ali lahko opišete, kako bi bila videti reakcija z bakrovim bromidom?
 

Venom2021

Don't buy from me
New Member
Joined
Jul 24, 2022
Messages
33
Reaction score
28
Points
8
Priprava 2-jodo-4-metilpropiofenon Tako imenovani jodoketon V čašo damo 4-metilpropiofenon 150 ml (148,90 g) N-jodosucinimid 270 g Monohidrat P-tulenesulfonske kisline 228 g Kozarce ne tesno pokrijemo s steklenim pokrovom. Postavimo v mikrovalovno pečico in jo nastavimo na 700 W. Osvetljujemo trikrat po 1 minuto s 30-sekundnimi prekinitvami med posameznimi seansami. Počakamo, da se romantika ohladi na temperaturo. Vanjo vlijemo 300 ml notranje vode z ledom in jo temeljito premešamo. Jodoketon bo nastal skoraj takoj Prefiltriramo na filtru in še 2 ali 3 krat speremo vodo Kristalizacija 1g jodoketona dodamo 0,5ml ali 0,7ml dcm zmešamo v posodi in damo v zamrzovalnik -20 čez noč Po noči filtriramo in nato posušimo. Izdelek 210 g do 215 g čistega jodoketona bo v redu?
 

4-MMC118

Don't buy from me
New Member
Joined
May 14, 2023
Messages
2
Reaction score
0
Points
1
Uporablja se jod CAS7553-56-2 ali CAS 12190-71-5?
 

Precursor-supplier

Don't buy from me
Resident
Language
🇺🇸
Joined
May 23, 2023
Messages
86
Reaction score
42
Points
28
Deals
5
CAS 12190-71-5
 

Attachments

  • L9WxbgEAih.png
    L9WxbgEAih.png
    514.7 KB · Views: 368

4-MMC118

Don't buy from me
New Member
Joined
May 14, 2023
Messages
2
Reaction score
0
Points
1
Ali se lahko uporablja nano bakrov oksid? Ali bo naknadna obdelava problematična?
 

WillD

Expert
Joined
Jul 19, 2021
Messages
774
Reaction score
1,061
Points
93
manjša kot je mreža oksida, težje ga bo ločiti od zmesi
 

Angel M. Richards

Don't buy from me
New Member
Joined
Jan 31, 2024
Messages
1
Reaction score
0
Points
1
Seveda bo iz propiofenona nastal metkatinon. Metode so, afaik, enake; preprosto ga zamenjajte in izvedite aritmetiko z moli itd. Vendar, tako kot tema, tudi jaz nisem kemik.
 

TucoSalamanca.

Don't buy from me
Resident
Language
🇹🇷
Joined
May 7, 2023
Messages
201
Reaction score
27
Points
28
vsaj koliko ur je treba mešati z ogrevanjem 24 ur je preveč
 
Top