Cetylpyridinium Chloride Phase Transfer Catalyst Daim Ntawv Qhia

2026 Peb Hlis 9, 10, Zhengzhou- Daim ntawv thov no muab cov lus qhia siv tswv yim rau kev sivCetylpyridinium Chloride (CPC, CAS 123-03-5)raws li ib tug theem hloov catalyst nyob rau hauv cov organic synthesis. Cov lus pom zoo yog ua raws li cov qauv kev lag luam thiab yog npaj rau R & D chemists thiab cov kws tshaj lij kev tsim khoom ua haujlwm hauv cov tshuaj nruab nrab, tshuaj zoo, thiab cov khoom siv tshwj xeeb.

Khoom tom qab

Cetylpyridinium Chloride (CPC)yog quaternary ammonium ntsev nrog cov mis molecular C₂₁H₃₈ClN thiab molecular hnyav 339.99 g / mol. Nws yog muab raws li ib tug dawb mus rau pearl hmoov nrog ib tug purity ntawmNtau dua lossis sib npaug li 99%thiab melting point ntau ntawm 80-86 degree. Lub compound yog soluble nyob rau hauv dej, ethanol, thiab chloroform, thiab yog ruaj khov nyob rau hauv ib txwm cia tej yam kev mob nrog lub txee lub neej ntawm 24 lub hlis thaum khaws cia rau hauv lub thawv kaw nyob rau hauv ib tug txias, qhuav qhov chaw.

Theem Hloov Catalysis Mechanism

CPCua haujlwm raws li theem hloov pauv catalyst los ntawm kev pab txhawb kev tsiv teb tsaws ntawm hydrophilic anions los ntawm theem aqueous mus rau theem organic. Lub quaternary ammonium cation ua khub nrog cov reactive anion, tsim ib tug lipophilic ion khub uas yog soluble nyob rau hauv organic solvents. Cov txheej txheem no ua rau muaj kev cuam tshuam ntawm cov dej- soluble reagents thiab cov organic-soluble substrates nyob rau hauv cov mob me me, feem ntau nrog cov tshuaj tiv thaiv zoo dua thiab cov txiaj ntsig zoo dua piv rau cov tsoos ob- theem tshuab tsis muaj catalyst.

Cov yam ntxwv tseem ceeb ntawm kev siv tshuab muaj xws li:

• Anion hloov efficiency:CPC zoo hloov hydroxide, cyanide, halide, thiab permanganate anions hla cov theem ciam teb.
• Reaction acceleration:Qhov nce ntxiv ntawm cov tshuaj reactive anions nyob rau hauv cov organic theem accelerates nucleophilic hloov pauv thiab oxidation cov tshuaj tiv thaiv.
• Cov mob me me:Ntau qhov kev tshwm sim tshwm sim ntawm chav tsev kub lossis cua sov nruab nrab (40-60 degree), txo qis kev siv hluav taws xob thiab degradation ntawm rhiab substrates.

Cov txheej txheem siv tswv yim

Raws li kev siv cov qauv hauv kev lag luam thiab kev tshawb fawb, cov lus qhia hauv qab no tau pom zoo rau CPC- cov tshuaj tiv thaiv catalyzed:

• Catalyst loading:2-5 mol% piv rau substrate feem ntau yog txaus rau feem ntau nucleophilic hloov cov tshuaj tiv thaiv. Kev thauj khoom siab dua (txog 10 mol%) tuaj yeem xav tau rau sterically hindered substrates.
• Qhov kub thiab txias:Cov tshuaj tiv thaiv tuaj yeem ua tau ntawm 25℃thiab 80 degree. Kev kub siab dua tuaj yeem xav tau rau cov tshuaj tiv thaiv sluggish tab sis yuav tsum sib npaug tiv thaiv substrate stability thiab sab kev txaus ntshai.
• Aqueous theem tej yam kev mob:Rau kev hloov pauv cov tshuaj tiv thaiv anion, tswj cov dej pH ntawm 10 thiab 12 feem ntau yog qhov zoo. Rau nruab nrab lossis acidic substrates, pH ntau ntawm 7-9 yuav tsim nyog dua.
• Kev xaiv cov kuab tshuaj:Cov organic solvents xws li toluene, dichloromethane, ethyl acetate, thiab chlorobenzene yog sib xws. Polar aprotic cov kuab tshuaj zoo li acetonitrile tuaj yeem siv tau tab sis tuaj yeem txo cov theem kev sib cais.

Substrate thiab Reaction Type Suitability

CPCtau pom zoo rau cov tshuaj tiv thaiv hauv qab no hauv kev lag luam thiab kev tshawb fawb daim ntawv thov:

• N-Alkylation:Alkylation ntawm amines, amides, thiab heterocyclic compounds. Cov txiaj ntsig zoo li ntawm 75% mus rau 95% nyob rau hauv cov xwm txheej zoo.
• O-Alkylation:Etherification ntawm phenols thiab cawv. Phenolic substrates feem ntau hnov ​​​​mob sai dua li aliphatic cawv.
• C-Alkylation:Alkylation ntawm active methylene tebchaw thiab aromatic substrates. Lub sijhawm tshuaj tiv thaiv feem ntau ntev dua piv rau heteroatom alkylation.
• Oxidation:Permanganate thiab hypochlorite oxidation ntawm cawv thiab alkenes. CPC txhim khu kev hloov ntawm oxidizing hom mus rau hauv cov organic theem.

Txhawm rau kom tau txais txiaj ntsig zoo tshaj plaws, cov substrates yuav tsum tau soluble hauv cov organic hnyav los yog muaj lipophilicity txaus los faib rau hauv cov organic theem thaum cov tshuaj tiv thaiv.

Formulation thiab Compatibility Notes

Thaum siv CPC hauv ntau- cov qauv tsim, cov ntsiab lus hauv qab no yuav tsum tau txiav txim siab:

• Surfactant compatibility:CPC yog sib xws nrog tsis yog -ionic thiab cationic surfactants. Nws yuav tsum tsis txhob siv nrog anionic surfactants vim muaj kev pheej hmoo ntawm nag lossis daus los ntawm ion khub tsim.
• Cov teebmeem Electrolyte:High concentrations ntawm inorganic ntsev nyob rau hauv lub aqueous theem yuav txo tau cov efficiency ntawm anion hloov. Deionized dej los yog tsawg-ionic- cov kev daws teeb meem yog qhov zoo dua.
• pH stability:CPC tseem nyob ruaj khov nyob ntawm pH ntau ntawm 4-10. Sab nraum qhov no, hydrolysis lossis degradation yuav tshwm sim nyob rau lub sijhawm ntev.
• Kub stability:luv-lub sij hawm raug kub txog li 100℃tsis ua rau muaj kev puas tsuaj loj. Rau ncua sij hawm cov tshuaj tiv thaiv, kub hauv qab 80℃raug pom zoo.

Kev Tswj Xyuas Zoo thiab Cov Ntaub Ntawv

Txhua pawg ntawm CPC muab los ntawmAlfa Tshuajyog kuaj rau purity (Ntau dua los yog sib npaug rau 99%), melting point (80-86 degree), zoo li (dawb rau pearl hmoov), thiab hnyav hlau cov ntsiab lus ( txhuas tsawg dua los yog sib npaug rau 0.002%). ACertificate of Analysis (COA)thiabDaim Ntawv Qhia Txog Kev Nyab Xeeb (SDS)yog muab nrog rau txhua yam khoom xa tuaj. Batch- cov ntaub ntawv tshwj xeeb muaj nyob rau thaum thov.

Rau kev nug, kev txhawb nqa kev txhawb nqa, lossis kev cai ntim khoom, thovtiv tauj peb pab neeg technical. Cov ntaub ntawv khoom ntxiv, suav nrog daim ntawv qhia tag nrho cov khoom lag luam, muaj nyob ntawm peborganic chemistry khoom ntau yam.

Hais txog Alfa Chemical Co., Ltd.

Alfa Tshuajyog ib lub chaw tsim tshuaj zoo thiab tshuaj intermediates chaw tsim tshuaj paus nyob rau hauv Zhengzhou, Suav teb, ua hauj lwm thoob ntiaj teb kev lag luam xws li txheej, nplaum, roj hmab, yas, thiab tshuaj tshwj xeeb. Tag nrho cov khoom yog ISO 9001 tau ntawv pov thawj thiab txhawb nqa thoob ntiaj teb kev xa khoom sai.