isibhengezo_sekhasi

umkhiqizo

2-Methoxy-3-sec-butyl pyrazine (CAS#24168-70-5)

Isakhiwo Samakhemikhali:

I-Molecular Formula I-C9H14N2O
I-Molar Mass 166.22
Ukuminyana 1g/mLat 25°C
I-Melting Point 92-94℃
I-Boling Point 50°C1mm Hg(lit.)
I-Flash Point 171°F
Inombolo ye-JECFA 791
Ukuncibilika I-Chloroform (Kancane), i-Methanol (Kancane)
I-Vapor Presure 0.0995mmHg ku-25°C
Ukubukeka Uketshezi
I-Gravity ethize 1.01
Umbala Sula engenambala
pKa 0.80±0.10(Okubikezelwe)
Isimo Sesitoreji Kuvalwe endaweni eyomile, Ngezinga lokushisa Legumbi
I-Refractive Index n20/D 1.492(lit.)
Izakhiwo Zomzimba Nezamakhemikhali Uketshezi olukhanyayo olungenambala. Ubumsulwa ≥ 99%. Ukubilisa ububanzi 92-94 °c (12.6 7千帕).
Sebenzisa Isetshenziswa njenge-essence yezimonyo yansuku zonke futhi inephunga elimnandi.

Imininingwane Yomkhiqizo

Omaka bomkhiqizo

Izimpawu Eziyingozi I-Xn - Iyingozi
Amakhodi Engozi I-R22 – Iyingozi uma igwinywe
R36/37/38 – Ukucasula amehlo, uhlelo lokuphefumula kanye nesikhumba.
R20/21/22 – Kuyingozi ngokuhogela umoya, ukuthintana nesikhumba futhi uma ukugwinyile.
Incazelo Yokuphepha S36/37/39 – Gqoka izingubo zokuzivikela ezifanele, amagilavu ​​kanye nokuvikela iso/ubuso.
S26 – Uma uthintana namehlo, geza ngokushesha ngamanzi amaningi futhi ufune iseluleko sezokwelapha.
S36/37/38 -
Ama-ID e-UN UN 3334
I-WGK Germany 3
Ikhodi ye-HS 29339900

 

Isingeniso

I-2-ethoxy-3-isopropylpyrazine iyinhlanganisela yezinto eziphilayo.

 

I-compound inalezi zimpawu ezilandelayo:

- Ukubukeka: Uketshezi olungenambala

- I-Solubility: Incibilika ku-ethanol, i-ether ne-benzene, ayincibiliki emanzini

 

I-2-ethoxy-3-isopropylpyrazine inokusetshenziswa okukhethekile:

- Ingasetshenziswa njengesibulala-zinambuzane emkhakheni wezolimo. Ekuvikelekeni kwezitshalo, ingasetshenziswa ukulawula izinambuzane ezifana nezitshalo zezitshalo emasimini omile.

- Ibuye isetshenziswe ngokujwayelekile ku-organic synthesis njenge-catalyst ne-intermediate.

 

Indlela yokulungiselela i-2-ethoxy-3-isopropylpyrazine ingatholwa ngezinyathelo ezilandelayo:

1. I-2-Pyridylcarboxylic acid ne-isopropyl bromide zisabela ngaphansi kwe-catalysis yesisekelo sokukhiqiza i-2-isopropylpyridine.

2. I-2-Isopropylpyridine isabela nge-ethanol ngaphansi kwezimo ze-acidic ukuze ikhiqize i-2-ethoxy-3-isopropylpyrazine.

 

- Iyacasula futhi iyagqwala, futhi kufanele ihashazwe ngamanzi amaningi ngokushesha ngemva kokuthinta isikhumba namehlo.

- Izimpahla zokuzivikela ezifanele njengezingilazi zokuphepha, amagilavu ​​nezingubo zokuzivikela kufanele zisetshenziswe.

- Ngesikhathi sokugcina nokuthutha, ukusabela okunamandla oksijini nama-asidi kufanele kugwenywe, izinga lokushisa eliphezulu nokukhanya kwelanga okuqondile kufanele kugwenywe.

 


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