2-3-Dimethyl pyrazine (CAS#5910-89-4)

Ọrọ Iṣaaju

2, 3-Dimethylpyrazine jẹ ẹya Organic yellow. Atẹle jẹ ifihan si diẹ ninu awọn ohun-ini rẹ, awọn lilo, awọn ọna iṣelọpọ ati alaye ailewu:

Didara:

2, 3-Dimethylpyrazine jẹ awọ-awọ-awọ-ofeefee ti o lagbara. O ni olfato ti acetone tabi awọn ethers ati pe o le tuka ni awọn ọti-lile ati awọn ohun elo ether.

Lo:

2, 3-Dimethylpyrazine jẹ lilo akọkọ bi ohun elo ibẹrẹ fun iṣelọpọ Organic. O le ṣee lo bi ayase fun esterification, carboxylation ati enolation labẹ ipilẹ awọn ipo.

Ọna:

2, 3-dimethylpyrazine le wa ni ipese nipasẹ SN2 fidipo ethyl iododide tabi ethyl bromide pẹlu 2-aminopyrazine. Awọn ipo ifaseyin nigbagbogbo ni a ṣe ni iwaju alabọde ipilẹ, gẹgẹbi iṣuu soda ethoxide. Lẹhin iṣesi, ọja ibi-afẹde naa jẹ gba nipasẹ crystallization tabi isediwon.

Alaye Abo:

2, 3-Dimethylpyrazine ni majele kekere labẹ awọn ipo lilo deede. Gẹgẹbi kẹmika kan, olubasọrọ pẹlu awọ ara, oju, ati atẹgun atẹgun le fa ibinu. Awọn ilana aabo ile-iyẹwu igbagbogbo gẹgẹbi wọ awọn ibọwọ yàrá aabo, awọn goggles, ati ohun elo aabo atẹgun yẹ ki o tẹle nigba lilo. Ni ọran ti olubasọrọ lairotẹlẹ tabi ifasimu, wẹ tabi yọ agbegbe ti o kan kuro ni kiakia ki o wa imọran iṣoogun.