3 4-Dimethylbenzophenone (CAS# 2571-39-3)

Ọrọ Iṣaaju

3,4-Dimethylbenzophenone, tun mọ bi ketocarbonate tabi Benzoin. Atẹle ni apejuwe ti iseda rẹ, lilo, igbaradi ati alaye ailewu:

Iseda:

-Irisi: 3,4-Dimethylbenzophenone jẹ okuta funfun ti o lagbara.

-Solubility: O fẹrẹ jẹ insoluble ninu omi, ati pe o ni solubility giga ni awọn nkan ti o wa ni erupẹ bi ethanol ati dimethylformamide.

-Melting ojuami: Iwọn yo ti 3,4-dimethylbenzophenone jẹ nipa 132-134 iwọn Celsius.

-Awọn ohun-ini Kemikali: O jẹ reagent elekitirofiki ti o le kopa ninu ọpọlọpọ awọn aati bii idasile mnu hydrogen, ifoyina-idinku ifoyina laarin erogba ketone ati methyl.

Lo:

- 3,4-Dimethyl benzophenone jẹ lilo akọkọ bi reagent fun awọn aati iṣelọpọ Organic.

-O le ṣee lo bi reagent elekitirofiki lati kopa ninu awọn aati afikun elekitirofilic, iṣelọpọ carbonate ketone ati awọn aati miiran.

-It tun le ṣee lo bi awọn kan photosensitizer fun lithography, ina curing ati awọn miiran oko.

Ọna Igbaradi:

Ọna kan fun igbaradi ti -3,4-dimethyl benzophenone jẹ iṣesi iṣelọpọ ti barone. Awọn igbesẹ ti ifarabalẹ jẹ bi atẹle: Ni akọkọ, styrene ti ṣe atunṣe pẹlu apọju bromine labẹ ina tabi ina ultraviolet lati dagba β-bromostyrene. β-bromostyrene ti wa ni idahun pẹlu hydroxide (fun apẹẹrẹ, NaOH) lati ṣe 3,4-dimethylbenzophenone.

-Ọna igbaradi miiran ni lati dahun acetophenone ati sodium bromide labẹ awọn ipo ipilẹ lati ṣe ina 3,4-dimethyl benzophenone.

Alaye Abo:

- 3,4-Dimethylbenzophenone jẹ kere majele.

-Yago fun olubasọrọ ara ati ifasimu nigba lilo.

-Ruyi olubasọrọ ita si awọ ara, yẹ ki o fi omi ṣan lẹsẹkẹsẹ pẹlu ọpọlọpọ omi.

-Ti o ba fa simu, gbe lẹsẹkẹsẹ si aaye ti o ni afẹfẹ daradara.

-A ṣe iṣeduro lati wọ awọn ibọwọ aabo ti o yẹ ati ohun elo mimi lakoko iṣẹ.

- Nigbati o ba nlo ati titoju, jọwọ tẹle awọn ilana ṣiṣe ailewu ati gbe si ibi ti awọn ọmọde le de ọdọ.