2-Methylbenzophenone Ndi CAS 131-58-8
2-Methylbenzophenone ndi mankhwala a benzophenone, omwe ndi mankhwala abwino kwambiri. Nthawi yomweyo, ma ketone ndi omwe amapanga mamolekyu ambiri achilengedwe, monga zinthu zogwirira ntchito, zonunkhira ndi mamolekyu a mankhwala. Ma ketone onunkhira ndi zinthu zofunika kwambiri popanga zinthu zachilengedwe, zomwe zimapezeka kwambiri m'mapangidwe azinthu zachilengedwe ndipo zimagwiritsidwa ntchito kwambiri m'zinthu zomwe zimagwira ntchito m'thupi.
| Chinthu | Muyezo |
| Maonekedwe | Madzi opanda mtundu wachikasu pang'ono |
| Kuyesa | ≥99.0% |
| Madzi | ≤0.20% |
Potetezedwa ndi mpweya wopanda mpweya, 2-methylphenylsulfonylhydrazide (1.1 mmol), benzonitrile (1.0 mmol), palladium catalyst (2 mol%) ndi biquinoline (bq, 3 mol%) zinamwazidwa mu organic solvent (2 mL) ), kenako H2O (2 mmol) inawonjezedwa, ndipo kutentha kunakwezedwa kufika 80°C kwa maola 6. Kenako yankho la reaction linachotsedwa katatu ndi Et2O (5 mL), magawo a organic anaphatikizidwa, ndipo solvent inaumitsidwa ndi kupsinjika kochepa. Chogulitsa chosaphika chomwe chinapezekacho chinayikidwa pa column chromatography pa column ya silica gel (300-400 mesh), ndipo zotulutsira zinali petroleum ether , kuti mupeze chinthu chomwe chikufunidwa 2-methylbenzophenone. Kapangidwe ka mankhwala: Madzi opanda utoto kapena achikasu owala owonekera. Malo osungunuka ndi pafupifupi 134°C. Gwiritsani ntchito ngati mankhwala ochiritsira.
200kgs/ng'oma, matani 16/chidebe cha 20'
250kgs/ng'oma, matani 20/chidebe cha 20'
1250kgs/IBC, matani 20/chidebe cha 20'
2-Methylbenzophenone Ndi CAS 131-58-8
