N-Methylbenzamid Chemische Eigenschaften,Einsatz,Produktion Methoden

R-S?tze Betriebsanweisung:

R20/21/22:Gesundheitssch?dlich beim Einatmen,Verschlucken und Berührung mit der Haut.

S-S?tze Betriebsanweisung:

S24/25:Berührung mit den Augen und der Haut vermeiden.

Chemische Eigenschaften

N-methylbenzamide is an off-white crystalline solid.

Verwenden

N-Methylbenzamide is an important pesticide intermediate. It acts as a potent PDE10A (phosphodiesterase with a remarkable localization as the protein is abundant only in brain tissue) inhibitor.

Air & Water Reaktionen

Insoluble in water.

Reaktivit?t anzeigen

N-METHYLBENZAMIDE is an amide. Amides/imides react with azo and diazo compounds to generate toxic gases. Flammable gases are formed by the reaction of organic amides/imides with strong reducing agents. Amides are very weak bases (weaker than water). Imides are less basic yet and in fact react with strong bases to form salts. That is, they can react as acids. Mixing amides with dehydrating agents such as P2O5 or SOCl2 generates the corresponding nitrile. The combustion of these compounds generates mixed oxides of nitrogen (NOx).

Brandgefahr

Flash point data concerning N-METHYLBENZAMIDE are not available, however, N-METHYLBENZAMIDE is probably combustible.

Synthese

Add benzoic acid (977 mg, 8 mmol), dry DCM (20 mL) and catalytic amount of DMF in a 100 mL round-bottom flask. Cool the reaction mixture to 0°C and stir for 5 minutes. Add (COCl)2 (0.89 mL, 1.3 equiv.) dropwise to the reaction mixture and stir at room temperature for 4 hours. Concentrate the resulting mixture under reduced pressure to obtain acid chloride. Add catalytic amount of 4-dimethylaminopyridine, dry DCM (15 mL), MeNH2 (2 (M) in THF) (5.19 mL, 1.3 equiv.) and Et3N (1.56 mL, 1.4 equiv.) to the mixture in a 100 mL round-bottom flask. Cool the reaction mixture to 0°C. Add acid chloride (1.0 equiv.) dropwise at 0°C. Stir the reaction mixture at room temperature for 12 hours. Add water (40 mL) and seperate the organic layer. Extract the aqueous layer with DCM (3 x 30 mL). Wash the combined organic layer with saturated aqueous NaHCO3 (30 mL) solution followed by water (30 mL). Dry the organic layer over Na2SO4 and concentrated under reduced pressure. Purify the crude mass by silica gel column chromatography (20% ethyl acetate in hexane as eluent) to obtain N-methylbenzamide. DOI: 10.1002/anie.202203539

N-Methylbenzamid Upstream-Materialien And Downstream Produkte

Upstream-Materialien

Downstream Produkte

N-Methylbenzamid Anbieter Lieferant Produzent Hersteller Vertrieb H?ndler.

Firmenname	Telefon	E-Mail	Land	Produktkatalog	Edge Rate
XINGTAI XINGJIU NEW MATERIAL TECHNOLOGY CO., LTD	+8617731987558	xingjiu@xingjiubiotech.com	China	989	58
Xiamen Wonderful Bio Technology Co., Ltd.	+8613043004613	Sara@xmwonderfulbio.com	China	283	58
Hebei Yanxi Chemical Co., Ltd.	+8617531153977	allison@yan-xi.com	China	5857	58
Nanjing Deda New Material Technology Co., Ltd	+8613223293093	bella@njdeda.com	China	80	58
Hebei Chuanghai Biotechnology Co,.LTD	+86-13131129325	sales1@chuanghaibio.com	China	5889	58
Guangzhou Tengyue Chemical Co., Ltd.	+86-86-18148706580 +8618826483838	evan@tyvovo.com	China	148	58
Anhui Ruihan Technology Co., Ltd	+8617756083858	daisy@anhuiruihan.com	China	973	58
Hebei Longbang Technology Co., LTD	+86-18633929156 +86-18633929156	admin@hblongbang.com	China	941	58
Hebei Mojin Biotechnology Co.,Ltd	+8613288715578	angelia@hbmojin.com	China	1176	58
Shanghai Likang New Materials Co., Limited	+86-16631818819 +86-17736933208	3684455296@qq.com	China	9300	58

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