Category: 5308-25-8piperazines

5308-25-8, 1-Ethylpiperazine is a piperazines compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

General procedure: A mixture of 6-chloro-4-cyclopropyl-7-fluoro-1-oxo-1,4-dihydronaphthalene-2-carboxylic acid 1a (1 g, 3.5 mmol) with N-ethylpiperazine 2c (0.6 g, 5.25mmol) was loaded in a small flask fitted with a micro condenser, placed in the microwave reactor and irradiated for 25 min at 150C under solvent free conditions. The reaction progress was monitored by TLC. Upon completion of the process, addition of hot absolute ethanol (10 mL) to the reaction mixture was followed by filtration. The filtrate was concentrated and stored at room temperature for precipitation. The solid was filtered off and recrystallized from absolute ethanol to give compound 3c., 5308-25-8

The synthetic route of 5308-25-8 has been constantly updated, and we look forward to future research findings.

Reference£º
Article; Mirzaie; Lari; Vahedi; Hakimi; Russian Journal of General Chemistry; vol. 86; 12; (2016); p. 2865 – 2869; Zh. Obshch. Khim.; vol. 86; 12; (2016); p. 2865 – 2869,5;,
Piperazine – Wikipedia
Piperazines – an overview | ScienceDirect Topics

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.5308-25-8,1-Ethylpiperazine,as a common compound, the synthetic route is as follows.

5308-25-8, 1-(bromomethyl)-4-nitro-2-(trifluoromethyl)benzene (34 g, 120 mmol) obtained in above was dissolved in dichloromethane (300 mL), followed by stirring. The reaction solution was added with 1-ethylpiperazine (15.97 mL, 126 mmol) and DIPEA (27.2 mL, 156 mmol), followed by further stirring for about 3 hours at room temperature. The reaction mixture was diluted with dichloromethane, and washed with a saturated aqueous solution of sodium bicarbonate and brine. The organic layer was dried over anhydrous sodium sulfate, filtered, and concentrated under reduced pressure to obtain the title compound (21.7 g, 57%). -NMR Spectrum (300 MHz, DMSO-MS(ESI+, m/z): 318 [M+H]+

As the paragraph descriping shows that 5308-25-8 is playing an increasingly important role.

Reference£º
Patent; HANMI PHARM CO., LTD.; BAE, In Hwan; SON, Jung Beom; HAN, Sang Mi; KWAK, Eun Joo; KIM, Ho Seok; SONG, Ji Young; BYUN, Eun Young; JUN, Seung Ah; AHN, Young Gil; SUH, Kwee Hyun; WO2013/100632; (2013); A1;,
Piperazine – Wikipedia
Piperazines – an overview | ScienceDirect Topics

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.5308-25-8,1-Ethylpiperazine,as a common compound, the synthetic route is as follows.

5308-25-8, 0.20 g of N-[4-tert-butyl-5-(2,4-dichlorobenzyl)thiazol-2-yl]chloroacetamide and 5 mL of tetrahydrofuran, Stir at room temperature, 0.12 g of pyridine and 0.11 g of N-ethylpiperazine are added; Reaction overnight, Desolvent, Add dichloromethane, Saturated salt water wash, Drying with anhydrous sodium sulfate, Desolvent, Add petroleum ether to precipitate solids, Suction filtration Wash with petroleum ether, Dried to obtain beige solid N-[4-tert-butyl-5-(2,4-dichlorobenzyl)thiazol-2-yl]-2-(4-ethylpiperazinyl)acetamide, yield 77.9 %,

As the paragraph descriping shows that 5308-25-8 is playing an increasingly important role.

Reference£º
Patent; Hunan University; Hu Aixi; Wu Zhilin; Ding Na; Ye Jiao; (20 pag.)CN107365280; (2017); A;,
Piperazine – Wikipedia
Piperazines – an overview | ScienceDirect Topics