Category: 61655-77-4

Synthetic Route of 61655-77-4, These common heterocyclic compound, 61655-77-4, name is 2-Chloro-6-(4-methylpiperazin-1-yl)pyrazine, its traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, such as complicated route, low yield, poor purity, etc, below Introduce a new synthetic route.

Reaction Scheme 12EXAMPLE 43 : 1 -(4-methoxybenzyl)-3 -methyl-5 -(6-(4-methylpiperazin- 1 -yl)pyrazin-2- yP- 1 H-pyrazolo [3 ,4-b”|pyridineTo a stirred solution of 8 and 63 in 1,4 dioxane and water was added CS2CO3, the solution degassed, purged with nitrogen for 15 min, Pd(PPh3)4 was added and the reaction mass was again purged with nitrogen for another 15 min. The reaction mass was heated at 100C in a sealed tube overnight. After completion of the reaction the reaction mass was partitioned between ethyl acetate and water and the organic layer was separated and again extracted with ethyl acetate. The combined organic layer was dried over sodium sulphate and the solvent completely distilled off to get the crude. The crude was passed through 100-200 mesh silica gel eluting the pure compound at 70-80% ethyl acetate in hexane as off white coloured solid compound 64 (25 mg).

The synthetic route of 61655-77-4 has been constantly updated, and we look forward to future research findings.

Adding a certain compound to certain chemical reactions, such as: 61655-77-4, name is 2-Chloro-6-(4-methylpiperazin-1-yl)pyrazine, belongs to Pyrazines compound, can increase the reaction rate and produce products with better performance than those obtained under traditional synthetic methods. Here is a downstream synthesis route of the compound 61655-77-4, HPLC of Formula: C9H13ClN4

EXAMPLE 87: 5-(6-(4-methylpiperazin-l-yl)pyrazin-2-yl)-lH-pyrrolor2,3-b1pyridineThe starting material 5-(4,4,5,5-tetramethyl-l,3,2-dioxaborolan-2-yl)-lH-pyrrolo[2,3-b]pyridine (124) (50 mg, 0.2 mmol, 1 eq) and 2-chloro-6-(4-methylpiperazin-l-yl)pyrazine (63) (44 mg, 0.2 mmol, 1 eq) in DMF (5 mL) was degassed and purged under argon atmosphere for 10 min. To this reaction mixture was charged Cs2C03 (133 mg, 0.4 mmol, 2 eq) followed by addition of Pd(PPh3)4 (0.01 mg, 0.04 mmol) and degassing and purging under argon for an additional 10 min. The reaction mixture was heated at 100C for 12 h in a sealed tube. After completion of the reaction, the reaction mixture was diluted with CHC13 and filtered through Celite. The solvents were distilled off and the crude material was submitted for flash column purification in neutral alumina using 2% MeOH/CHCl3 to obtain pale yellow solid compound 5-(6-(4- methylpiperazin-l-yl)pyrazin-2-yl)-lH-pyrrolo[2,3-b]pyridine 125 in 20 mg quantity. The compound 125 was confirmed by 1HNMR and LCMS. 1H NMR (400 MHz, CDC13) delta: 8.96 (d, J=1.5Hz 1H), 8.55 (d, J=1.70Hz, 1H), 8.30 (s, 1H), 8.08 (s,lH), 7.35 (m, J=3.04, 1H), 6.60(m, J=1.95 1H), 3.75 (m, J=5.00, 4H), 2.58 (m, J=5.12, 4H), 2.38 (s , 3H); MS m/z 294.9 (M+H)+.

In the field of chemistry, the synthetic routes of compounds are constantly being developed and updated. I will also mention this compound in other articles, 2-Chloro-6-(4-methylpiperazin-1-yl)pyrazine, other downstream synthetic routes, hurry up and to see.

Reference:
Patent; ARRIEN PHARMAEUTICALS LLC; VANKAYALAPATI, Hariprasad; APPALANENI, Rajendra, P.; REDDY, Y., Venkata Krishna; WO2012/135631; (2012); A1;,
Pyrazine – Wikipedia,
Pyrazine | C4H4N2 – PubChem

Each compound has different characteristics, and only by selecting the characteristics of the compound suitable for a specific situation can the compound be applied on a large scale. 61655-77-4, name is 2-Chloro-6-(4-methylpiperazin-1-yl)pyrazine, This compound has unique chemical properties. The synthetic route is as follows., Application In Synthesis of 2-Chloro-6-(4-methylpiperazin-1-yl)pyrazine

General procedure: A microwave tube filled with compound 2 (0.35 mmol), alkoxy heteroaromatic chloride or amine heteroaromatic chloride (0.38 mmol), bis(triphenylphosphine)palladium(II) dichloride (0.010 mmol), 2 M potassium carbonate (1.7 mmol) in dioxane : ethanol (2 : 3) was heated in the microwave reactor at power 100 W and 120 C for 10 min. After solvent was removed in vacuo, the residue was treated with ethyl acetate and washed with water. The obtained organic layer was dried over anhydrous sodium sulfate, and concentrated in vacuo. The residue was purified by flash column chromatography over silica gel.

Chemical properties determine the actual use. Each compound has specific chemical properties and uses. We look forward to more synthetic routes in the future to expand reaction routes of 61655-77-4.

Reference:
Article; Lee, Jinho; Park, Jongseong; Hong, Victor Sukbong; Chemical and Pharmaceutical Bulletin; vol. 62; 9; (2014); p. 906 – 914;,
Pyrazine – Wikipedia,
Pyrazine | C4H4N2 – PubChem