Brief introduction of 21655-48-1

21655-48-1 cis-2,6-Dimethylpiperazine 6950261, apiperazines compound, is more and more widely used in various fields.

21655-48-1, cis-2,6-Dimethylpiperazine is a piperazines compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

21655-48-1, To a stirring suspension of 2?fluoro?5?nitrobenzaldehyde (2.69 g, 15.9 mmol) and potassium carbonate (8.80 g, 63.7 mmol) in anhydrous DMF (10 mL) was added (25,6R)?2,6?dimethylpiperazine (2 g, 17.51 mmol) and the mixture washeated at 90 °C for 16 h. After cooling the mixture was partitioned between brine/water (100 mL) and ethyl acetate (25 mL) . The aqueous layer was separated and extracted with ethyl acetate (3 x 25 mL) . The combinedethyl acetate fractions were washed with brine/water (1:1, 4 x 25 mL), dried (anhydrous sodium sulfate), filtered and reduced in vacuo. The resulting residue was chromatographed (gradient 20?100percent ethyl acetate in cyclohexane) to afford the title compound (2.77 g, 66.1 percent) . ?H NMR (400 MHz, CDC13) : 3 10.07 (s, 1H), 8.62 (d,1H), 8.28 (dd, 1H), 7.06 (d, 1H), 3.35 (d, 2H), 3.14?3.17 (m, 2H) , 2.72 (dd, 2H) , 1.13 (d, 6H) . LCMS (Method C) := 0.43 mi m/z = 264 [M+H].

21655-48-1 cis-2,6-Dimethylpiperazine 6950261, apiperazines compound, is more and more widely used in various fields.

Reference:
Patent; ALMAC DISCOVERY LIMITED; HARRISON, Timothy; TREVITT, Graham; HEWITT, Peter Robin; O’DOWD, Colin Roderick; BURKAMP, Frank; WILKINSON, Andrew John; SHEPHERD, Steven D.; MIEL, Hugues; WO2015/92431; (2015); A1;,
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