4-акрилоилморфолин

Химические свойства

4-Acryloylmorpholine has a melting point of ?35 °C and is clear liquid at room temperature. At 25 °C, it has a density of 1.122 g/mL. It needs to be stored at 2-8°C.

Использование

4-Acryloylmorpholine is used in adhesives, UV curable resins, industrial coatings, UV printing ink, oil recovery polymer, medicinal and commodity chemicals.

Реакции

Using cobalt catalysis, diethylzinc promotes the conjugate reduction of 4-acryloylmorpholine to produce the corresponding ethylzinc enolate, which reacts with N-tosyl aldimines to afford β-aminoamides^[1].

Синтез

A solution of 0.04 mol of the corresponding amine in 20 ml of anhydrous methylene chloride was slowly added at 0-5??C to 0.02 mol of acryloyl chloride in 20 ml of anhydrous methylene chloride. The mixture was stirred for 3 h at room temperature in an inert atmosphere, and the precipitate was filtered off and washed with methylene chloride (2 ?á 10 ml). The organic layer was washed in succession with 5 ml of water and 5 ml of a saturated solution of NaHCO3 and dried over Na2SO4, the solvent was removed under reduced pressure, and the residue was purified by column chromatography on silica gel using hexane-ethyl acetate (5 : 1 to 1 : 1) as eluent. 4-Acryloylmorpholine, Yield 1.78 g (63%). IR spectrum, |í, cm-1: 2857, 1647, 1612, 1439, 1263, 1238, 1115, 1038, 953. 1H NMR spectrum, |?, ppm: 3.51-3.73 m (8H, NCH2CH2O), 5.72 d.d (1H, 3-Hcis, 3J = 10.6, 2J = 1.9 Hz), 6.29 d.d (1H, 3-Htrans, 3J = 16.7, 2J = 1.9 Hz), 6.57 d.d (1H, 2-H, J = 16.7, 10.6 Hz). 13C NMR spectrum, |?C, ppm: 41.74 and 45.66 (CH2N), 66.22 (CH2O), 126.64 (C2), 127.69 (C3), 164.92 (C1). Mass spectrum, m/z (Irel, %): 141 (36) [M]+, 140 (12), 126 (58), 112 (22), 111 (15), 110 (15), 109 (12), 98 (10), 96 (26), 86 (72), 83 (13), 70 (14), 68 (14), 57 (17), 56 (86), 55 (100), 42 (23).Fig. The synthetic method 2 of 4-Acryloylmorpholine