| 摘要 |
PURPOSE:To obtain N-(meth)acryloylmorpholine at a relatively low temperature extremely simply by reaction of one process not requiring introduction of protecting group or deprotecting reaction to suppress Michael addition. CONSTITUTION:A (meth)acrylic acid enol ester of formula I (R1 and R2 are H or methyl) is reacted with morpholine in the molar ratio of preferably 1: 1 to give a Michael addition product (3-morpholino-propionic ester) of formula II, then the amine is rearranged from the compound to give an alpha,beta-unsaturated amide of formula III. The prepared compound of formula III has excellent properties of low viscosity, low primary skin irritation ratio and is expected to be widely useful a monomer for diluting an ultraviolet-electron radiation curing coating compound. |
