Severely sterically hindered secondary aminoether alcohols are prepared by reacting an organic carboxylic acid or alkali metal salt of an organic carboxylic acid with a sulfonyl halide, a sulfuryl halide, a mixed sulfuryl ester halide or a mixed sulfuryl amide halide to yield a sulfonic-carboxylic anhydride compound which is then reacted with a dioxane to cleave the ring of the dioxane, yielding a cleavage product which cleavage product is then aminated with an alkylamine and hydrolyzed with base to yield the severely sterically hindered secondary aminoether alcohol.
通过将有机
羧酸或有机
羧酸的碱
金属盐与磺
酰卤、亚磺
酰卤、混合亚磺酰酯卤或混合亚磺酰酰胺卤反应,制备了严重受立体位阻的二级
氨醚醇。得到
磺酸羧酸酐化合物,然后与
二噁烷反应以裂解
二噁烷的环,产生一个裂解产物,然后用烷基胺进行胺化,再用碱
水解,得到严重受立体位阻的二级
氨醚醇。