| 摘要 |
Amino-acetal (C2H5O)2.CH.CH2.NH2 is prepared by reacting vinyl ethyl ether with nitrosyl chloride, treating the addition product thereby obtained with ammoniacal ethanol to yield nitroso-acetal and thereafter reducing the nitroso group to an amino group. The addition reaction is preferably conducted at low temperature, optionally in presence of solvents and/or catalysts. In examples: (1) nitrosyl chloride is added to cooled, ethereal vinyl ethyl ether and the product treated with ethanolic ammonia to yield nitroso acetal, which is hydrogenated using Raney nickel to produce aminoacetal; (2) nitroso acetal prepared as in (1) is reduced with acetic acid and an ethanolic suspension of zinc to yield amino-acetal.
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