1-Aminonocyclobutanecarboxylic acid is an important synthetic amino acid. According to literature, two processes, including the method of 5-cyclobutane-spiro-hydantoin and the method of cyclobutanone, were applied to the synthesis of 1-aminonocyclobutanecarboxylic acid. It was found that the two methods are not economical in industry for their long route, high cost and difficult-purified intermediates. A novel synthesis route is developed according to the synthesis method of aminoacetic acid in the disserta...