
doi: 10.1246/bcsj.40.2398
Abstract The sodium methoxide-catalyzed cyclization of methyl α-tosylamino-γ-chlorobutyrate gave methyl 1-tosylazetidine-2-carboxylate, which was then converted to the corresponding carboxylic acid and carbinol. 1-Acetyl-2,2,4,4-tetramethylazetidine-3-carboxylic acid was prepared by the photolysis of 1-acetyl-4-diazo-2,2,5,5-tetramethylpyrrolidin-3-one. The formation of 1-acetyl-2,2,4,4-tetramethyl-3-azetidinone was confirmed.
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