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Communication | Special issue | Vol 7, No. 2, 1977, pp.919-925
Published online, 1st January, 1970
DOI: 10.3987/S-1977-02-0919
A Simple Synthesis of 4-Oxazolidinones, 1,3-Oxazin-4-ones and 1,3-Oxazepin-4-ones from Amide Alcohols

Tetsji Kametani,* Kazuo Kigasawa, Mineharu Hiiragi, Nagatoshi Wagatsuma, Toshitaka Kohagizawa, and Hitoshi Inoue

*Pharmaceutical Institute, Tohoku University, Aobayama, Sendai 980-8578, Japan


Acid-catalysed cyclisation of the secondary amides (3) having a hydroxyl group at α,β or γ-position with formaldehyde gave oxazolidine, 1,3-oxazine or 1,3-oxazepine derivatives, respectively.