Chinese Journal of Magnetic Resonance ›› 1995, Vol. 12 ›› Issue (1): 63-70,106.

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STUDIES ON THE REACTION OF 2,5-PIPERAZINEDIONE AND α,β-UNSATURATED ALDEHYDES

Wang Lixin, Shi Yaozeng, Yao Yimin, Hu Hongwen   

  1. Department of Chemistry, Nanjing University, Nanjing 210008
  • Received:1994-02-04 Revised:1994-05-23 Published:1995-02-05 Online:2018-01-17

Abstract: In the presence of ultrasonically dispersed potassium or his-quaternary ammonium salts, 2, 5-piperazinedione condenses with α,β-unsaturated aldenhydes. The stereochemistry of the pmducts. was confirmed and 1H chemical shifts of the products were assigned by sorts of spectroscopic and chemical methods.

Key words: 2,5-piperazinedione, Ultrasonic wave, Phase transfer catalyst, NOE