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Synthesis 1991; 1991(9): 783-784
DOI: 10.1055/s-1991-26573
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Synthesis of 9-Acetyl-8,9-diaza-1-phosphabicyclo[4.3.0]nona-3,7-dienes by Regioselective Diels-Alder Reaction of 2H-1,2,3-Diazaphospholes with Isoprene

Ruyu Chen* , Baozhong Cai, Guowei Li
  • *The Institute of Elemento-Organic Chemistry, Nankai University, Tianjin 300 071, People's Republic of China
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Publication Date:
29 April 2002 (online)

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2H-1,2,3-Diazaphospholes, prepared from various hydrazones and phosphorus trichloride in the presence of triethylamine, react with isoprene to give highly regioselective Diels-Alder products in good yield.