从(1-重氮-2-氧代烷基)获得5-亚炔基-5,7a-二氢-3 H- [1,2,4]二氮杂磷[4,3- c ] [1,2,3]二氮杂磷10a-c。)硅烷8和2-乙酰基-2 H -1,2,3-二氮唑9a-c。通过中间2-膦基-1,3-二自由基或异构体双(亚甲基)膦的分子内[3 + 2]环加成反应,从10种生成的多环异磷吲哚(苯并[ c ]磷脂)衍生物13中热诱导消除氮原子到苯环上
Synthesis of 9-Acetyl-8,9-diaza-1-phosphabicyclo[4.3.0]nona-3,7-dienes by Regioselective Diels-Alder Reaction of 2<i>H</i>-1,2,3-Diazaphospholes with Isoprene
作者:Ruyu Chen、Baozhong Cai、Guowei Li
DOI:10.1055/s-1991-26573
日期:——
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.