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.
Guo, Xiangyun; Feng, Li; Tao, Fenggang, Journal of Chemical Research, 2006, # 2, p. 130 - 132
作者:Guo, Xiangyun、Feng, Li、Tao, Fenggang
DOI:——
日期:——
Kerth, Jochen; Maas, Gerhard, European Journal of Organic Chemistry, 1999, # 10, p. 2633 - 2643
作者:Kerth, Jochen、Maas, Gerhard
DOI:——
日期:——
1,3-Dipolar cycloadditions of 9-diazofluorenes and diphenyldiazomethane to 2-acyl-2<i>H</i>-1,2,3-diazaphospholes
作者:Xiangyun Guo、Li Feng、Quanrui Wang、Zhiming Li、Fenggang Tao
DOI:10.1002/jhet.5570430215
日期:2006.3
3-dipole, yielding the respective bicyclic phosphiranes 5 or trimers 7 depending on the reaction conditions employed. The reaction is believed to proceed via the formation of the [3+2]-cycloaddition adducts followed by elimination of nitrogenfrom the cyclicazo moiety. In the case of 3c, the phosphatetraazabicyclooctadiene compound 6 has been isolated with no loss of nitrogen. Likewise, the dipolar cycloaddition
一系列2-酰基-2 H -1,2,3-二氮杂磷3进行了现成的1,3-偶极环加成反应,并以9-重氮芴作为1,3-偶极,产生了相应的双环膦5或三聚体7,具体取决于使用的反应条件。据信该反应通过形成[3 + 2]-环加成加合物,然后从环状偶氮部分消除氮来进行。在3c的情况下,已分离出了磷酸三氮杂双环辛二烯化合物6,而没有氮的损失。同样,二苯基重氮甲烷与> C的偶极环加成反应P-部分作为1,3-双极性亲和剂,以32-68%的产率提供了phosphadiazabicyclocyclohexenes 8。
Polycyclic Isophosphindole Derivatives by Intramolecular Trapping of 2‐Phospha‐1,3‐diyls or Isomeric Bis(methylene)phosphoranes
2-acetyl-2H-1,2,3-diazaphospholes 9a−c. Thermally induced elimination of molecular nitrogen from 10 generated polycyclic isophosphindole (benzo[c]phosphole) derivatives 13 by means of intramolecular [3+2] cycloaddition of an intermediate 2-phospha-1,3-diradical or an isomeric bis(methylene)phosphorane onto a benzene ring.
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