Efficient One-Pot Synthesis of Spiro[indoline-3,1′-pyrazolo[1,2-<i>b</i>] phthalazine] Derivatives<i>via</i>Three-Component Reaction
作者:Hui Chen、Da-Qing Shi
DOI:10.1002/jhet.993
日期:2013.1
An efficientone‐potsynthesis of spiro[indoline‐3,1′‐pyrazolo[1,2‐b]phthalazine] derivatives via three‐componentreaction of phthalhydrazide, isatin, and malononitrile (cyanoacetic ester) is described. This new protocol has the advantages of high efficiency, mild reaction conditions, one‐pot procedure, and convenient operation.
描述了一种通过邻苯二甲酰肼,靛红和丙二腈(氰基乙酸酯)的三组分反应有效地一锅合成螺[吲哚啉-3,1'-吡唑并[1,2- b ]邻苯二嗪]衍生物的方法。该新方案的优点是效率高,反应条件温和,一锅法操作,操作方便。
Ultrasound-Promoted One-Pot, Three-Component Synthesis of Spiro[indoline-3,1'-pyrazolo[1,2-b]phthalazine] Derivatives
作者:Juxian Wang、Xiaoguang Bai、Changliang Xu、Yucheng Wang、Wei Lin、Yi Zou、Daqing Shi
DOI:10.3390/molecules17078674
日期:——
A series of 3'-aminospiro[indoline-3,1'-pyrazolo[1,2-b]phthalazine]-2,5',10'-trione derivatives have been synthesized by a one-pot three-component reaction of isatin, malononitrile or ethyl cyanoacetate and phthalhydrazide catalyzed by piperidine under ultrasound irradiation. For comparison the reactions were carried out under both conventional and ultrasonic conditions. In general, improvement in