1044549-00-9Relevant academic research and scientific papers
An efficient one-pot synthesis of 1H-pyrazolo[1,2-b]phthalazine-5,10-dione derivatives
Ghahremanzadeh, Ramin,Shakibaei, Ghazaleh Imani,Bazgir, Ayoob
, p. 1129 - 1132 (2008)
An efficient, three-component, one-pot condensation reaction between phthalhydrazide, aromatic aldehydes, and malononitrile or ethyl cyanoacetate for the synthesis of 1H-pyrazolo[1,2-b]phthalazine-5,10-dione derivatives in excellent yields is reported. Ge
Efficient and convenient synthesis of 1H-pyrazolo[1,2-b]phthalazine-5,10-dione derivatives mediated by L-proline
Roy, Harendra Nath,Rana, Masud,Munsur, Abu Zafar Al,Lee, Kee-In,Sarker, Ashis K.
supporting information, p. 1370 - 1376 (2016/09/03)
An efficient, four-component, one-pot condensation reaction of phthalimide or phthalic anhydride, aromatic aldehydes, and ethyl cyanoacetate for the synthesis of 1H-pyrazolo[1,2-b]phthalazine-5,10-dione derivatives mediated by L-proline in excellent yields is reported.
A rapid and an efficient route to the one-pot, multicomponent synthesis of 1H-pyrazolo[1,2-b]phthalazine-5,10-dione ring systems
Kidwai, Mazaahir,Chauhan, Ritika
, p. 1689 - 1696 (2015/01/09)
CAN is found to be an efficient catalyst for the synthesis of 1H-pyrazolo[1,2-b]phthalazine-5,10-dione derivatives via one-pot coupling reaction of phthalhydrazide, aromatic aldehydes, and malononitrile or ethyl cyanoacetate in PEG as solvent. The major attributes of this synthetic protocol are the use of nontoxic, inexpensive, and readily available catalyst, mild conditions, easy work up, improved yields, and the PEG 400 as solvent that is environmentally benign as well as recyclable.
A highly efficient green synthesis of 1H-pyrazolo[1,2-b]phthalazine-5,10- dione derivatives and their photophysical studies
Raghuvanshi, Dushyant Singh,Singh, Krishna Nand
experimental part, p. 5702 - 5705 (2011/11/04)
A task-specific ionic liquid, [Bmim]OH, has been used for an efficient synthesis of 1H-pyrazolo[1,2-b]phthalazine-5,10-diones by one-pot cyclocondensation reaction of phthalhydrazide, aromatic aldehydes, and malononitrile or ethyl cyanoacetate under microwave irradiation. The advantages of this method include the use of green catalyst, no organic solvent, easy work-up and excellent yields. The photophysical properties for some 1H-pyrazolo[1,2-b]phthalazine-5,10-dione derivatives have been investigated for the first time.
Ultrasound-assisted one-pot, three-component synthesis of 1H-pyrazolo[1,2-b]phthalazine-5,10-diones
Nabid, Mohammad Reza,Rezaei, Seyed Jamal Tabatabaei,Ghahremanzadeh, Ramin,Bazgir, Ayoob
experimental part, p. 159 - 161 (2010/11/16)
Triethylamine was found to be an efficient catalyst for the synthesis of 1H-pyrazolo[1,2-b]phthalazine-5,10-diones by one-pot reaction of phthalhydrazide, aromatic aldehydes, and malononitrile or ethyl cyanoacetate in ethanol under ultrasonic irradiation. The advantages of this method are the use of an inexpensive and readily available catalyst, easy workup, improved yields, and the use of ethanol as a solvent that is considered to be relatively environmentally benign.
