Ultrasound-assisted synthesis of pyrazolo[1,2-b]phthalazines and dihydrospiro[indoline-3,1'-pyrazolo[1,2-b]phthalazines] using TBAF as an efficient phase-transfer catalyst View Full Text


Ontology type: schema:ScholarlyArticle     


Article Info

DATE

2016-07

AUTHORS

H. Kefayati, A. Delafrooz, S. Homayoon

ABSTRACT

Tetrabutylammonim fluoride has been used as an efficient catalyst for synthesis of pyrazolo[1,2-b]-phthalazine-5,10-diones and dihydrospiro[indoline-3,1'-pyrazolo[1,2-b]phthalazines] by one-pot three-component reaction of phthalhydrazide, aromatic aldehydes or isatin derivatives, with malononitrile in water under ultrasond irradiation. This rapid method gave the products in high yield.

PAGES

1735-1740

Identifiers

URI

http://scigraph.springernature.com/pub.10.1134/s107036321607032x

DOI

http://dx.doi.org/10.1134/s107036321607032x

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1045482349


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