57353-93-2Relevant articles and documents
Preparation method and epoxidation application of phthalazinone bisphenol monomer
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Paragraph 0025-0027, (2019/11/21)
The invention belongs to the technical field of new materials, and discloses a preparation method and epoxidation application of a phthalazinone bisphenol monomer. The method comprises the following steps: (1) preparing MHPZ by a Friedel-Crafts reaction; (2) synthesizing an MMPZ monomer by using the MHPZ, 4-bromoanisole (BPM), 1,10-phenanthroline (PNTM) and CuI by a "one-pot two-step method"; and(3) reducing the MMPZ by Lewis acid to obtain the target monomer HHPZ. The synthesis method has the advantages of mild reaction condition, simple and convenient product post-treatment and high productpurity. Through detection by liquid chromatography-mass spectrometry, the purity of the target monomer is 99% and the yield is 90% or above. Based on the above synthetic exploration, two ends of thesynthesized active bisphenol monomer were further functionalized. Active hydroxyl groups at two ends of HHPZ are epoxidized with epichlorohydrin, and then novel intrinsic flame retardant epoxy resin with a low melting point and high temperature resistance is achieved, wherein the flame retardant grade can reach the V-0 grade.
Synthesis of 1,2-dihydro-1-oxophthalazin-4-yl trifluoromethanesulfonate and its application in the synthesis of 4-(aryl/heteroaryl/alkynyl)phthalazin-1(2H)-one
Dhage, Ganesh Raosaheb,Deshmukh, Santosh Rangnath,Thopate, Shankar Ramchandra
, p. 33377 - 33384 (2015/04/27)
The regioselective synthesis of 1,2-dihydro-1-oxophthalazin-4-yl trifluoromethanesulfonate (3a) has been reported. The reaction of Tf2O (2a) with phthalhydrazide (1a) provides a rapid access to 3a with an excellent yield and a high level of reg
New antithrombotic 1-Phthalazinamines with Serotonin Antagonistic Properties
Johnsen, Matthias,Rehse, Klaus,Pertz, Heinz,Stasch, Johannes Peter,Bischoff, Erwin
, p. 591 - 597 (2007/10/03)
We report nineteen 4-aryl- and 4-arylalkyl-1-phthalazinamines (5-8) which we prepared and tested for antithrombotic properties. All compounds were assayed for their antiplatelet activity in the "Born test" with collagen as inducer of the aggregation. N-[4-(1H-1,2,4-triazol-1-yl)butyl]-4-phenyl-1-phthalazin-amine (7c) was the most potent compound, having an IC50 of 8 μM. When 5-HT (Serotonin) was used to start aggregation the N-(furan-2-yl-methyl)-4-phenyl-1-pthtalazinamine (8a) had an IC50 of 2 μM. In vivo potencies were highly significant. N-[5-(1H-1,2,4-triazol-1-yl)pentyl]-4-phenyl-1-phthalazinamine (7d) inhibited thrombus formation by 12% (P 2A receptor, which is most likely the mechanism of the inhibition of aggregation by this compound.