in acetonitrile containing tetraethylammonium perchlorate exhibit six cathodic waves; the first wave is attributable to electrolytic cleavage of one C Cl bond, whereas the remaining waves arise from the reductions of different electrolysis products, as well as from hydrolytically formed phthalic anhydride....
A new, mild and efficient process is developed for the synthesis of alkyl 1,3-dihydro-3-oxo-2,1-benzisoxazole-4-carboxylates through the reduction of 3-nitrophthalic anhydride by SnCl2 in different alcohols. The synthesis of benzisoxazoles bearing a sulfonamide functionality is also reported. ...
Preparation of CPI film As a precursor for CPI, PAA solution was prepared by dissolving 2.0365 g of 4,4′-(hexafluoroisopropylidene)diphthalic anhydride (6FDA) and 1.0180 g of 3,3′-diaminodiphenyl sulfone (APS) in 4 g of N,N-dimethylformamide solution. For complete dissolution, the mixture...
A facile one-step synthesis of the hybrid of hierarchical nitrogen-doped porous carbon and Fe3C nanoparticles encapsulated a nitrogen-doped carbon nanotube through simply annealing the mixture of FeCl3, o-phthalic anhydride, and melamine... P Zhao,W Xu,X Hua,... - 《Journal of Physical Chemistr...
in acetonitrile containing tetraethylammonium perchlorate exhibit six cathodic waves; the first wave is attributable to electrolytic cleavage of one C Cl bond, whereas the remaining waves arise from the reductions of different electrolysis products, as well as from hydrolytically formed phthalic anhydride....
Lithium aluminum hydride has been used successfully in the partial reduction of phthalic anhydride to phthalide, in the selective reduction of the carbonyl group of dehydroisoandrosterone-3-acetate, and in the reduction of oestrone acetate to α-oestradiol without simultaneous production of the β-...
Conclusions 1.The GR spectra of copolymers of ferrocene with methyl ethyl ketone and phthalic anhydride with various degrees of oxidation were obtained.2.In the case of copolymers of ferrocene with methyl ethyl ketone, no more than 60% of the ferrocenylene groups present in the oxidized copolymer...
The most important derivative is phthalic anhydride, of which almost 25% is produced by the oxidation of naphthalene. For example, the manufacture of plasticizers in the United States consumes approximately 50% of phthalic anhydride [3].R.A. Zainullin...
PRESSURE REDUCTION IN APPARATUS UPON MANUFACTURING PHTHALIC ACID ANHYDRIDE AND MALEIC ACID ANHYDRIDE57 ways to produce negative pressure in apparatus for the manufacture of phthals u00e4ureanhydrid and / or maleic anhydride by catalytic air oxidation of naphthalene or o - xylene.with production of ...
Chicha, H., Abbassi, N., Rakib, E., Khouili, M., El Ammari, L., Spinelli, D., 2013. Reduction of 3-nitrophthalic anhydride by SnCl2 in different alcohols: a simple synthesis of alkyl 1,3-dihydro- 3-oxo-2,1-benzisoxazole-4-carboxylates. Tetrahedron Lett. 54, 1569-1571....