Results 61 to 70 of about 2,055 (188)

Entwicklung von metallfreien photokatalytischen Dominoreaktionen [PDF]

open access: yes, 2022
Since the beginning of the 21st century the fields of photochemistry and photocatalysis experienced an unprecedented growth. The literature survey over the past two decades shows an exponential increase of published articles regarding the employment of ...
Guryev, Anton
core   +1 more source

Iptycene-Derived Pyridazines and Phthalazines [PDF]

open access: yes, 2020
The synthesis of new heterocyclic oligo(phenylene) analogues based on soluble, nonaggregating 1,2-diazines is reported. Improved palladium-catalyzed reductive coupling methods were developed to allow for the preparation of large quantities of iptycene ...
Jean Bouffard   +3 more
core  

Bidentate Lewis Acid Catalyzed Domino Diels-Alder Reaction of Phthalazine for the Synthesis of Bridged Oligocyclic Tetrahydronaphthalenes [PDF]

open access: yes, 2016
A domino process consisting of an inverse and a normal electron-demand Diels-Alder reaction is presented for the formation of bridged tri- and tetracyclic 1,2,3,4-tetrahydronaphthalenes catalyzed by a bidentate Lewis acid.
Bodoky, Ina   +5 more
core   +3 more sources

Spectroscopic characterization and quantum chemical investigation of molecular structure and vibrational spectra of phthalazine-1(2H)-one [PDF]

open access: yes, 2018
In this study, vibrational and electronic transition analysis of phthalazine-1(2H)-one have been presented using experimental techniques FT-IR, FT-Raman and density functional theory (DFT) calculation.
Ayyamperumal, Nataraj   +4 more
core   +1 more source

Accessing Arene-Fused Eight-Membered Carbo- and Heterocycles via Bidentate Lewis Acid Catalysis [PDF]

open access: yes
Eight-membered carbo- and heterocycles constitute unique structural elements not only found in a plethora of biologically active natural products and medicinally relevant synthetic compounds, but also in various functional molecules and materials ...
Große, Michel
core   +2 more sources

Solid silica-based sulfonic acid: A remarkably efficient heterogeneous reusable catalyst for the one-pot synthesis of 2H-indazolo[2,1-b]phthalazine-triones [PDF]

open access: yes, 2012
A novel, efficient and one-pot method for preparation of 2H-indazolo [2,1-b] phthalazine-trione derivatives is reported using solid silica-based sulfonic acid as an effective heterogeneous catalyst under thermal and solvent-free conditions.
Faraji, Ali Reza   +3 more
core   +1 more source

Cerium(IV) ammonium nitrate for the tandem nitration and oxidative rearrangement of 2-acetyl-1-naphthol benzoylhydrazones into 1,2-diacylnaphthalenes; synthesis of benzo[f]phthalazines

open access: yesARKIVOC, 2017
Alexandra Tzinavou   +5 more
doaj   +1 more source

Phthalazines. XII.

open access: yesJournal of the Mass Spectrometry Society of Japan, 1977
MITSUO UCHIDA   +3 more
openaire   +2 more sources

Hypervalent iodine mediated synthesis of 3-substituted-s- triazolo[3,4-a]phthalazines [PDF]

open access: yes, 1998
583 ...
Batra, Hitesh   +3 more
core  

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