Results 61 to 70 of about 4,025 (222)
PYRIDAZINE AND ITS RELATED COMPOUNDS, SYNTHESIS OF SOME NOVEL CONDENSED PYRIDAZINES [PDF]
A series of pyridazino[3,4-d][1,3]oxazin-5-one derivatives were designed and synthesized through a versatile method. Reaction of chloro-ester 1 with sodium azide has afforded azido-ester 2 which reacted with triphenylphosphine to produce compound 3; amino-ester 4 was formed upon treatment of compound 3 with acetic acid 80%; this amino-ester 4 was then ...
Ali Deeb +3 more
openaire +1 more source
The continuing significance of chiral agrochemicals
In the time frame 2018–2023, around 43% of the 35 chiral agrochemicals introduced to the market (herbicides, fungicides, insecticides, acaricides, and nematicides) contain one or more stereogenic centers in the molecule, and almost 69% of them have been marketed as racemic mixtures of enantiomers or stereoisomers.
Peter Jeschke
wiley +1 more source
3,6-Di(pyridin-2-yl)pyridazines are an interesting class of compds. because of their metal-coordinating ability resulting in the self-assembly into [2*2] gridlike metal complexes with copper(I) or silver(I) ions.
Schubert, U.S. +2 more
core +1 more source
Electrochemically induced density gradients are harnessed to drive gravity‐dependent convection at partially fouled electrodes. By controlling electrode orientation and surface heterogeneity, mass transport is enhanced without external stirring. This enables coupling of electrochemical reactions with enzyme catalysis on insulating domains, exemplified ...
Wathsala Prasadini Kapuralage +3 more
wiley +1 more source
Pyridazines. XI. Some Reactions of 1,2,5-Thiadiazolo( 3,4-d) pyridazines
The synthesis of several substituted 1,2,5-thiadiazolo-(3,4-d)- pyridazines is described. In addition, two new tricyclic systems were obtained and some reactions with ring opening of the fused thiadiazolo ring are ...
Stanovnik, B. +5 more
core
4-Amino(alkylamino)-5-chloro-2-substituted-3-oxo-2H-pyridazines and 5-amino(alkylamino, dialkylamino)-4-chloro-2-substituted-3-oxo-2H-pyridazines have been prepared by nucleophilic substitution reactions of 4,5-dichloro-2-substituted-3-oxo-2H-pyridazines
Václav Konečný +2 more
core +1 more source
Schematic illustration of the SH bandage placed on an infected burn wound and its role in wound healing. A superhydrophobic PDMS membrane coated with the PS verteporfin is placed over the wound area and illuminated with a red laser at 690 nm, generating airborne 1O2 above the tissue.
Fernanda Viana Cabral +8 more
wiley +1 more source
Pyridazines. LXXV. Some Quaternary and Mesoionic s-Triazolo( 4,3-b)pyridazines
Quaternization of some s-triazolo(4,3-b)pyridazines, formation of a mesoionic derivative and some transformations of these compounds are ...
Stanovnik, B. +5 more
core
A short and straightforward approach towards 6-amino and 6-aminoalkyl thiazolo[4,5-c]pyridazines
A facile and efficient synthesis of 6-amino and 6-aminoalkyl thiazolo[4,5-c]pyridazines is reported. The key step for the construction of this novel bicyclic scaffold was the reaction between 3-amino-4-bromopyridazine derivatives and alkylisothiocyanates.
Herdewijn, Piet +3 more
core +1 more source

