What are oxazine dyes?
Oxazines are an important group of organic dyes that are generally π-conjugated systems, with interesting photophysical and lasing properties [10–12]. From: Metal and Nonmetal Assisted Synthesis of Six-Membered Heterocycles, 2020.
Are Oxazines aromatic?
Oxazines are heterocyclic compounds containing one oxygen and one nitrogen atom in a doubly unsaturated six-membered ring. A commercially available dihydro-1,3-oxazine is a reagent in the Meyers synthesis of aldehydes. Fluorescent dyes such as Nile red and Nile blue are based on the aromatic benzophenoxazine.
What is a triazole ring?
A triazole refers to any of the heterocyclic compounds with molecular formula C2H3N3, having a five-membered ring of two carbon atoms and three nitrogen atoms. Each of these has two tautomers that differ by which nitrogen has a hydrogen bonded to it.
How do you make coumarin?
Coumarin is prepared by treating the sodium salt of ortho-hydroxybenzqaldehyde with acetic anhydride. It involves other methods which have been developed by Pechmann Claisen, Knoevenagal, Reformatsky reaction and Wittig for the synthesis of pyrone-ring moieties in coumarins.
What is Thiazine used for?
Derivatives of thiazine, often referred to as thiazines, are used for dyes, tranquilizers and insecticides.
Is Pyrazine a functional group?
Pyrazine is a heterocyclic aromatic organic compound with the chemical formula C4H4N2. It is a symmetrical molecule with point group D2h….CHEBI:30953 – pyrazine.
| ChEBI Name | pyrazine |
|---|---|
| Definition | A diazine that is benzene in which the carbon atoms at positions 1 and 4 have been replaced by nitrogen atoms. |
Is fluconazole a triazole?
Fluconazole is a new triazole antifungal agent with unique pharmacokinetic properties. It can be administered orally or parenterally and achieves rapid distribution by either route, and its absorption is not affected by the presence of food.
What is triazole used for?
This medication is a combination of two antibiotics: sulfamethoxazole and trimethoprim. It is used to treat a wide variety of bacterial infections (such as middle ear, urine, respiratory, and intestinal infections). It is also used to prevent and treat a certain type of pneumonia (pneumocystis-type).
What is coumarin used for?
Coumarins are commonly used in the treatment of prostate cancer, renal cell carcinoma and leukemia, and they also have the ability to counteract the side effects caused by radiotherapy. Both natural and synthetic coumarin derivatives draw attention due to their photochemotherapy and therapeutic applications in cancer.
Which is used synthesis of coumarin?
The Pechmann method has been used for the synthesis of coumarin derivatives in the presence of FeCl3·6H2O [101]. The feasibility of iron salt catalysts were observed in condensation reaction of resorcinol and methyl acetoacetate.
What is a thiazine dye?
any of a group of basic dyes whose molecules contain the thiazine heterocycle. Among the thiazine dyes, methylene blue is of the greatest industrial significance. Methylene blue is synthesized in three stages. The blue, green, and black sulfur dyes are sometimes regarded as thiazine dyes. …
What is the thiazolidine ring?
Thiazolidine is a heterocyclic organic compound with the formula (CH2)3(NH)S. It is a 5-membered saturated ring with a thioether group and an amine group in the 1 and 3 positions. It is a sulfur analog of oxazolidine. Another drug that contains a thiazolidine ring is the antibiotic penicillin.