Microwave Assisted Synthesis of some New Chromene Derivatives
نویسندگان
چکیده
منابع مشابه
Microwave Assisted Synthesis of Some Quinoxaline Derivatives
The high commercial demand for quinoxalines needs a rapid, greener and safer synthetic method among the chemists. A series of quinoxaline derivatives has been synthesized by condensation of diamines and dicarboniles in microwave heating conditions and in solvent free media. This environmentally benign synthetic approach gives us excellent yields (80-90%) in shorter reaction time (3.5 minutes.)....
متن کاملA Facile Microwave-Assisted Synthesis of Some Fused Pyrimidine Derivatives
The highly accelerated synthesis of thienopyrimidinones, theinopyrimidines, thioxotheinopyrimidinones and a thienotriazolopyrimidinone derivatives under microwave irradiation is reported. Compared to conventional conditions, microwaves method offered several advantage likes short time, good yields, simple procedure, mild conditions and easy workup. The structure of synthesized compounds have be...
متن کاملMicrowave-assisted synthesis of novel 2H-chromene derivatives bearing phenylthiazolidinones and their biological activity assessment.
6-Hydroxy-2-oxo-2H-chromene-4-carbaldehyde (2), 6-chloro-2-oxo-2H-chromene-4-carbaldehyde (3) and 6-hydrazinyl-4-methyl-2H-chromen-2-one (5) were prepared as single-pharmacophore motif key intermediates. Compounds 2, 3 and 5 were incorporated in a series of multicomponent reactions (MCRs), under microwave assistance as well as conventional chemical synthesis processes, to afford a series of thr...
متن کاملMicrowave-assisted synthesis of new selenazole derivatives with antiproliferative activity.
New aryl-hydrazinyl-1,3-selenazole and aroyl-hydrazonyl-1,3-selenazoles were synthesized via Hantzsch type condensation reactions of selenosemicarbazides with α-halogenocarbonyl derivatives, under classical versus microwave heating conditions. Excellent yields and shorter reaction times were obtained under irradiation conditions. The structures of the synthesized compounds were assigned based o...
متن کاملMicrowave assisted synthesis of some new heterocyclic spiro-derivatives with potential antimicrobial and antioxidant activity.
Homophthalic anhydride reacts with different aromatic amines to produce N-substituted homophthalimides. Bromination of the latter produces 4,4-dibromo-homophthalimide derivatives that can be used as precursors for spiro-derivatives. The dibromo derivatives react with different binucleophilic reagents to produce several spiro-isoquinoline derivatives. Reaction of the dibromo derivatives with mal...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Rafidain Journal of Science
سال: 2010
ISSN: 2664-2786
DOI: 10.33899/rjs.2010.38319