Synthesis of 4H-chromene, coumarin, 12H-chromeno[2,3-d]pyrimidine derivatives and some of their antimicrobial and cytotoxicity activities.
Condensation of 3- N,N-diethylaminophenol ( 1) with α-cyanocinnamonitriles ( 2a– c) and ethyl α-cyanocinnamates ( 2d– f) provided compounds 3a– f and ...
NM Sabry，HM Mohamed，ESAEH Khattab，... - 《European Journal of Medicinal Chemistry》
The Use of Umbelliferone in the Synthesis of New Heterocyclic Compounds
New coumarin derivatives, namely 7-[(5-amino-1,3,4-thiadiazol-2-yl)methoxy]-2H-chromen-2-one (4), 5-[(2-oxo-2H-chromen-7-yloxy)methyl]-1,3,4-thiadiazol-2(3...
AA Al-Amiery，AY Musa，AAH Kadhum，... - 《Molecules》
cis-1-Ethyl-4,4,6,8-tetramethyl-2-tosyl-2,3,3a,4,6,7,8,9-octahydro-1H-pyrrolo[3′,4′:3,4]pyrano[6,5-d]pyrimidine-7,9-dione
In the title compound, C22H29N3O5S, the pyrrolidine ring is cis-fused to the dihydropyran ring. The pyrrolidine and dihydropyran rings adopt twist and half...
K Chinnakali，D Sudha，M Jayagopi，... - 《Acta Crystallographica:section E, Structure Reports Online》
Molecules, Vol. 16, Pages 6833-6843: The Use of Umbelliferone in the Synthesis of New Heterocyclic Compounds
New coumarin derivatives, namely 7-[(5-amino-1,3,4-thiadiazol-2-yl)methoxy]-2H-chromen-2-one (4), 5-[(2-oxo-2H-chromen-7-yloxy)methyl]-1,3,4-thiadiazol-2(3H)-one (5), 2-[2-(2-oxo-2H-chromen-7-yloxy)acetyl]-N-phenylhydrazinecarbothioamide...
AlAmiery，A Ahmed，Y Ahmed，...
cis-1-Ethyl-4,4,6,8-tetramethyl-2-tosyl-2,3,3a,4,6,7,8,9-octahydro-1H-py rrolo[3 ',4 ':3,4]pyrano[6,5-d]pyrimidine-7,9-dione
In the title compound, C(22)H(29)N(3)O(5)S, the pyrrolidine ring is cis-fused to the dihydro-pyran ring. The pyrrolidine and dihydro-pyran rings adopt twis...
K Chinnakali，D Sudha，M Jayagobi，... - 《Acta Crystallographica》
Demethylation of 2,4-dimethoxyquinolines: the synthesis of atanine.
The synthesis of the quinoline alkaloid atanine6, by selective demethylation of the 2,4-dimethoxyquinoline11is presented. An alternative demethylation util...
K Jones，X Roset，S Rossiter，... - 《Organic & Biomolecular Chemistry》
Clean chemical synthesis of 2-amino-chromenes in water catalyzed by nanostructured diphosphate Na2CaP2O7
A versatile, alternative and environmentally benign three-component strategy to the synthesis of a series of 2-amino-chromenes has been successfully perfor...
A Solhy，A Elmakssoudi，R Tahir，... - 《Cheminform》
Synthetic Utility of Enaminonitrile Moiety in Heterocyclic Synthesis: Synthesis of Some New Thienopyrimidines
The hitherto unknown 3-amino-5-bromo-4, 6-dimethylthieno [2, 3-b] pyridine-2-carbonitrile ( 4 ) was condensed with p-anisaldehyde affording the Schiff base...
HMF Madkour，AAE Afify，AA Abdalha，... - 《Phosphorus & Sulfur & the Related Elements》
香豆素类化合物合成方法最新研究进展
本文综述了近年来香豆素类化合物合成方法的最新进展.包括微波法的应用,新型催化剂的采用,离子液体等最新方法.这些方法与以往的方法相都具有突出的优点,为香豆素类的合...
徐小波，关启明，颜继忠，... - 《化学工程与装备》
Synthesis, Reactions and Evaluation of the Antimicrobial Activity of Some 4-(p-Halophenyl)-4H-naphthopyran, Pyranopyrimidine and Pyranotriazolopyrimidine D...
A series of naphthopyran derivatives3a鈥揻were prepared. Reaction of2-amino-4-(p-chlorophenyl)-7-methoxy-4H-naphtho[2,1-b]pyran-3-carbonitrile (3b) with Ac...
A El-Wahab，HF Ashraf - 《Pharmaceuticals》
