chemical type from another isomers so as to it admit of by an appropriate chemical separate or physical separation handle wherein tetrahydrapyranone with formula (1), wherein Z is that-H or allowing under the influence of enzyme react protecting group with reagent; Y is selectively substituted...
Pyranones 专利名称：Pyranones 申请号：JP50586693申请日：19920910 公开号：JPH07501932A 公开日：19950302 专利内容由知识产权出版社提供 摘要：A process for the separation of at least one isomer from a mixture of isomers of a tetrahydropyran-2-one, having at least two chiral centres, which ...
Al-Saleh B,Al-Awadi N,Al-kandari H,Abdel-Khalik M M,Elnagdi M H.Studies with2Hpyranones: Synthesis of new3-substituted-4-hydroxy-2H-pyr an-2-ones. Chem Res . 2000Studies with 2H-pyranones: Synthesis of new 3-substituted-4-hydroxy-2H-pyran-2-ones - Al-Saleh, Al-Awadi, et ...
Methyl 2‐benzoylamino‐3‐dimethylaminopropenoate in the synthesis of fused pyranones. The synthesis of derivatives of tetrahydro‐2H‐1‐benzopyran‐2‐o... Methyl 2(benzoylamino)-3-(dimethylamino)-propenoate in the synthesis of heterocyclic systems.The synthesis of substituted 3-benzoylamino-2H-py...
Cascade reactions of 1,3-dicarbonyls with Morita-Baylis-Hillman acetates of nitroalkenes using a quinine derived chiral squaramide organocatalyst led to the formation of pyranones and pyranonaphthoquinones in good to excellent yields and high diastereoand enantioselectivities. Representative examples of th...
A rapid synthesis of 3-substituted pyranones using palladium-catalyzed cross-coupling reactions under microwave irradiation is described. The desired products were consistently obtained in 5 min at 100 °C in good yields.doi:10.1016/j.tetlet.2007.01.151Omar D. Lopez...
ChemInform Abstract: Pd/Ligand‐Free Synthesis of Thienopyranones via Cu‐Catalyzed Coupling‐Cyclization in PEG 400 under Ultrasoundpyran derivativesthiophene derivativesring closure reactionscatalysis, phase‐transfer catalysisA reaction mechanism for this inexpensive and easy thienopyranone synthesis is also...
ChemInform Abstract: Convenient Synthesis of 4-Perfluoroalkyl-6-(2-naphthyl)-2-pyranones.pyranderivativesringclosurereactionsChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an ...
Dibenzo[b,d]pyran-6-ones used for providing a physiological effect to treat pain, pain associated with cancer, chemotherapy, neuropathy, Multiple Sclerosis, Parkinson's Disease, Huntington's Chorea, Alzheimer's Disease, Amyotrophic Lateral Sclerosis, and inflammation; antinociceptive agentsUS 7741365 ...
专利名称：Benzothiopyranopyridinones and their salts, their preparation and use as medicaments,and compositions containing them 发明人：Rowland, David Alun,Gillepsie, Roger John,Ager, Ian Robert,Clements-Jewery,Stephen,Garner, Colin Robert 申请号：EP83401431 申请日：19830711 公开号：EP0099303A3 公开...