1634-64-6Relevant academic research and scientific papers
Vanadium-Catalyzed Oxidative Intramolecular Coupling of Tethered Phenols: Formation of Phenol-Dienone Products
Gilmartin, Philip H.,Kozlowski, Marisa C.
supporting information, p. 2914 - 2919 (2020/04/10)
A mild and efficient method for the vanadium-catalyzed intramolecular coupling of tethered free phenols is described. The corresponding phenol-dienone products are prepared directly in good yields with low catalyst loadings. Electronically diverse tethered phenol precursors are well tolerated, and the catalytic method was effectively applied as the key step in syntheses of three natural products and a synthetically useful morphinan alkaloid precursor.
Lewis-Acid-Catalysed Reaction of 3-Hydroxy-2-oxindoles with Terminal Alkynes: Synthetic Approaches to the Pyrroloindoline Alkaloids
Kinthada, Lakshmana K.,Babu, K. Naresh,Padhi, Dikshaa,Bisai, Alakesh
, p. 3078 - 3091 (2017/06/20)
Lewis-acid-catalysed reaction of 3-hydroxy-2-oxindoles with a variety of terminal alkynes has been developed. The key step involves alkylation of 3-aryl (or) 3-alkyl, 3-hydroxyoxindoles with terminal alkyne as π-electron-rich system to give a variety of 2-oxindoles with an all-carbon quaternary centre. On further extension of this method, a variety of spiro-2-oxindoles have been synthesized in high yields. The aforementioned methodology has been used in addressing the cyclotryptamine alkaloids linked with aryl group at the pseudobenzylic position.
Triazine derivatives, a process for preparing the derivatives, and herbicides containing the derivatives as the effective component
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, (2008/06/13)
A triazine derivative represented by the general formula: STR1 wherein R1 and R2 are each an alkyl group having 1 to 4 carbon atoms, and X1 and X2 are each a halogen atom, an alkyl group having 1 to 4 carbon atoms, an alkoxyl group having 1 to 4 carbon atoms, or an alkylthio group having 1 to 4 carbon atoms. This invention also provides a process for efficiently preparing said triazine derivative and a herbicide containing said triazine derivative as effective component.
