- The deprotonative metalation of [1,2,3]triazolo[1,5-a]quinoline. Synthesis of 8-haloquinolin-2-carboxaldehydes
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New highly functionalized triazoloquinolines were synthesized by applying polar organometallic methods. Double metalation and functionalization provided 3,9-dihalogenated triazoloquinolines. Ring opening of the triazole with loss of nitrogen has been perf
- Ballesteros-Garrido, Rafael,Leroux, Frédéric R.,Ballesteros, Rafael,Abarca, Belén,Colobert, Fran?oise
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- Metal-free C(sp3)–H oxidation of 2-methylquinolines with PIDA under microwave irradiation
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An efficient metal-free protocol has been developed for the sp3C–H bond oxidation of 2-methylquinolines in the presence of PIDA under microwave irradiation, providing 2-quinolinecarboxaldehydes with moderate to high yields and excellent selectivities. A wide range of 2-quinolinecarboxaldehydes with different functional groups have been synthesized. A tentative mechanism has been presented to explain this highly selective oxidation process.
- Jiang, Long,Huang, Yingyi,Yan, Yiyan,Xie, Yuanyuan
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supporting information
p. 4149 - 4151
(2016/08/24)
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- Copper-Catalyzed Aerobic Oxidation of Azinylmethanes for Access to Trifluoromethylazinylols
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A copper-catalyzed oxygenation of methylazaarenes was found to occur in the absence of both ligand and additive, and has been successfully employed for the synthesis of trifluoromethylazinylketols. This synthetic strategy incorporates aerobic oxidation and a trifluoromethylation in one-pot and provides a novel method for the trifluoromethylation of aliphatic C-H bond.
- Zheng, Gang,Liu, Hao,Wang, Mang
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supporting information
p. 519 - 523
(2016/06/01)
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- Chemical synthesis method of quinoline (oxaline)-2-carboxaldehyde compounds
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The invention relates to a preparation method of quinoline (oxaline)-2-carboxaldehyde compounds. The preparation method comprises the following steps of dissolving 2-methylquinoline(oxaline) shown in a formula (II) into an organic solvent, adding iron salts, and completely reacting under the condition of 100 to 180DEG C with the assistance of microwave; performing after treatment on a reaction solution to obtain the quinoline (oxaline)-2-carboxaldehyde compounds shown in a formula (I), wherein the feed molar ratio of the iron salts to the quinoline (oxaline)-2-carboxaldehyde compounds is (0.5 to 3.5):1. R in the formula (I) and the formula (II) is hydrogen at the same time; or the hydrogen is monosubstituted or polysubstituted by alkyls of C1 to C8, alkoxys of C1 to C8, nitryl or halogen; the number of substituent groups is n; X in the formula (I) and the formula (II) is carbon or nitrogen at the same time. The preparation method disclosed by the invention has the advantages of short reaction time, low reaction temperature, wide application range of reaction, good reaction selectivity, low price and no toxicity of a used catalyst, and simplicity and convenience in operation; the preparation method meets the requirement of green chemistry. (The formulas are shown in the description).
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Paragraph 0052-0054
(2017/04/14)
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- Iron-catalyzed C-H bond functionalization for the exclusive synthesis of pyrido[1,2-a]indoles or triarylmethanols
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The efficient and selective iron-catalyzed C-H activation of 2-benzhydrylpyridine derivatives was employed for the preparation of pyrido[1,2-a]indoles through an intramolecular C-H amination reaction. In the presence of molecular oxygen as the sole oxidant, the same 2-benzhydrylpyridines were also used for the synthesis of the corresponding tertiary alcohols. In these approaches, the iron catalyst was used to selectively activate the C(sp2)-H bond of 2-benzhydrylpyridine, in the case of the intramolecular ring-closing C-H amination reaction in which the pyridine nitrogen atom was a directing group as well as a nucleophile, and the C(sp3)-H bond of the same compound, in the case of the oxidation reaction to give the corresponding triaryl carbinol.
- Karthikeyan, Iyyanar,Sekar, Govindasamy
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supporting information
p. 8055 - 8063
(2015/01/09)
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- OXAZOLYL PIPERIDINE MODULATORS OF FATTY ACID AMIDE HYDROLASE
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Certain oxazolyl piperidine compounds are described, which are useful as FAAH inhibitors. Such compounds may be used in pharmaceutical compositions and methods for the treatment of disease states, disorders, and conditions mediated by fatty acid amide hydrolase (FAAH) activity. Thus, the compounds may be administered to treat, e.g., anxiety, pain, inflammation, sleep disorders, eating disorders, or movement disorders (such as multiple sclerosis).
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Page/Page column 28
(2008/06/13)
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- PIPERAZINYL AND PIPERIDINYL UREAS AS MODULATORS OF FATTY ACID AMIDE HYDROLASE
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Compounds of formula (I) : wherein, Z is -N-or>CH; R1 is -H or -C1-4alkyl; Ar1 is 2-thiazolyl, 2-pyridyl, 3-pyridyl, 4-pyridyl, 2-pyrimidinyl, 4-primidinyl, 5-pyrimidinyl, or phenyl, each unsubstituted or substituted at a carbon ring member with one or two Ra moieties; Wher each Ra moiety is independently selected from the group consisting of -C1-4alkyl, -C2-4alkenyl, -OH, -OC1-4alkyl, halo, -CF3, -OCF3, -SCF3, -SH, -S(O)0-2C1-4alkyl, -OSO2C1-4alkyl, -CO2C1-4alkyl, -CO2H, -COC1-4alkyl, -N(Rb)Rc, -SO2NRbRc, -NRbSO2Rc, -C(=O)NRbRc, -NO2, and -CN, wherein Rb and Rc are each independently -H or -C1-4alkyl; and Ar2 is defined in the claims are useful as FAAH inhibitors. Such compounds may be used in pharmaceutical compositions and methods for the treatment of disease states, disorders, and conditions mediated by fatty acid amide hydrolase (FAAH) activity. Thus, the compounds may be administered to treat, e.g., anxiety, pain, inflammation, sleep disorders, eating disorders, or movement disorders (such as multiple sclerosis).
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Page/Page column 47
(2008/06/13)
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- Preparation of lavendamycin analogues
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A Pictet-Spengler type reaction conducted under modified conditions using a catalytic amount of pyridinium p-toluenesulfonate was used to prepare several lavendamycin (1) analogues.
- Barbier, Christine,Joissains, Arnaud,Commercon, Alain,Riou, Jean-Francois,Huet, Francois
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