- Enantioselective synthesis of 8-azabicyclo[3.2.1]octanes: Via asymmetric 1,3-dipolar cycloadditions of cyclic azomethine ylides using a dual catalytic system
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The first example of asymmetric 1,3-dipolar cycloadditions between diazo imine-derived cyclic azomethine ylides and acryloylpyrazolidinone using a rhodium(ii) complex/chiral Lewis acid binary system is reported. The asymmetric cycloadditions afforded opti
- Suga, Hiroyuki,Yoshiwara, Masahiro,Yamaguchi, Takaaki,Bando, Takashi,Taguchi, Mizuki,Inaba, Ayano,Goto, Yuichi,Kikuchi, Ayaka,Itoh, Kennosuke,Toda, Yasunori
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- Iron Promoted Ring Opening and Ring Closing Cascade (ROCC) Reaction of Ortho-Carboxy-Isoxazoles Leading to Isoindolinone Derivatives
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An efficient and convenient route for the synthesis of various functionalized 3-alkylidene isoindolin-1-ones is presented. The synthesis involves the ring opening and ring closing cascade (ROCC) reaction of ortho-carboxy-isoxazole using Fe/NH4Cl. This is the first report for the synthesis of 3-alkylidene isoindolin-1-one using Fe/NH4Cl.
- Gudipati, Ramakrishna,Jayaram, Vankudoth,Raghavulu, Karri,Bhoot, Dinesh,Basavaiah, Keloth,Yennam, Satyanarayana,Behera, Manoranjan
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p. 5127 - 5134
(2021/10/19)
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- NOVEL N-[(PYRAZINYLOXY)PROPANYL]BENZAMIDES
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This invention relates to compounds of formula (I) a process for their preparation, pharmaceutical compositions containing them and their use in the treatment of conditions having an association with the orexin sub-type 1 receptor. Ar, R1, Rsu
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Page/Page column 40
(2017/11/10)
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- Nitrile Oxide Cycloaddtion Routes to 2-(Isoxazolyl)benzoates and 2-(1,2,4-Oxadiazol-3-yl)benzoates
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Cycloaddition of aromatic nitrile oxides to methyl o-vinylbenzoate produced methyl 2-(3-aryl-2-isoxazolin-5-yl)benzoates; the isoxazolines were converted to methyl 2-(3-arylisoxazol-5-yl)benzoates.Reaction of the nitrile oxide from o-methoxycarbonylbenzohydroximinoyl chloride (11) with phenylacetylene, styrenes, and aromatic nitriles resulted in methyl 2-(5-phenylisoxazol-3-yl)benzoate, methyl 2-(5-aryl-2-isoxazolin-3-yl)benzoates (15) and methyl 2-(5-aryl-1,2,4-oxadiazol-3-yl)benzoates, respectively.The isoxazolines 15 were converted to the corresponding isoxazoles 16.
- Howe, Robert K.,Schleppnik, Frances M.
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p. 721 - 726
(2007/10/02)
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- 2-[5-ARYL-2-ISOXAZOLIN-3-YL]BENZOATES AND USE AS HERBICIDES
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The invention relates to novel herbicidal 2-[5-aryl-2-isoxazolin-3-yl]benzoates and their use as agricultural chemicals.
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