- Facile organocatalytic domino oxidation of diols to lactones by in situ-generated TetMe-IBX
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The domino oxidation of diols to lactones is an important transformation, and catalytic protocols that allow this conversion smoothly are scarce. Capitalizing on the established reactivity of tetramethyl-IBX (TetMe-IBX) and its in situ generation in the presence of a co-oxidant, such as oxone, we have shown that a variety of diols can be converted to the corresponding lactones in respectable yields by employing the precursor of TetMe-IBX, namely, tetramethyl-o-iodobenzoic acid (TetMe-IA), as a catalyst in 5 mol % in the presence of 2 equiv of oxone.
- Jhulki, Samik,Seth, Saona,Mondal, Manas,Moorthy, Jarugu Narasimha
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p. 2286 - 2293
(2014/03/21)
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- PRODUCTION METHOD OF HALOGEN-SUBSTITUTED PHTHALIDE
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Disclosed is a method for producing a halogen-substituted phthalide, which includes a reaction step of reacting a halogen-substituted phthalic anhydride with sodium borohydride.
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Page/Page column 5
(2012/04/10)
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- Use of phosphoric esters as crystallization inhibitors
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A new process for preventing the crystallization of certain azole derivatives in the spray equipment upon spraying mixtures containing A) certain azole derivatives which have a tendency to crystallize and B) if appropriate one or more other active compounds and additives, which process comprises adding at least one phosphoric ester of the formula STR1 in which R1 represents alkyl having 2 to 18 carbon atoms and R2 and R3 independently of one another represent alkyl having 2 to 12 carbon atoms, to the spray mixture before spraying.
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- Agent for imparting a sustained release property to a pesticide, a pesticide having a sustained release property and a process for the production thereof
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A sustained release pesticide comprises solid pesticidal particles comprising a solid, pesticidally active ingredient, substantially the whole surface of the pesticidal particles being coated with a hydrophobic substance.
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- Solid formulations
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New solid formulations of A) at least one agrochemical active compound, B) at least one additive from the groups mentioned in the description, C) at least one dispersant, D) at least one carrier and E) if appropriate, further active compounds and/or additives, a process for preparing the solid formulations and their use for treating plants. A new device for preparing new granules.
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- IMPROVED PROCEDURE FOR LITHIUM BOROHYDRIDE REDUCTION OF CYCLIC ANHYDRIDES TO LACTONES IN TETRAHYDROFURAN
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The rate of reduction of several cyclic anhydrides by lithium borohydride in tetrahydrofuran at 25 deg C has been studied.The reaction has been utilized for the rapid and selective conversion of cyclic anhydrides to lactones.
- Narasimhan, Srinivasan
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p. 131 - 135
(2007/10/02)
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