- METHOD FOR PRODUCING CONDENSED-RING PYRIDINE COMPOUND
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PROBLEM TO BE SOLVED: To provide a novel method for producing a condensed-ring pyridine compound, useful as a precursor of a heterocyclic amide compound useful as a herbicide. SOLUTION: The present invention provides a method for producing a condensed-ring pyridine compound represented by the formula (1), characterized by cyclizing a pyridine compound represented by the formula (2), in the presence of at least one selected from the group consisting of phosphoryl chloride, phosphorus trichloride, phosphorus pentachloride, diphosphorus pentoxide, thionyl chloride and oxalyl chloride (where R and R1 independently represent a C1-3 alkyl group, n is an integer of 0, 1 or 2). SELECTED DRAWING: None COPYRIGHT: (C)2020,JPOandINPIT
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Paragraph 0054
(2019/12/28)
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- Simple and efficient oxidation of sulfides to sulfones using catalytic ruthenium tetroxide
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A procedure for the oxidation of sulfides to sulfones using ruthenium tetroxide as catalyst and periodic acid as stoichiometric oxidant in a biphasic system (CCl4, CH3CN, H2O) is reported.
- Rodriguez, Carmen Ma,Ode, Jesus M.,Palazon, Jose Ma,Martin, Victor S.
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p. 3571 - 3576
(2007/10/02)
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