Nitrogen-containing heterocyclic compound and method for producing same

摘要

There are provided a nitrogen-containing heterocyclic compound such as a substituted amino-pyridine-N-oxide compound represented by formula (1), which is useful as a synthetic intermediate for an agrochemical and the like; and a method for producing the nitrogen-containing heterocyclic compound. (In formula (1), R1 and R2 each represents a hydrogen atom or an unsubstituted or substituted alkyl group; R3 represents a hydrogen atom, an unsubstituted or substituted alkylcarbonyl group or the like; R4 represents an unsubstituted or substituted alkylcarbonyl group, an unsubstituted or substituted arylcarbonyl group or the like; A represents a hydroxyl group, a thiol group or the like; m represents any one of integers of 1 to 4; k represents any one of integers of 0 to 3; and k+m≦4.).;

主权项

1. A method for producing a compound represented by formula (5) comprising reacting a compound represented by formula (4) with a halogenating agent: wherein each of R1 and R2 independently represents a hydrogen atom, or an unsubstituted or substituted alkyl group, and R1 and R2 may form a ring together, A represents a hydroxyl group, a thiol group, an amino group, a nitro group, a halogen atom or an organic group, and at least one of A in formula (4) and formula (5) represents a group represented by formula(6): in formula (6), * indicates a binding site, R5 represents a hydrogen atom, an unsubstituted or substituted alkylcarbonyl group, an unsubstituted or substituted arylcarbonyl group, an unsubstituted or substituted heteroarylcarbonyl group, an unsubstituted or substituted alkoxycarbonyl group, an unsustituted or substituted arkylsulfonyl group, or an unsubstituted or substituted arylsulfonyl group, and R6 represents an unsubstituted or substituted alkylcarbonyl group, an unsubstituted or substituted arylcarbonyl group, an unsubstituted or substituted heteroarylcarbonyl group, an unsubtituted or substituted alkoxycarbonyl group, an unsubstituted or substituted alkylsulfonyl group, or an unsubtituted or substituted arylsulfonyl group, and R5 and R6 may be bonded to form a ring, n represents any one of integers of 1 to 4, and a plurality of A may be bonded to form a ring when n is 2 or more, and X represents a halogen atom.