Radical generating catalyst, method for producing radical, method for producing oxidation reaction product, drug, and drug for use in agriculture and livestock industry

A radical generating catalyst comprising:

• at least one selected from the group consisting of amino acids, proteins, peptides, phospholipids, and salts thereof, and further comprising:
• ammonium, wherein
• the ammonium salt is an ammonium salt represented by the following chemical formula (XIV):
• where in the chemical formula (XIV),
• R100 may form a ring structure, which may be saturated or unsaturated, aromatic or non-aromatic, and may or may not have one or more substituents, and
• R11 is a hydrogen atom or an aromatic ring, or an alkyl group, the alkyl group may comprise an ether bond, a carbonyl group, an ester bond, or an amide bond, or an aromatic ring
• and X− is an anion (excluding peroxodisulfate ion).

A radical generating catalyst comprising:

• an ammonium salt represented by the following chemical formula (XI) (excluding peroxodisulfate) and having a Lewis acidity of 0.4 eV or more, wherein
• the radical generating catalyst catalyzes radical generation from a radical source in a liquid that is not acidic, and
• the radical source is at least one selected from the group consisting of halogenous acids, halite ions, and halites:
• where in the chemical formula (XI),
• R11, R21, R31, and R41 are each a hydrogen atom or an aromatic ring, or an alkyl group, the alkyl group may comprise an ether bond, a carbonyl group, an ester bond, or an amide bond, or an aromatic ring, and R11, R21, R31, and R41 may be identical to or different from each other, or
• two or more of R11, R21, R31, and R41 may be integrated to form a ring structure with N+ to which they are bonded, and the ring structure may be saturated or unsaturated, aromatic or non-aromatic, and may or may not have one or more substituents, and
• X− is an anion (excluding peroxodisulfate ion).

A method for producing a radical, the method comprising:

• a mixing step of mixing a Lewis acid having a Lewis acidity of 0.4 eV or more (excluding peroxodisulfate) with a radical source;
• and
• a reaction step of reacting the Lewis acid with the radical source in a liquid that is not acidic, wherein
• the radical source is at least one selected from the group consisting of halogenous acids, halite ions, and halites.

A method for producing a radical, the method comprising:

• a mixing step of mixing a Lewis acid having a Lewis acidity of 0.4 eV or more (excluding peroxodisulfate) with a radical source;
• and
• a reaction step of reacting the Lewis acid with the radical source in a liquid, wherein
• the Lewis acid having a Lewis acidity of 0.4 eV or more comprises an inorganic substance, and
• the radical source is at least one selected from the group consisting of halogenous acids, halite ions, and halites.