Method for producing hydrazone derivatives

1. A process for producing a 1,1-bis-alkylsulfonyl compound represented by the general formula (2)

(wherein R 1 represents an alkyl group),

comprising:

reacting a 1,1-bis-alkylsulfanyl compound represented by the general formula (1)

(wherein, R 1 is the same as defined above)

with a monopersulfate.

2. A process for producing an aldehyde compound represented by the general formula (3)

comprising:

reacting a 1,1-bis-alkylsulfanyl compound represented by the general formula (1)

(wherein R 1 represents an alkyl group)

with a monopersulfate to produce a 1,1-bis-alkylsulfonyl compound represented by the general formula (2)

(wherein, R 1 is the same as defined above);

and reacting the resultant 1,1-bis-alkylsulfonyl compound (2) with ammonia.

3. A process for producing a hydrazone derivative represented by the general formula (5)

(wherein R 2 and R 3 , which may be the same or different from each other represent an hydrogen atom, an alkyl group, or an aryl group), comprising:

reacting a 1,1-bis-alkylsulfanyl compound represented by the general formula (1)

(wherein R 1 represents an alkyl group)

with a monopersulfate to produce a 1,1-bis-alkylsulfonyl compound represented by the general formula (2)

(wherein R 1 is the same as defined above)

and reacting the resultant 1,1-bis-alkylsulfonyl compound (2) with ammonia to produce an aldehyde compound represented by the general formula (3)

and reacting with the resultant aldehyde compound (3) with a hydrazine compound represented by the formula (4)

(wherein R 2 and R 3 are the same as defined above).

4. A process according to any one of the preceding claims 1 through 3 , wherein any reactions thereof are carried out in a water-based solvent or alcohol solvent.