Provided is a method for producing a polythiol compound, including obtaining one or more polythiol compounds selected from the group consisting of a polythiol compound represented by Formula (3), a polythiol compound represented by Formula (4), and a polythiol compound represented by Formula (5) through steps including: reacting 2-mercaptoethanol with an epihalohydrin in an amount of 1.00 equivalent or more and 1.25 equivalent or less with respect to the 2-mercaptoethanol to obtain a polyol compound represented by Formula (1); and reacting the polyol compound represented by Formula (1) with an alkali metal sulfide in an amount of 1.04 equivalent or more and 1.25 equivalent or less with respect to the 2-mercaptoethanol to obtain a polyol compound represented by Formula (2).

##STR00001##

[in Formula (1), X represents a halogen atom]

##STR00002##

Process for the preparation of a polysulfide comprising the step of reacting in the absence of a dihaloalkane a bis(2-dihaloalkyl)formal in the presence of (i) a pre-polymer (I) according to structure (I)

X(R2O)nCH2O(R1O)mCH2(OR2)pX(I),

wherein R1 and R2 can be the same or different and are selected from alkane chains containing 2-10 carbon atoms, X is a halogen atom, and n, m, and p are integers that can be the same or different and have a value in the range 1-6, with either (i) sodium polysulfide or (ii) a combination of sodium hydrosulfide and sulfur.

Process for the preparation of a polysulfide comprising the step of reacting in the absence of a dihaloalkane a bis(2-dihaloalkyl)formal in the presence of (i) a pre-polymer (I) according to structure (I)

X(R2O)nCH2O(R1O)mCH2(OR2)pX(I),

wherein R1 and R2 can be the same or different and are selected from alkane chains containing 2-10 carbon atoms, X is a halogen atom, and n, m, and p are integers that can be the same or different and have a value in the range 1-6, with either (i) sodium polysulfide or (ii) a combination of sodium hydrosulfide and sulfur.

The present invention provides a method of forming paracyclyophane containing disulfide functional group. The paracyclophane is prepared by adding 3,3-dithiodipropionic acid (DPDPA) and N-ethyl-N-(3-(dimethylamino)propyl)carbodiimide (EDC) into 4-aminomethyl [2,2] paracyclophane. The present invention further provides a chemical film and a method of forming the same. The chemical film contains poly-p-xylylene with disulfide functional group and is formed on a substrate by a chemical vapor deposition process.

The present invention provides a method of forming paracyclyophane containing disulfide functional group. The paracyclophane is prepared by adding 3,3-dithiodipropionic acid (DPDPA) and N-ethyl-N-(3-(dimethylamino)propyl)carbodiimide (EDC) into 4-aminomethyl [2,2] paracyclophane. The present invention further provides a chemical film and a method of forming the same. The chemical film contains poly-p-xylylene with disulfide functional group and is formed on a substrate by a chemical vapor deposition process.

The present invention provides a method of forming paracyclyophane containing disulfide functional group. The paracyclophane is prepared by adding 3,3-dithiodipropionic acid (DPDPA) and N-ethyl-N-(3-(dimethylamino)propyl)carbodiimide (EDC) into 4-aminomethyl [2,2] paracyclophane. The present invention further provides a chemical film and a method of forming the same. The chemical film contains poly-p-xylylene with disulfide functional group and is formed on a substrate by a chemical vapor deposition process.

The present invention relates to a novel method for preparing bis(3-aminophenyl) disulphides of the general formula (I) and 3-aminothiols of the general formula (II),

##STR00001##

where X,Y have the meanings stated in the description,
which serve as intermediates for the preparation of phenyl sulphoxides having insecticidal, acaricidal and nematicidal activity.

The present invention relates to a novel method for preparing bis(3-aminophenyl) disulphides of the general formula (I) and 3-aminothiols of the general formula (II),

##STR00001##

where X,Y have the meanings stated in the description,
which serve as intermediates for the preparation of phenyl sulphoxides having insecticidal, acaricidal and nematicidal activity.

The present invention relates to a novel method for preparing bis(3-aminophenyl) disulphides of the general formula (I) and 3-aminothiols of the general formula (II),

##STR00001##

where X,Y have the meanings stated in the description,
which serve as intermediates for the preparation of phenyl sulphoxides having insecticidal, acaricidal and nematicidal activity.

According to the present invention, a polythiol compound having a total nitrogen content of 50 to 600 ppm inclusive can be provided. According to the present invention, a method for producing the polythiol compound can also be provided, said method being characterized by comprising the steps of: reacting a polyalcohol with thiourea to prepare a thiuronium salt; and adding at least one base selected from the group consisting of hydrazine (hydrate), ammonia and an amine and an inorganic base (that is different from hydrazine (hydrate) or ammonia) to the thiuronium salt in the presence of an organic solvent to hydrolyze the thiuronium salt.