Sumitomo Chemical Company, Limited

Toshio Nagatomi

Yoshimi Yamada

Akihiko Nakamura

Katuhisa Masumoto

Noriyasu Sakamoto

Kazunori Tsushima

Kimitoshi Umeda

Masaya Suzuki

Shigeki Yokoi

The subject is to provides a process for producing 1-substituted-hydantoins of Formula I: ##STR1## wherein R.sub.1 represents d hydrocarbon group which may be substituted and others, cheracterized by reacting N-sustituted-N-alkcycarbonylamnilo-acetonitrile of Formula II: ##STR2## wherein R.sub.2 represents an alkyl group and others, with an alkali metal hydroxides or the like and then treating with an acid.

Process for producing 1-substituted-hydantoins

There is disclosed a dihalopropene compound of the formula I: ##STR1## wherein l is an integer of 1 to 5; m is an integer of 1 to 4; R.sup.1 's and R.sup.2 's are the same or different and are independently halogen or various other groups; D is oxygen; X's are the same or different and are independently chlorine or bromine; Y is oxygen; Z, P and Q are the same or different and are independently nitrogen or CH, provided that P and Q are not simultaneously nitrogen, and when Y is sulfur, Z is CH. Also disclosed is an insecticide/acaricide comprising the dihalopropene compound as an active ingredient. The dihalopropene compound exhibits excellent insecticidal/acaricidal action. Further disclosed is an intermediate compound for use in the production of the dihalopropene compound.

Intermediate compound for use in production of dihalopropene compound

There is disclosed a process of producing a 2-iminothiazoline derivative of the general formula �II!, characterized in that a thiourea derivative of the general formula �I! is treated with an acid. Also disclosed are a process of producing an N-substituted N-arylcyanamide derivative of the general formula �VI!, characterized in that an N-arylcyanamide derivative of the general formula �IV! is reacted with an allyl halide derivative of the general formula �V! in an aprotic polar solvent in the presence of an iodide and an alkali metal carbonate; and a process of producing an N-substituted N-arylthiourea derivative of the general formula �VII!, characterized in that an N-substituted N-arylcyanamide derivative of the general formula �VI! obtained as described above is further reacted with a chemical species which generates sulfide ion or hydrogensulfide ion.

Process of producing 2-iminothiazoline derivatives and process of

There is disclosed a process of producing a 2-iminothiazoline derivative of the general formula [II], characterized in that a thiourea derivative of the general formula [I] is treated with an acid. Also disclosed are a process of producing an N-substituted N-arylcyanamide derivative of the general formula [VI], characterized in that an N-arylcyanamide derivative of the general formula [IV] is reacted with an allyl halide derivative of the general formula [V] in an aprotic polar solvent in the presence of an iodide and an alkali metal carbonate; and a process of producing an N-substituted N-arylthiourea derivative of the general formula [VII], characterized in that an N-substituted N-arylcyanamide derivative of the general formula [VI] obtained as described above is further reacted with a chemical species which generates sulfide ion or hydrogensulfide ion.

Growing community of inventors

Takarazuka, Japan

Toshio Nagatomi