Nissan Chemical Industries Limited

Susumu Yamamoto

Tsutomu Nawamaki

Fumio Suzuki

Toshiaki Sato

Eiichi Oya

Takasi Ikai

Takashi Ikai

Katsushi Morimoto

Hiroshi Murakami

Yoshihiro Iwasawa

Isao Hashiba

Takuya Kakuta

Tosihiko Oguti

Kenji Hattori

Kenji Suzuki

Yoshihiro Fujikawa

Yasuo Kamuro

Koichi Hirai

Toshihiko Oguchi

Hidemi Mizutani

Noboru Shindo

Kakuta Takuya

Tunehiko Ohya

Disclosed herein is a process for producing N-alkylpyrazoles represented by the formula (1), which comprises reacting an alkali metal or an alkali metal-containing base with N- unsubstituted pyrazoles represented by the formula (2), to form an alkali metal salt thereof and, subsequently, reacting the obtained alkali metal salt with an alkylating agent. ##STR1##

Process for producing n-alkylpyrazoles

There are disclosed halogeno-4-methylpyrazoles represented by the formula (I): ##STR1## wherein R represents an alkyl group having 1 to 4 carbon atoms, a substituted or unsubstituted phenyl group or a substituted or unsubstituted pyridyl group; X represents a hydrogen atom or a halogen atom; and Y represents a halogen atom, and a process for preparing the same which comprises reacting 1-substituted-4-methylpyrazoles of the formula (II): ##STR2## wherein R has the same meaning as defined above, with a halogen.

Halogeno-4-methylpyrazoles

Disclosed herein is a process for producing N-alkylpyrazoles represented by the formula (1), which comprises reacting an alkali metal or an alkali metal-containing base with N- unsubstituted pyrazoles represented by the formula (2), to form an alkali metal salt thereof and, subsequently, reacting the obtained alkali metal salt with an alkylating agent. ##STR1## R.sup.1 : H, C.sub.1 -C.sub.4 alkyl; R.sup.2 : C.sub.1 -C.sub.4 alkyl;

Process for producing N-alkylpyrazoles

A process for growing wheat and selectively preventing or controlling the growth of wild oats in the same site in which the wheat is being cultivated which comprises applying to said site an amount of an active compound sufficient to control the growth of wild oats without adversely affecting the growth of the wheat, said active compound being N-[(4,6-dimethylpyrimidin-2-yl)aminocarbonyl]-4-methoxycarbonyl-3-methyl-1 -(2-pyridyl)pyrazole-5-sulfonamide or N-[(4,6-dimethylpyrimidin-2-yl)aminocarbonyl]-4-methoxycarbonyl-1-(2-pyrid yl)pyrazole-5-sulfonamide.

Wheat growing process utilizing selective herebicide

Disclosed are a pyrazolesulfonamide derivative represented by Formula (I): ##STR1## wherein B, D, Q, E, W and G have the same meaning as defined in the specification, a process for its production and a herbicide containing it.

Pyrazolesulfonamide derivative, and herbicide containing it

There is disclosed imidazolesulfonamide derivatives represented by the general formula (I): ##STR1## wherein Q, m, R, B, D and T represent a group as specified in the specification and

Imidazolesulfonamide derivatives and herbicides

The present invention provides novel compounds which are intermediates in the production of the compounds of the formula (I). These novel intermediates have the following general formula ##STR1## wherein Z is NH.sub.2 or chlorine, R.sup.1 is chlorine or bromine and R.sup.2 is methyl or ethyl.

Pyrazolesulfonylurea amides and chlorides

There are disclosed a compound formula (I): ##STR1## wherein R.sup.1 represents a chlorine atom or a bromine atom; R.sup.2 represents methyl or ethyl; and X represents methyl or methoxy; a herbicidal composition containing the same as an active ingredient; and a method of use of the compound represented by formula (I) for controlling the growth of weeds without harm to crop plants in the same location.

Pyrazolesulfonylurea useful for controlling the growth of undesired

A plant growth regulator comprising, as the active substance, one or more of N-substituted alanine derivatives of the general formula: ##STR1## wherein X represents halogen atom or trifluoromethyl, R represents hydrogen, straight chain or branched chain alkyl having 1-4 carbon atoms, alkenyl having 2-4 carbon atoms, an alkali metal atom or amine-forming residue, and n is zero or an integer of 1 or 2, with the proviso that when n is 2, X may be same or different, together with an inert carrier or diluent, in particular, an agent effective for controlling suckers of tobacco, and a process for regulating plant growth by using said plant growth regulator.

Process for controlling the growth of suckers on a tobacco plant

N-(Unsubstituted or substituted pyridyl)aminomethylene-diphosphonic acids represented by the formula: ##STR1## wherein each of R.sup.1, R.sup.2 and R.sup.3 is independently hydrogen or lower alkyl, and each of X and Y is independently hydrogen, halogen, nitro, acetamino, carboxyl, lower alkyl, methoxycarbonyl, hydroxyl or methoxy, and salts thereof, have effective herbicidal effects on postemergence of plants and selective inactivity against cotton plants.

Growing community of inventors

Funabashi, Japan

Susumu Yamamoto