Sumitomo Chemical Company, Limited

Yoshiaki Oda

Kenji Saito

Sanshiro Matsuo

Shun-ichi Murahashi

Tsuyoshi Watanabe

Hidenori Hanaoka

Kazunori Iwakura

Hiroaki Katayama

Takahiro Hino

Makoto Yako

Akio Imai

Masahiko Mizuno

Masaaki Nabika

Akira Miyashita

Hiroshi Yamachika

Hiroshi Souda

Takaharu Ikeda

Kazuhiro Yamauchi

Kazuyuki Tanaka

Hirofumi Johohji

Hiroshi Sohda

Masao Yanagawa

A process for the preparation of a phenylhydrazine or an inorganic acid salt thereof of the formula (1):wherein X is a hydrogen or halogen atom; Y is a halogen atom; and W is a hydrogen atom or &#x2014;ZR in which Z is an oxygen or sulfur atom, and R is a hydrogen atom, an alkyl group, a haloalkyl group, and so on, by the hydrolysis of a phenylhydrazine derivative of the formula (2):where X, Y and W are the same as defined above, and the Q groups are a hydrogen atom, an ammonium group or an alkali metal atom in the presence of water and an inorganic acid, in which the concentration of the inorganic acid is at least 6 moles per 1 kg of water in a reaction system.

Process for the preparation of phenylhydrazines

Method for producing cyclopropanecarboxylates

Process for preparing pyridazin-3-on derivatives

A specified transition metal compound having two transition metals and two cyclopentadiene type anion skeletons in its molecule and said metals are linked through an atom of Group XVI of the Periodic Table of the Elements, an olefin polymerization catalyst component comprising said transition metal compound, an olefin polymerization catalyst comprising said transition metal compound, a specific organoaluminum compound, and a specific boron compound, and a process for producing an olefin polymer using said olefin polymerization catalyst.

Transition metal compound, olefin polymerization catalyst component, olefin polymerization catalyst and process for producing olefin polymer

Producing unsaturated esters by a lanthanide metal alkoxide catalyzed transesterification process

The present invention relates to a transition metal complex, a process for producing the same, a polymerization catalsyt containing the transition metal complex and a process for producing polymers which uses the catalysts.

Transition metal complex, process for producing the same, olefin polymerization catalyst containing the transition metal complex and process for producing olefin polymers

A specified transition metal compound having two transition metals and two cyclopentadiene type anion skeletone in tis molecule and said metals are linked through an atom of Group XVI of the Periodic Table of the Elements, and olefin polymerization catalyst component comprising said transition metal compound, an olefin polymerization catalyst comprising said transition metal compound, a specific organoaluminum compound, and a specific boron compound, and a process for producing an olefin polymer using said olefin polymerization catalyst.

A cyclopentadienyl metal salt is prepared by reacting a cyclopentadiene and a metal hydride in the presence of an amine compound. Furthermore, a derivative of a cyclopentadiene in which a phenyl group is bonded to its cyclopentadienyl moiety through an element of the 14 group of the Periodic Table is prepared using such a reaction.

Process for the preparation of cyclopentadienyl metal salt and process for the preparation of derivative of cyclopentadiene using the same

There is disclosed a method for producing an alkoxytitanium complex of formula (I), ##STR1## wherein Cp is a group having cyclopentadiene-type anion skeleton, A represents a carbon atom or silicon atom, R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5 and R.sup.6 each independently represent a hydrogen atom, an alkyl group having 1 to 10 carbon atoms which optionally may be substituted and the like, and R.sup.7 each independently represents an alkyl group having 1 to 10 carbon atoms which may be substituted and the like.

Method for producing titanium complex

Racemic or optically active threo-3-(3,4-dihydroxyphenyl)serine can be readily produced via a few short steps by a process involving the steps of reacting a racemic or optically active N-acyl DOPA derivative represented by the formula �I!: ##STR1## wherein X is a halogen atom; n is 0, 1, 2 or 3; R.sup.1 and R.sup.2 independently represent a protecting group for a hydroxyl group; R.sup.3 is a protecting group for carboxyl group; R.sup.4 is an alkyl group which may have a substituent or a phenyl group which may have a substituent; and a carbon marked with the symbol * is an asymmetric carbon, with a halogen radical generator, a cerium (IV) salt, or a persulfate salt in the presence of a copper catalyst to produce racemic or optically active oxazolines represented by the formula �IV!: ##STR2## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, X, n and * are as defined above; and thereafter conducting an oxazoline ring opening and removing R.sup.1, R.sup.2 and R.sup.3 and, optionally, removing X when n is 1, 2 or 3.

Process for producing threo-3-(3,4-dihydroxyphenyl)serine

A process for producing an aromatic peroxycarboxylic acid comprising reacting an aromatic aldehyde and oxygen in the presence of at least one oxide of a transition metal selected from chromium, manganese, iron, cobalt, nickel and copper in a solvent is provided. According to this invention, aromatic peroxycarboxylic acids can safely and easily be obtained in high yield without causing decomposition of the products.

Process for producing aromatic peroxycarboxylic acids

The present invention provides a process for producing a propargylcarbinol compound of formula (I): ##STR1## wherein R.sup.1 and R.sup.2 are as defined herein. The process comprises reacting a haloallylcarbinol compound of formula (II) with a base. The present invention also relates to a process for producing the haloallylcarbinol compound. The above propargylcarbinol compound is useful as an intermediate for agrochemicals, pharmaceuticals, perfumes, resin monomers, and the like.

Process for producing propargylcarbinol compounds

A process for producing an epoxide represented by the formula (2) which comprises reacting an olefin represented by the formula (1) with oxygen in the presence of an aldehyde and in the presence or absence of a proton source by using no catalyst or using an iron-containing or copper-containing catalyst. ##STR1##

Process for producing epoxide

The present invention provides a process for the oxidation of straight-chain, branched-chain or cyclic alkanes of 1-20 carbon atoms and benzene derivatives represented by the following formulas (1)-(2). The alcohols and ketones obtained by the oxidation of the alkanes mentioned above and those by the oxidation of the benzene derivatives mentioned above represented by the following formulas (3)-(6) are important as basic starting materials in producing various chemical products including resins, such as nylon and polyester, pharmaceuticals, agricultural chemicals, perfumes, dyes, etc. ##STR1##

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Toyonaka, Japan

Yoshiaki Oda