Nissan Chemical Industries Limited

Hideki Takamatsu

Koichi Maeda

Shinichiro Takigawa

Satoshi Hoshiyama

Hiroshi Kobayashi

Fumio Suzuki

Takeshi Mita

Ryozo Sakoda

Gozyo Sakata

Yasukazu Ura

Shuichi Fukushima

Masahito Yoshimura

Hiroyuki Mutoh

An auric compound such as a halogenoauric acid is reacted with a mercaptan of a formula: ##STR1## whereupon the proportion of the mercaptan is from 2.70 to 2.99 mols per mol of the auric compound, to prepare an organic gold compound of a formula: ##STR2## wherein X is a halogen atom, Y and Z are independently a hydrogen atom or a hydrocarbon group having from 1 to 18 carbon atoms, n is a number of from 0.01 to 0.30, m is a number of from 0.7 to 0.99, and the total of n and m is from 0.8 to 1.2. The organic gold compound has a high solubility in organic solvent such as terpineol.

Organic gold compounds and method of preparing the same

A thin platinum film is formed on a substrate of glass, alumina or pottery by applying on the surface of the substrate a solution containing one part by weight of an organic platinum complex represented by formula (I):

Thin platinum film-forming composition

A process for producing a phosphinylamino acid derivative of the formula: ##STR1## wherein R.sup.1 is a lower alkyl group, R.sup.2 is a hydrogen atom, a lower alkyl group, a halo-lower alkyl group or a substituted or unsubstituted phenyl group, and R.sup.3 is a substituted or unsubstituted alkyl group or a substituted or unsubstituted phenyl group, which comprises reacting a compound of the formula: ##STR2## wherein R.sup.1 and R.sup.2 are as defined above, and/or a compound of the formula: ##STR3## wherein R.sup.1 and R.sup.2 are as defined above, with a compound of the formula:

Process for producing phosphinylamino acid derivatives

An aliphatic, cycloaliphatic or aromatic polyol is incorporated in a catalyst of an organoaluminum halide and a nickel compound. The catalyst is used for a dimerization or codimerization of a lower monoolefin to improve a reaction velocity and a stability in the reaction.

Process for dimerizing or codimerizing lower monoolefin

In a dimerization of butenes containing isobutene, a formation of 2,2,4-trimethyl pentenes is minimized by using a specific nickel catalyst solution and an organoaluminum catalyst. The specific nickel catalyst is a nickel salt of a fatty acid having 1.5 to 40 wt. % of a free fatty acid and less than 0.1 wt. % of water. The C.sub.8 olefins having less 2,2,4-trimethyl pentenes obtained by the dimerization are quite important to produce excellent plasticizer.

Dimerization of butenes containing isobutene to minimize 2,2,4-trimethyl

In a process for producing phenylphosphonothioic dichloride by reacting benzene with thiophosphoryl trichloride, an improvement is characterized in that the reaction is conducted in the presence of a catalyst selected from the group consisting of Al, AlCl.sub.3, a combination of AlCl.sub.3, P.sub.2 S.sub.5 and PCl.sub.3, a combination of AlCl.sub.3 and P.sub.2 S.sub.5, and a combination of AlCl.sub.3 and PCl.sub.3, under the self-generated pressure of hydrogen chloride gas.

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Funabashi, Japan

Hideki Takamatsu