Sumitomo Chemical Company, Limited

Hiroshi Kishida

Nobushige Itaya

Ichiki Takemoto

Fumio Fujita

Takashi Hara

Takashi Arimura

Masaki Kitahara

Takeshi Ishiyama

Takeshi Yoshioka

An inorganic porous carrier including a linker of formula (1), wherein a mode diameter in a pore distribution is 0.04 μm to 1 μm, and a predetermined cumulative pore volume ratio is 30% or less [a bond * represents a linkage to the oxygen atom of a silanol group in an inorganic porous substance; n is an integer; R represents independently of each other an alkyl group containing 3 to 10 carbon atoms which may optionally have a substituent such as an alkoxy group; and L represents a single bond; an alkylene group of 1 to 20 carbon atoms; or an alkylene group containing 2 to 20 carbon atoms which contains —CH-Q-CH— group wherein any group Q selected from a group consisting of —O— etc. is inserted into at least one of —CH—CH— group constituting the alkylene group]; and a method for preparing a nucleic acid using the same.

Porous inorganic carrier and method for producing nucleic acid using same

A compound of the formula: ##STR1## which is useful as a herbicide, is effectively produced by reacting a compound of the formula: ##STR2## with dimethyl sulfate in a two phase reaction medium consisting of water and a hydrophobic organic solvent in the presence of a phase transfer catalyst, or produced through a novel intermediate of the formula: ##STR3##

Production of substituted phenylurea

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Takarazuka, Japan

Hiroshi Kishida