Kao Corporation

Makoto Sakakibara

Jun Deguchi

Takehiro Tsutsumi

Daichi Sakoda

Kenji Kaida

Ryuma Mizushima

Shigemi Wakabayashi

Nobushige Tanaka

Shigeki c/o Kao Corporation Research Laboratories Nagashima

Toshiya c/o Kao Corporation Research Laboratories Iwasaki

Provided is a method with which an &#x3b1;-allylated cycloalkanone is obtained from a macroyclic compound used as a starting material. The method is a method for producing an &#x3b1;-allylated cycloalkanone represented by General Formula (IV), and the method includes a step of reacting a compound represented by General Formula (I) and/or a compound represented by General Formula (II) with a compound represented by General Formula (III) in the presence of an acid catalyst to produce an &#x3b1;-allylated cycloalkanone represented by General Formula (IV), the acid catalyst including an acid catalyst that includes an ammonium cation and an anion. where R, R, and Rare the same or different and each of them is an alky group having 1 or mom and 4 or less of carbon atoms, the group -A- (it should be noted that the front bond refers to a bond that binds to the carbon atom Cand the back bond refers to a bond that binds to the carbon atom C) is an alkylene group having 4 or more and 20 or les of carbon atoms that optionally contains a hetero atom and optionally has a substituent, and Ris a hydrogen atom or an alkyl group having 1 or more and 4 or less of carbon atoms.

Method for producing &#x3b1;-allylated cycloalkanone

Provided is a method with which an &#x3b1;-allylated cycloalkanone is obtained from a cyclic compound cycloalkanone used as a starting material. The method is a method for producing an &#x3b1;-allylated cycloalkanone represented by General Formula (III), and the method includes: a step 1: reacting a compound represented by General Formula (I) and alcohol having 1 or more and 4 or less of carbon atoms in the presence of a first acid catalyst and optionally a dehydrating agent; and a step 2: reacting a crude product obtained in the step 1 and a compound represented by General Formula (II) in the presence of a second acid catalyst to produce an &#x3b1;-allylated cycloalkanone represented by General Formula (III). The step 1 and the step 2 are consecutively performed. In the formulae above, the group -A- (it should be noted that the front bond refers to a bond that binds to the carbon atom Cand the back bond refers to a bond that binds to the carbon atom C) is an alkylene group having 4 or more and 20 or less of carbon atoms that optionally contains a hetero atom and optionally has a substituent, and Ris a hydrogen atom or an alkyl group having 1 or more and 4 or less of carbon atoms.

Method for producing alpha-allylated cycloalkanone

A water-based ink containing an aqueous dispersion of water-insoluble vinyl polymer particles containing a pigment, wherein the water-insoluble vinyl polymer is prepared by copolymerizing a monomer mixture containing (a) a monomer having a salt-forming group, (b) a monomer having a long-chain alkyl group, (c) a macromer, (d) a monomer having a polyoxyalkylene group, and (e) a monomer copolymerizable with the monomer having a salt-forming group (a), the monomer having a long-chain alkyl group (b), the macromer (c) and the monomer having a polyoxyalkylene group (d). The water-based ink can be suitably used, for instance, as a water-based ink for inkjet recording and the like.

Water-based ink

An oil-soluble dye prepared by subjecting a water-soluble dye having at least one group selected from the group consisting of sulfonate group and carboxyl group in its molecule to amidation: a water-based ink comprising the oil-soluble dye: and a process for preparing an oil-soluble dye, comprising halogenating a water-soluble dye having at least one group selected from the group consisting of sulfonate group and carboxyl group in its molecule, and thereafter subjecting the resulting halogenated water-soluble dye to amidation. The Oil-soluble dye of the present invention can be suitably and favorably used for inks for inkjet recording, inks for ball-points pens, inks for markers, toners, paints such as lacquers, inks for felt pens, and the like.

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Wakayama, Japan

Makoto Sakakibara