Daicel Chemical Industries, Ltd.

New Japan Chemical Co., Ltd.

Yoshihiro Kihara

Hiroto Tanigawa

Kango Fujitani

Masahide Ishikawa

Koichi Okumura

Sachio Kitagawa

Yoshihiro Ishibashi

Taiichiro Iwamura

Masaya Uenoya

Disclosed are, for example, a process for producing a tricarboxylic acid tris(alkyl-substituted cyclohexylamide), the process comprising subjecting a tricarboxylic acid and an alkyl-substituted cyclohexylamine to an amidation reaction, either (a) in the presence of a boric acid compound and a phenol compound or (b) in the presence of a boric acid ester obtained by the dehydration condensation of a boric acid compound and a phenol compound, and optionally purifying the resulting crude reaction product.

Process for producing tricarboxylic acid tris (alkyl-substituted cyclohexylamide)

An alicyclic unsaturated alcohol (for example, tetrahydrobenzyl alcohol) having the purity of 99% by weight or more, the water content of 0.1% by weight or less and the acid value of 0.1 mg KOH/g or less can be produced, with high selectivity, by hydrogenating using an unsaturated cyclic aldehyde having the acid value of 10 mg KOH/g or less as a raw material; terminating the hydrogenation in the conversion of 70 to 99.8%; and rectifying the reaction product containing the unreacted unsaturated cyclic aldehyde. The high purity alicyclic unsaturated alcohol is useful as raw material chemicals for synthesizing drugs, agricultural chemicals, perfumes, and dyes etc.

Process for producing an alicyclic unsaturated alcohol

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Kyoto, Japan

Yoshihiro Kihara