Research Association for Utilization of Light Oil

Mitsubishi Petrochemical Company Limited

Takashi Yokoi

Makoto Imanari

Sadao Kitagawa

Masaki Odagiri

Kunimasa Takahashi

Mitsumasa Kaitoh

Katufumi Kuzira

Mitsumasa Kaito

Disclosed is a process for preparing DL-serine, which comprises synthesizing DL-serine according to Strecker reaction with use of a cyan compound, ammonium chloride, ammonia and a reaction substrate comprising glycol aldehyde, wherein the Strecker reaction is carried out under the reaction conditions of:

Process for preparing DL-serine and process for separation and

There is disclosed a process for preparing glycol aldehyde from ethylene glycol by use of a complex system catalyst comprising copper and other inorganic component, which comprises permitting 0.001 to 0.3 mole of oxygen per one mole of ethylene glycol to be copresent in the reaction system.

Process for preparing glycol aldehyde

Alkaline earth metal salts of aziridine-2-carboxylic acid, typically Ca salt, are produced by a reaction of a 2,3-dihalopropionic acid derivative or an .alpha.-haloacrylic acid derivative with an aqueous ammonia in the presence of an alkaline earth metal hydroxide, typically Ca(OH).sub.2. Salts of aziridine-2-carboxylic acid are recovered from such a reaction product as referred to above by a liquid chromatographic technique in which a weak or weakened cation exchanger is utilized.

Production of aziridine-2-carboxylic acid salts

Dioxane derivatives are disclosed which are represented by the formula (I): ##STR1## wherein, R stands for a hydrogen atom or an aliphatic residue having 1 to 10 carbon atoms; R.sup.1 and R.sup.2 stand for a hydrogen atom or a hydrocarbon residue having 1 to 10 carbon atoms, respectively; and R, R.sup.1 and R.sup.2 which exist plurally may be the same or different, respectively. Such dioxane derivatives (I) are produced by reacting a glycolaldehyde represented by the formula (II) ##STR2## with an amine represented by the formula (III)

2,5-diamino-1,4-dioxane derivatives and process for production thereof

A process for preparing corresponding alkyl-substituted aromatic compounds by the gas phase catalytic dehydrogenation of vinylcycloalkenes in the presence of a dehydrogenation catalyst supported on a carrier, said catalytic dehydrogenation being carried out

Growing community of inventors

Shiga, Japan

Takashi Yokoi