Loading patent…
AssigneeMitsubishi Gas Chemical Company, Inc.
InventorsTakao Kawaki, Yuh Miyauchi, Toshio Watanabe, Katsushige Hayashi, Satoshi Ueno, Hiroshi Ogawa, Fumiya Zaima
Estimating the term…
A process for producing a carboxylated compound, which comprises reacting a carbonyl compound with hydrogen peroxide in the presence of an organo-arsenic acid of the formula (1), ##STR1## wherein: R.sup.1 is a C.sub.1 -C.sub.12 alkyl group which may be substituted or an aryl group which may be substituted, R.sup.2 is a hydroxyl group or the same group as that which defines R.sup.1, or alternatively, R.sup.1 and R.sup.2 may bond to each other to form a five-membered or six-membered ring together with As atoms to which these groups are bonded, and the substituent(s) substituted on the above groups is/are selected from hydroxyl, carboxyl, carbonyl, sulfonyl, sulfonium, an amino group, an ammonium group, an alkyl group, an alkoxyl group and a halogen atom, while a water concentration in a reaction system is maintained at not more than 2% by weight, thereby to form a corresponding carboxylated compound.
A process for producing a carboxylated compound, which comprises reacting a cyclic ketone with hydrogen peroxide in the presence of an organo-arsinic acid of the formula (1), ##STR7## to form a reaction system, the reaction system containing not more than 2% by weight of water during the reaction, wherein each of R.sup.1 and R.sup.2 is, independently, a C.sub.1-12 alkyl group which may be substituted or an aryl group which may be substituted, or alternatively, R.sup.1 and R.sup.2 may bond to each other to form a five-membered or six-membered ring together with As atoms to which these groups are bonded, and the substituent(s) substituted on the above groups is/are selected from hydroxyl, carboxyl, carbonyl, sulfonyl, sulfonium, amino, ammonium, alkyl, alkoxy and halogen, to thereby form the corresponding carboxylated compound which is a lactone.
Dependencies are inferred from the claim text.