| abstract |
FIELD: chemistry. n SUBSTANCE: invention relates to a method for synthesis of at least one compound of formula (I) or one of its salts, in which R is a group of COOH, CH 2 OH or CHO, where but-3-ene-1,2-diol (BDO) is subjected to oxidation in the presence of a catalyst containing an active phase based on at least one noble metal selected from palladium, gold, silver, platinum, rhodium, osmium, ruthenium and iridium, and a substrate containing alkaline sites and selected from hydrotalcites (HT), brucites, hydroxyapatite Ca 10 (PO 4 ) 6 (OH) 2 , tricalcium phosphate Ca 3 (PO 4 ) 2 , calcium hydrophosphate CaHPO 4 (0–2) H 2 O, calcium diphosphate Ca 2 P 2 O 7 , octaculphosphate Ca 8 H 2 (PO 4 ) 6 .5H 2 O, tetrapotassium phosphate Ca 4 (PO 4 ) 2 O, amorphous calcium phosphates Ca 3 (PO 4 ) 2 .nH 2 O, oxides, hydroxides, carbonates, bicarbonates, phosphates, diphosphates and hydrophosphates of calcium, cesium, lithium, rubidium, potassium, magnesium, barium, cerium, lanthanum, aluminum, zinc, copper and their mixtures. n Formula (I). n EFFECT: invention also relates to use of said reaction for producing bio-accessible methionine compounds used, in particular, for feeding animals. n 11 cl, 2 dwg, 3 ex |