| abstract |
PROBLEM TO BE SOLVED: To provide a method for preparing an alkyl glycoside. The present invention provides a general scheme, (Glyc-O) z H + R 1 -OH → (Glyc-O) z 'R 1 (Where z ≧ 1, z ′ ≦ z, preferably 1 to 10, (Glyc-O)-is a glycoside group, R 1 is a hydrocarbon group optionally containing multiple bonds and / or heteroatoms) According to a method for preparing an alkyl polyglycoside from a glycoside monomer, oligo-, or polyglycoside and an alcohol that serves as both a solvent and a reactant, the reaction is supercritical of the alcohol. Under conditions, preferably under a pressure and temperature of at least 5% above the critical conditions. [Selection] Figure 1 |