C - Chemistry – Metallurgy – 07 – H
Patent
C - Chemistry, Metallurgy
07
H
C07H 15/04 (2006.01) C07H 3/06 (2006.01)
Patent
CA 2065265
62 ABSTRACT OF THE DISCLOSURE An alkylated oligosaccharide and the acetyl derivative of the same, both useful as the raw material for producing lowly toxic surfactants or medicines. The alkylated oligosaccharide is prepared by substituting with an alkyl group having a linear or branched chain the hydrogen atom of the hydroxy group at the 1-position of a terminal sugar moiety of an oligosaccharide in which glucose moieties are .beta.(1?3)-glycoside-linked, or of an oligosaccharide in which galactose is .beta.(1?4)-glycoside-linked at the 4-position in the galactose moiety of lactose and in which galactose moieties are .beta.(1?4)-glycoside-linked in succession to the newly formed terminal galactose moieties. The invention also includes an acetyl derivative of the oligosaccharide, wherein the hydroxy groups excluding the 2-positional hydroxy group adjacent to the alkyl-ether-linking position in the terminal sugar moiety are acetylated, and a mixture thereof. In addition, an acetylated oligosaccharide is allowed to react with an alcohol using a heteropolyacid as the reacting agent.
Adachi Koichiro
Ikushima Naoya
Katsuraya Kaname
Shoji Tadao
Takahashi Nahoko
Dainippon Ink & Chemicals Inc.
Kirby Eades Gale Baker
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