Patents Assigned to Tate & Lyle Ltd.
  • Synthesis of S-3-chloro-1,2-propanediol
    Patent number: 4313008
    Abstract: The S-enantiomer of 3-chloro-1,2-propanediol is prepared by reaction of a chlorodeoxy-D-saccharide having the partial structure. ##STR1## to cleave the glycol, reduce the aldehyde so formed to an alcohol, and hydrolyse the alcohol under mild acidic conditions.
    Type: Grant
    Filed: May 17, 1979
    Date of Patent: January 26, 1982
    Assignee: Tate & Lyle Ltd.
    Inventor: Haydn F. Jones
  • Sucrose derivatives
    Patent number: 4156776
    Abstract: A novel cyclic acetal derivative of sucrose, 4,6-O-isopropylidenesucrose, is prepared by treating sucrose with 2,2-dimethoxypropane in N,N-dimethylformamide, in the presence of p-toluenesulphonic acid, suitably at room temperature. The product is conveniently isolated in the form of its hexa-acetate or hexabenzoate, by treatment with acetic anhydride or benzoyl chloride, respectively, in pyridine. The resulting compounds are valuable as synthetic intermediates and in conformational investigations.
    Type: Grant
    Filed: May 25, 1977
    Date of Patent: May 29, 1979
    Assignee: Tate & Lyle Ltd.
    Inventors: Khizar S. Mufti, Riaz A. Khan
  • Sweetening compositions containing protein sweeteners
    Patent number: 4122205
    Abstract: A sweetening composition comprising a protein sweetener together with at least one taste modifier comprising a sweetener selected from L-gulose, D-fucose, xylitol, D-arabitol, lactulose, glucoheptose, D(+)-galactose and its derivative D(+)-galactosamine or a salt thereof, and saccharin possesses enhanced sweetening properties as compared with a composition containing no sweetness modifier; the sweetness profile is more rounded and unpleasant after-tastes are minimized.
    Type: Grant
    Filed: July 2, 1976
    Date of Patent: October 24, 1978
    Assignee: Tate & Lyle Ltd.
    Inventors: Malcolm Leonard Ernest Burge, Zdenek Nechutny