Mcneil-ppc, Inc.

Noramco Gmbh

Other

Robert E Walkup

Juan L Navia

Nicholas M Vernon

David S Neiditch

Robert E Wingard, Jr

Steven J Catani

Kathleen S Laurenzo

A process for preparing functional sugar polymers comprising transferring a monosaccharide or oligosaccharide to an acceptor, removing by-products, separating polymers which have not achieved the desired chain length and recycling these underdeveloped polymers, and an apparatus for producing same.

Functional sugar polymers from inexpensive sugar sources and apparatus for preparing same

There is disclosed a process for recovering sucralose-6-ester from a feed mixture of 6-O-acyl-4,1',6'-trichloro-4,1',6'-trideoxygalactosucrose in a reaction medium comprising a tertiary amide (such as N,N-dimethylformamide), wherein said process comprises removing a major proportion of said tertiary amide by steam distillation. In preferred aspects of the invention, the steam distillation is followed by extraction and then purification by crystallization or crystal aging to recover sucralose-6-ester in good yield.

Recovery of sucralose intermediates

There is disclosed a process for producing sucralose from sucralose-6-ester whereby the sucralose-6-ester is deacylated directly either prior to or after removal of the tertiary amide reaction vehicle from the neutralized chlorination reaction mixture, to produce an aqueous solution of sucralose plus salts and impurities, from which sucralose is recovered by extraction and is then preferably purified by crystallization.

Production of sucralose without intermediate isolation of crystalline

A process for producing substantially pure sucralose pentaester from a mixture of 6-O-acyl-4,1' ,6' -trichloro-4,1',6'-trideoxygalactosucrose in a reaction medium comprising a tertiary amide, wherein said process comprises the steps of:

Sucralose pentaester production

There is disclosed a process which comprises the steps of:

Selective 6-acylation of sucrose mediated by cyclic adducts of

A process which comprises extracting 1,3-diacyloxy-1,1,3,3-tetra(hydrocarbyl) distannoxane from a mixture containing 1,3-diacyloxy-1,1,3,3-tetra(hydrocarbyl)distannoxane, a sucrose-6-ester, and polar aprotic solvent, which process comprises the steps of:

Process for recovery of organotin esters from reaction mixtures

A process for the chlorination of sucrose-6-esters to produce 6',4,1'-trichlorosucrose-6-esters which comprises the steps of:

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Watkinsville, GA, United States of America

Robert E Walkup