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Results 1-10 of 1,845 for Criteria:CHEM:(FBPFZTCFMRRESA-UHFFFAOYSA-N) Office(s):all Language:en Stemming: false
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TitleCtrPubDate
Appl.NoApplicantInventorInt.Class
METHOD OF CATALYTIC CONVERSION OF CELLULOSE IN HEXITOLS
RU10.11.2013
2012143179/04Филатова Анастасия Евгеньевна (RU)
C07C 31/26
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
C
ACYCLIC OR CARBOCYCLIC COMPOUNDS
31
Saturated compounds having hydroxy or O-metal groups bound to acyclic carbon atoms
18
Polyhydroxylic acyclic alcohols
26
Hexahydroxylic alcohols
FIELD: chemistry. SUBSTANCE: invention relates to field of processing renewable raw material (in particular, cellulose) into raw material for chemical synthesis and biofuels. Method of catalytic conversion of cellulose in hexitols includes carrying out process of hydrolytic hydration of cellulose for 3-7 minutes at temperature 240-250°C under partial pressure of hydrogen 55-65 atm and with mixing of reaction medium in presence of ruthenium catalyst, according to invention as substrate for ruthenium catalyst applied is hypercrosslinked polystyrene of MN 270 grade, and content of ruthenium in catalyst constitutes from 1.0 to 1.5 wt % of catalyst weight. Mixing of reaction mixture is realised by propeller mixer, numbers of turns of which constitutes 580-620 rev/min. EFFECT: increased method efficiency. 2 cl, 16 ex

PROCESS FOR THE PREPARATION OF 1,5-DIDEOXY-1,5-IMINO HEXITOLS FROM OXIMES OR IMINES
KR27.03.2002
1020017011513MICHIGAN STATE UNIVERSITYHOLLINGSWORTH RAWLE I.
C07D 211/36
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
D
HETEROCYCLIC COMPOUNDS
211
Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings
04
with only hydrogen or carbon atoms directly attached to the ring nitrogen atom
06
having no double bonds between ring members or between ring members and non-ring members
36
with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms

A process for the preparation of 1,5-dideoxy-1,5-imino hexitols of a hexose sugars from novel hydroxyl protected oxime intermediates. The process includes formation of a lactam which is reduced to the hexitol. The hexitols are useful as drugs.

© KIPO & WIPO 2007


METHOD FOR MANUFACTURING ANHYROSUGAR ALCOHOLS OF DIOL FORM FROM HEXITOL
KR06.07.2011
1020090132933SAMYANG GENEX CORPORATIONRYU, HOON
C07D 493/04
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
D
HETEROCYCLIC COMPOUNDS
493
Heterocyclic compounds containing oxygen atoms as the only ring hetero atoms in the condensed system
02
in which the condensed system contains two hetero rings
04
Ortho-condensed systems
PURPOSE: A method for manufacturing anhydosugar alcohol using hexitol is provided to enhance glass transition temperature of PET, polyester, polycarbonate and to improve strength. CONSTITUTION: A method or manufacturing anhydrosugar comprises a step of dehydrating of hexitol with mixed acid of first and second acids at 105-190°C for 1-10 hours. The first acid is sulfuric acid. The second acid is p-toluene sulfonic acid, methane sulfonic acid, ethane sulfonic acid, benzene sulfonic acid, naphthalene sulfonic acid, or aluminum sulfate. The hexitol is sorbitol, mannitol, or iditol. COPYRIGHT KIPO 2011

Process for the preparation of 1,5-dideoxy-1, 5-imino hexitols from oximes or imines
US06.06.2002
09971233Board of Trustees of Michigan State UniversityHollingsworth, Rawle I.
C07H 5/04
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
H
SUGARS; DERIVATIVES THEREOF; NUCLEOSIDES; NUCLEOTIDES; NUCLEIC ACIDS
5
Compounds containing saccharide radicals in which the hetero bonds to oxygen have been replaced by the same number of hetero bonds to halogen, nitrogen, sulfur, selenium, or tellurium
04
to nitrogen

A process for the preparation of 1,5-dideoxy-1,5-imino hexitols of a hexose sugars from novel hydroxyl protected oxime intermediates. The process includes formation of a lactam which is reduced to the hexitol. The hexitols are useful as drugs.


Alkylated hexitol nucleoside analogues and oligomers thereof
US19.02.2004
10362660Van Aerschot Arthur
C07H 5/04
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
H
SUGARS; DERIVATIVES THEREOF; NUCLEOSIDES; NUCLEOTIDES; NUCLEIC ACIDS
5
Compounds containing saccharide radicals in which the hetero bonds to oxygen have been replaced by the same number of hetero bonds to halogen, nitrogen, sulfur, selenium, or tellurium
04
to nitrogen

The present invention is directed to nucleoside analogues with as substitute for the sugar part a 1,5-anhydrohexitol moiety, doexygenated and substituted with a nucleobase at the 2-position, of which the hexitorl ring is further substituted with at least one alkoxy substituent at the 3-position or at the 1-position, and to oligonucleotides wherein at least some of the nucleotides are part of the afore mentioned hexitol nucleoside analogues and exhibit sequence-specific hydridization to complementary sequences of nucleic acids, and maintaining or improving the hybridisation strength. The invention further relates to nucleoside analogues with a 1,5-anhydrohexitol moiety as the sugar part, deoxygenated and substituted with a nucleobase at the 2-position, of which the hexitol ring is substituted with a methoxy substituent at the 1-position, having at the same time either a hydroxy or an alkoxy group at the 3-position, or having a 3-deoxygenated position. The inclusion of one or more of the afore mentioned hexitol nucleoside analogues in oligonucleotides provides, inter alia, either for improved binding or for maintained binding of these oligonucleotides to a complementary strand. This invention further relates to the chemical synthesis of these oligomers which are useful diagnostics, therapeutics and as research agents.


Method for preparing high purity anhydrosugar alcohols by thin film distillation
CN25.03.2015
201380024324.2SAMYANG GENEX CORPORATIONKYUNG DO-HYUN
C07C 29/80
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
C
ACYCLIC OR CARBOCYCLIC COMPOUNDS
29
Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
74
Separation; Purification; Stabilisation; Use of additives
76
by physical treatment
80
by distillation
The present invention relates to a method for preparing high purity anhydrosugar alcohols using hydrogenated sugar, and more specifically, to a method for preparing high purity anhydrosugar alcohols (particularly, isosorbide, isomannide, isoidide, and the like) with a purity of 97.5% or higher (more preferably, 98.5% or higher) and a pH of a distillate of 3.7 or higher (more preferably, 4.0 or higher) in a distillation yield of 87% or higher (more preferably, 90% or higher) by adding an acid to hexitol so as to convert the same into anhydrosugar alcohols, and single-stage distilling the converted product by using an internal condenser type thin film evaporator.

PRODUCTION METHOD OF ANHYDROUS SUGAR ALCOHOL HAVING REMARKABLY REDUCED ION CONTENTS AND IMPROVED COLOR CHARACTERISTIC
KR20.11.2013
1020120050188SAMYANG GENEX CORPORATIONJUNG, YOUNG JAE
C07C 29/08
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
C
ACYCLIC OR CARBOCYCLIC COMPOUNDS
29
Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
03
by addition of hydroxy groups to unsaturated carbon-to-carbon bonds, e.g. with the aid of H2O2
04
by hydration of carbon-to-carbon double bonds
05
with formation of absorption products in mineral acids and their hydrolysis
08
the acid being phosphoric acid
The present invention relates to a production method of anhydrous sugar alcohol having remarkably reduced ion contents and improved color characteristic, more specifically to a production method of the anhydrous sugar alcohol having remarkably reduced ion contents and conductivity, and improved color characteristic by dehydrating hydrogenated sugar ​(sugar alcohol) to obtain the anhydrous sugar alcohol, distilling the anhydrous sugar alcohol before decolorizing the distilled product with activated charcoal, and contacting the decolorized product with an ion exchange resin. COPYRIGHT KIPO 2014 >

Production method for anhydro sugar alcohol having markedly reduced ion content and improved colour characteristics
CN18.03.2015
201380024022.5株式会社三养社郑英在
C07C 29/08
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
C
ACYCLIC OR CARBOCYCLIC COMPOUNDS
29
Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
03
by addition of hydroxy groups to unsaturated carbon-to-carbon bonds, e.g. with the aid of H2O2
04
by hydration of carbon-to-carbon double bonds
05
with formation of absorption products in mineral acids and their hydrolysis
08
the acid being phosphoric acid
The present invention relates to a production method for an anhydro sugar alcohol having a markedly reduced ion content and improved colour characteristics, and, more specifically, relates to a method for producing an anhydrous sugar alcohol having a markedly reduced ion content, markedly lowered electrical conductivity and improved colour characteristics, which is obtained by subjecting hydrogenated sugar (sugar alcohol) to a dehydration reaction and thereby converting same to an anhydrous sugar alcohol and then subjecting distilled water, which has been isolated through a distillation step, to a decolourizing process using activated carbon, and subsequently bringing the resulting decolourized substance into contact with an ion exchange resin.

METHOD FOR PREPARING HIGH PURITY ANHYDROSUGAR ALCOHOLS WITH IMPROVED FLOWABILITY OF DISTILLATION RESIDUE
KR03.06.2014
1020140060098SAMYANG GENEX CORPORATION류훈
C07B 63/00
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
B
GENERAL METHODS OF ORGANIC CHEMISTRY; APPARATUS THEREFOR
63
Purification; Separation specially adapted for the purpose of recovering organic compounds; Stabilisation; Use of additives
The present invention relates to a technique for preparing an anhydrosugar alcohol using hydrogenated sugar as a raw material and, more specifically, to a method for preparing an anhydrosugar alcohol by adding an acid to hydrogenated sugar (for example, hexitol) to convert to anhydrosugar alcohol and distilling the resultant solution after the converting reaction by a thin film distiller, to a technique for preparing high purity anhydrosugar alcohols with low costs and high efficiency by improving distillation yield and subsequent purification efficiency, by putting an anti-foaming agent to a distillation residue discharge line during distillation thereby improving flowability of the distillation residues. COPYRIGHT KIPO 2014

MANUFACTURING METHOD FOR HIGH PURITY ANHYDROSUGAR ALCOHOLS BY THIN FILM EVAPORATION
KR20.11.2013
1020120050316SAMYANG GENEX CORPORATIONKYUNG, DO HYUN
C07C 29/80
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
C
ACYCLIC OR CARBOCYCLIC COMPOUNDS
29
Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
74
Separation; Purification; Stabilisation; Use of additives
76
by physical treatment
80
by distillation
The invention relates to a manufacturing method for high purity anhydrosugar alcohols using hydrogenated sugar as raw materials and, more specifically, to a method for manufacturing high purity anhydrosugar alcohols (especially, isosorbide, isomannide, isoidide etc) with a purity of more than 97.5% (preferably, more than 98.5%) and a pH of a distillate of more than 3.7 (preferably, more than 4.0) in a distillation yield of more than 87% (preferably, more than 90%) by adding an acid to hexitol so as to convert the same into anhydrosugar alcohols, and single-stage distilling the converted products by using an internal condenser type thin film evaporator. COPYRIGHT KIPO 2014

Results 1-10 of 1,845 for Criteria:CHEM:(FBPFZTCFMRRESA-UHFFFAOYSA-N) Office(s):all Language:en Stemming: false
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