CAS: 1464-44-4; (2R,3S,4S,5R,6S)-2-(Hydroxymethyl)-6-Phenoxytetrahydro-2H-Pyran-3,4,5-Triol

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📜Phenyl 2,3,4,6-Tetra-O-Benzyl-β-D-Glucopyranoside置于polymer Incarcerated Palladium 氢气体系中,用 四氢呋喃 用作溶剂,化学反应 72.0H,以87%的收率获得苯基-Beta-葡萄糖吡喃糖苷
参考文献:Recoverable,Reusable,Highly Active,And Sulfur-Tolerant Polymer Incarcerated Palladium For Hydrogenation
标题:Recoverable,Reusable,Highly Active,And Sulfur-Tolerant Polymer Incarcerated Palladium For Hydrogenation
摘要:A New Type Of Immobilized Palladium,Pi (Polymer Incarcerated) Pd (2B),From Pd(Pph3)(4) And Copolymer (1B) Has Been Developed. The Excellent Activity Of Pi Pd Has Been Demonstrated In Hydrogenation Of Various Olefins,Benzyl Ethers,And Nitro And Aromatic Compounds. Pi Pd Is Tolerant Under High Pressure And High Temperature And Can Be Recovered And Reused Several Times Without Loss Of Activity Even Under Harsh Conditions. Moreover,Pi Pd Is Highly Resistant To Poisoning By Sulfur.
Doi:10.1021/jo0358527

专利信息

专利号:US-2013004979-A1
优先权日:2010-06-11
标 题 :Glycosyltransferase reversibility for sugar nucleotide synthesis and microscale scanning
发明人：THORSON JON S; GANTT RICHARD W; PELTIER-PAIN PAULINE MARIE JEANNE
权利人:WISCONSIN ALUMNI RES FOUND; THORSON JON S; GANTT RICHARD W; PELTIER-PAIN PAULINE MARIE JEANNE
摘要:The present invention generally relates to materials and methods for exploiting glycosyltransferase reversibility for nucleotide diphosphate (NDP) sugar synthesis. The present invention provides engineered glycosyltransferase enzymes characterized by improved reaction reversibility and expanded sugar donor specificity as compared to corresponding non-mutated glycosyltransferase enzymes. Such reagents provide advantageous routes to NDP sugars for subsequent use in a variety of biomedical applications, including enzymatic and chemo-enzymatic glycorandomization.

专利号:US-10364265-B1
优先权日:2015-12-15
标题:Anhydrosugar synthesis
发明人：CHEN LI; WONG MICHAEL S; ZHANG ZONGCHAO
权利人:WILLIAM MARSH RICE UNIVERISTY; UNIV RICE WILLIAM M
摘要:Improved methods of making anhydrosugars by pyrolysis of a substrate sugar to remove at least one water molecule thereby producing a desired anhydrosugar and side products, the improvement being either 1) protecting one hydroxyl group of the substrate sugar before pyrolysis; or (2) pretreating the substrate sugar with a metal salt and optional acid before pyrolysis, wherein lower amounts of said side products are produced by said improved method.

专利号:US-4341756-A
优先权日:1980-01-31
标 题 :Novel amino-dioxepane intermediates for the synthesis of new non-ionic contrast media
发明人：SOVAK MILOS; RANGANATHAN RAMACHANDRAN
权利人:UNIV CALIFORNIA
摘要:Novel intermediates for non-ionic polyiodo amino-substituted benzenepolyamides having polyol substituents on the amide nitrogens are provided which are 5-amino-6-hydroxy-1,3-dioxepanes. The compounds provide an economic and efficient route to novel contrast media having excellent chemical and physiological properties. n Also provided are methods for preparing the subject compounds.

专利号:US-4439613-A
优先权日:1980-04-17
标 题:Novel amino-dioxepane intermediates for the synthesis of new non-ionic contrast media
发明人：SOVAK MILOS; RANGANATHAN RAMACHANDRAN
权利人:UNIV CALIFORNIA
摘要:Novel intermediates for non-ionic polyiodo amino-substituted benzenepolyamides having polyol substituents on the amide nitrogens are provided which are 5-amino-6-hydroxy-1,3-dioxepanes. The compounds provide an economic and efficient route to novel contrast media having excellent chemical and physiological properties. Also provided are methods for preparing the subject compounds.

专利号:JP-H08333345-A
优先权日:1995-06-02
标题:Synthesis of optically active 1,2,3,4-tetrahydroquinonline-2-acetic acid esters by asymmetric hydrogenation reaction

专利号:WO-2013073659-A1
优先权日:2011-11-17
标题 :Method for producing glycoside having phenol as aglycone thereof
发明人：MOTOKUCHO SUGURU; INOUE TOSHIO
权利人:UNIV NAGASAKI; JX NIPPON OIL & ENERGY CORP
摘要:Provided is a method for producing a glycoside having a phenol as the aglycone thereof, which is a method that: does not require an expensive catalyst or enzyme; does not require following a complex synthesis pathway; is a method for directly producing a glycoside having a phenol as the aglycone thereof from a monosaccharide or a saccharide chain; and is characterized by reacting a monosaccharide or a saccharide chain with a phenol represented by formula (1), while in the presence of supercritical or subcritical carbon dioxide and a lower alcohol. Ar-OH (1) (In formula (1), Ar is one aromatic ring, and may optionally include a substituent.)