CAS: 3068-88-0; 4-Methyloxetan-2-One

📜1,3-丁二醇置于铂体系中,用 Neat (No Solvent) 作为反应溶剂,180.0 °C,101.33 Kpa 条件下,反应 36.0H,以75%的收率获得产物β-丁内酯
参考文献:Acceptorless Dehydrogenative Lactonization Of Diols By Pt-Loaded Sno2 Catalysts
标题:Acceptorless Dehydrogenative Lactonization Of Diols By Pt-Loaded Sno2 Catalysts
摘要:Sno2载体上的铂(pt/sno2)在无溶剂条件下有效催化了苯基和脂肪二醇的无受体脱氢内酯化反应,反应介质为n2.
DOI:10.1039/c5Ra03337C

专利信息

专利号:WO-2023152730-A1
优先权日:2022-02-14
标题 :Amine-borane adducts in the synthesis of polyester and its copolymers using cyclic esters and compositions thereof
发明人：FENG XIAOSHUANG; LIU JINGJING; GNANOU YVES
权利人:UNIV KING ABDULLAH SCI & TECH
摘要:Embodiments of the present disclosure provide for the process of synthesis of polyester and its copolymers through (co)polymerization of cyclic esters and with other oxygenated monomers using amine-borane adduct. Embodiments of the present disclosure further describe the controlled anionic ring-opening polymerization of the cyclic compounds. Embodiments of the present disclosure also describe the polymerization of cyclic compounds using the synergistic effect of amines and thioureas. Embodiments of the present disclosure also describe compositions of polymers formed by the said process.

专利号:US-9499643-B2
优先权日:2010-01-08
标题 :Method for preparing carbene in solution, novel stable form of carbene obtained in particular by means of said method, and uses thereof in catalysis
发明人：MALIVERNEY CHRISTIAN; SAINT-JALMES LAURENT; GOJON SOPHIE; KATO TSUYOSHI; BACEIREDO ANTOINE J
权利人:MALIVERNEY CHRISTIAN; SAINT-JALMES LAURENT; GOJON SOPHIE; KATO TSUYOSHI; BACEIREDO ANTOINE J; BLUESTAR SILICONES FRANCE; CENTRE NAT RECH SCIENT
摘要:The invention relates to a method for preparing carbene by means of deprotonation of a precursor salt using a strong base. A purpose of the invention is to enhance the synthesis of carbenes, i.e. to simplify same, to make said synthesis more economical and to obtain a liquid or solid, stable and pure form constituting a catalytic system that is easy to store and use and that has a higher efficiency, higher yield and higher selectivity than carbene catalysts of the prior art. In order to do so, the method comprises deprotonation in a solvent including an alcohol. The invention also relates to an alcohol-containing solution and carbene, and to a solid that can be obtained from the solution, e.g. by means of sublimation.

专利号:US-7923226-B2
优先权日:2003-10-01
标题 :Synthesis of 1,2,4-butanetriol enantiomers from carbohydrates
发明人：FROST JOHN W
权利人:UNIV MICHIGAN STATE
摘要:A bioengineered synthesis scheme for the production of L-1,2,4-butanetriol, D-1,2,4-butanetriol and racemic mixtures thereof from a carbon source is provided. Methods of producing L-1,2,4-butanetriol, D-1,2,4-butanetriol and racemic mixtures thereof are also provided. Methods are also provided for converting D-1,2,4-butanetriol and L-1,2,4,-butanetriol to D,L-1,2,4-butanetriol trinitrate.

专利号:US-2011165641-A1
优先权日:2006-03-31
标 题 :Synthesis of 1,2,4-Butanetriol Enantiomers from Carbohydrates
发明人：FROST JOHN W
权利人:UNIV MICHIGAN STATE
摘要:A bioengineered synthesis scheme for the production of L-1,2,4-butanetriol, D-1,2,4-butanetriol and racemic mixtures thereof from a carbon source is provided. Methods of producing L-1,2,4-butanetriol, D-1,2,4-butanetriol and racemic mixtures thereof are also provided. Methods are also provided for converting D-1,2,4-butanetriol and L-1,2,4,-butanetriol to D,L-1,2,4-butanetriol trinitrate.

专利号:US-11807600-B2
优先权日:2021-11-12
标题 :Synthesis of novel ketone body analogs for use as a nutritional supplement
发明人：ROZZONI SAMUEL J; SAUER DARYL R
权利人:ROZZONI SAMUEL J; SAUER DARYL R
摘要:When a healthy and balanced diet is not achieved, nutritional supplements are used to help deal with the resulting health issues and enhance the body's performance. The present invention relates to a novel category of molecules that combine the properties of both ketone bodies and β-Hydroxy β-Methylbutyrate (HMB) that can be used as supplements for treating a wide range of health-related issues. Acetoacetate and β-Hydroxybutrate along with isopentyldiol were used as the sources of ketone bodies and HMB, respectively. The present invention provides a method of synthesis for a new group of compounds that incorporate the properties found in acetoacetate and 3-hydroxybutyrate molecules with that of β-hydroxy β-methylbutyrate.

专利号:US-9512250-B2
优先权日:2012-02-23
标 题 :Manganese catalyzed photopolymerization of fluorinated monomers
发明人：ASANDEI ALEXANDRU D
权利人:UNIV CONNECTICUT
摘要:The disclosure discloses initiating systems for the radical polymerization of alkenes, and especially fluorine substituted alkenes. The polymerization is catalyzed by a metal carbonyl, preferably manganese carbonyl. The polymerization is initiated directly from alkyl halides at room temperature under visible white light. The polymers also allow the synthesis of block copolymers. The process comprises polymerizing at least one alkene monomer in the presence of a halide radical initiator, carbonyl catalyst and a solvent, under reaction conditions and for a time sufficient to polymerize the at least one alkene monomer to form a polymer. The present disclosure provides a method for living polymerization of alkene monomers which provides a high level of macromolecular control over the polymerization process and which leads to uniform and controllable polymeric products. This disclosure also provides a method for activating any halide (Cl, Br, I) chain ends of such polymers for the synthesis of block copolymerizations.