CAS: 106-02-5; Oxacyclohexadecan-2-One

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15-Hydroxypentadecanoic Acid Butyl Ester置于titanium(Iv) Isopropylate体系中,70.0~250.0 °C,500.01 Pa 条件下,反应 0.33H,以92.9%的收率获得环十五内酯
参考文献:Method For Producing Cyclic Esters
标题:Method For Producing Cyclic Esters
摘要:该发明涉及一种在至少一种高沸点金属烷氧化物催化剂存在下制备通式(I.A)或(I.B)的环酯的方法.该发明还涉及18-甲基-1-氧代环辛烯二酮的立体异构体及其作为一种气味物质和/或调味物质的用途,含有至少一种18-甲基-1-氧代环辛烯二酮立体异构体和另外一种载体材料的组合物,含有至少一种这些化合物的香精组合物和/或香料物质,以及通过向所述组合物添加至少一种上述化合物赋予气味或味道或改变组合物的气味或味道的方法.

专利信息

专利号:US-5981240-A
优先权日:1996-11-27
标题:Enzyme-catalyzed synthesis of macromolecules in organic solvents
发明人：AKKARA JOSEPH A; BRUNO FERDINANDO F
权利人:US ARMY
摘要:A method is described for a simple, fast and efficient synthesis of homopolymers and copolymers by the enzymatic ring opening polymerization of lactones and lactides. The enzyme used is an ion paired protease. The advantage of this enzymatic system is in using small amount of enzyme per monomer and lower reaction time. Homopolymers and copolymers are synthesized with molecular weights between 1000 and 4600 daltons, and dispersity as low as 1.1. The monomer conversion after 4 days, for reactions catalyzed by protease S, has reached 100%. Different initiators are used to control the rate and degree of polymerization. Synthesis of block copolymers with defined block size and crystallinity are described in this invention. These biodegradable and bioerodable polyesters and copolyesters with controlled molecular weight, dispersity and crystallinity have applications in medical, drug, cosmetic and food industries.

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-5936100-A
优先权日:1996-12-16
标 题:Synthesis of functionalized macrocycles by ring closing metathesis
发明人：FUERSTNER ALOIS; LANGEMANN KLAUS; KINDLER NICOLE
权利人:STUDIENGESELLSCHAFT KOHLE MBH
摘要:The invention concerns an improved process for the preparation of macrocyclic products with 12 or more ring atoms containing one or more polar functional groups on the ring and/or one or more heteroatoms within the ring by ring closing metathesis (RCM) of suitably substituted diene precursors even if the substrates are devoid of any kind of conformational preorganization. Metal carbene complexes of Ru, Mo, W, Re, Os, which are tolerant towards the respective functional group and can either be isolated or prepared in situ are used as catalysts or catalyst precursors. Preferred catalysts or catalyst precursors are ruthenium complexes of the general type XX1LL1Ru=CRR1, wherein X, X1=halogen, L, L1=trialkylphosphine, R, R1=H, Ph, CH=CPh2 denote the most preferred embodiment. The process can be applied to the synthesis of olfactory compounds, perfumary ingredients, pheromones, crown ethers, antibiotics and pharmaceuticals for human and veterinary medicine.

专利号:US-7722904-B2
优先权日:2007-11-01
标 题 :Compositions and methods for stimulating synthesis of pro-collagen or collagen and hyaluronic acid
发明人：SCHNEIDER LOUISE M; PUSATERI DONALD J; LA TOM Q
权利人:ACCESS BUSINESS GROUP INT LLC
摘要:A method for improving the appearance, texture and/or moisture of skin comprising administering a composition comprising Chia Seed oil, Opuntia ficus Indica extract, or both to stimulate collagen or hyaluronic acid synthesis, or decrease Interleukin-1b synthesis, in the skin.

专利号:US-12157795-B2
优先权日:2018-03-09
标题 :Synthesis of Mg(BHT)2(THF)2
发明人：BECKER MATTHEW; KLEINFEHN ALEX P; PETERSEN SHANNON R
权利人:BECKER MATTHEW; KLEINFEHN ALEX P; PETERSEN SHANNON R; UNIV AKRON
摘要:In one or more embodiments, the present invention is directed to a novel method for synthesizing Mg(BHT)2(THF)2 catalyst, which has several advantages over previous methods. Dry toluene or pentane are not required for synthesizing the catalyst, and the reaction is done in a bulk solution of BHT and THF. Further, because the Mg(BHT)2(THF)2 is made in a one-step (“one-potâ€?) synthesis, the time required for synthesizing and drying the catalyst is reduced. Using the new method of the present invention, the Mg(BHT)2(THF)2 is pure after removing excess THF, thereby eliminating the need for washes and recrystallization.

专利号:US-2010055750-A1
优先权日:2008-09-03
标 题:Polyester synthesis
发明人：WOSNICK JORDAN H
权利人:XEROX CORP
摘要:The present disclosure provides for enzymatic polymerization to produce polyester resins suitable for use in manufacturing toners. In embodiments, crystalline copolymers, which are polyesters, may be synthesized from lactones, cyclic anhydrides, cyclic carbonates, and combinations thereof. These crystalline copolymers, in turn, may be utilized in the synthesis of toner particles.