CAS: 617-57-2; 2-((2-Hydroxypropanoyl)Oxy)Propanoic Acid

乳酸 反应 2.0H,反应生成 2-羟基丙酸-1-羰乙酯
参考文献:一种呋喃二甲酰-聚羟基酸酯增塑剂及其应用
标题:一种呋喃二甲酰-聚羟基酸酯增塑剂及其应用
摘要:本发明公开了一种呋喃二甲酰‑聚羟基酸酯增塑剂及其应用.该呋喃二甲酰‑聚羟基酸酯增塑剂由三部分组成:呋喃二甲酸部分,由羟基酸低聚化形成的聚酯部分和末端封端醇部分.该增塑剂可以应用在聚合物增塑方面,特别在pvc中表现出非常好的相容性和增塑效率.同时,该增塑剂所需原料来源均可来源于生物质,具有较好的可再生性.

专利信息

专利号:US-2011263720-A1
优先权日:2010-03-09
标 题 :Synthesis of alpha-tocopherolquinone derivatives, and methods of using the same
发明人：PAISLEY STEVEN D; LEPREE JASON M; HAWI AMALE; ECKHOFF MICHAEL
权利人:PENWEST PHARMACEUTICALS CO
摘要:The present invention is directed to a method of synthesizing a compound of Formula I: n n n n n n n n n n the method comprising oxidizing alpha-tocopherol with a metal salt oxidizing agent to form the compound of Formula I, wherein the stoichiometric ratio (mol/mol) of metal salt oxidizing agent/alpha-tocopherol is 1.6 to 4. The invention is also directed to a method of synthesizing a compound of Formula I, the method comprising (a) hydrolyzing alpha-tocopheryl acetate in the presence of a base; (b) neutralizing the hydrolyzing of (a), thereby forming alpha-tocopherol; and (c) oxidizing the alpha-tocopherol of (b) with a metal salt oxidizing agent to form the compound of Formula I, wherein the stoichiometric ratio (mol/mol) of metal salt oxidizing agent/alpha-tocopherol is 1.6 to 4.

专利号:US-8895760-B2
优先权日:2010-02-26
标 题 :Process for the preparation of L-lactide of high chemical yield and optical purity
发明人：IDAGE BHASKAR BHAIRAVNATH; IDAGE SUSHEELA BHASKAR; SWAMINATHAN SIVARAM
权利人:IDAGE BHASKAR BHAIRAVNATH; IDAGE SUSHEELA BHASKAR; SWAMINATHAN SIVARAM; COUNCIL SCIENT IND RES
摘要:A process for the synthesis of 100% optically pure L(+)-lactide catalyzed by zinc and tin metal catalysts of less than 150 micron particle size is disclosed. The L-lactide obtained was further purified to obtain lactide of 100% optical purity and acid impurities less than 10 meq/kg.

专利号:US-2011269201-A1
优先权日:2010-04-30
标题:Redirected bioenergetics in recombinant cellulolytic clostridium microorganisms
发明人：GRAY KEVIN; O'MULLAN PATRICK
权利人:QTEROS INC
摘要:Compositions and methods are provided for redirecting metabolic solventogenesis pathways to enhance the product yield from fermentation of biomass. Clostridium microorganism pathways are modified to extend the growth phase and prevent inhibition of acetaldehyde while bypassing the synthesis of acetyl CoA.

专利号:WO-2011112679-A1
优先权日:2010-03-09
标题 :Synthesis of alpha-tocopherolquinone derivatives, and methods of using the same

专利号:WO-2013160485-A1
优先权日:2012-04-28
标 题 :Process for continuous preparation of lactide directly from concentrated lactic acid
发明人：HOELDERLICH WOLFGANG; VENSCHOTT MORITZ
权利人:UHDE INVENTA FISCHER GMBH
摘要:The subject-matter of the present invention relates to a process for the continuous, heterogeneously catalysed, direct preparation of L-lactide from concentrated lactic acid. The aim is to circumvent the process steps of the known prepolymerization and subsequent depolymerization, and to reduce them to one synthesis step. Furthermore, the by-products and the racemization are minimized, and so high-purity L-lactide is prepared.

专利号:WO-9846763-A1
优先权日:1997-04-11
标题:Methods and compositions for synthesis of long chain polyunsaturated fatty acids