CAS: 5343-92-0; 1,2-Pentanediol

相似化合物

41014-93-1 108340-61-0 29117-54-2

上下游产品

CAS号617-31-2 2-羟基戊酸 | CAS号98-00-0 糠醇 | CAS号109-67-1 1-戊烯 | CAS号64502-89-2 1-Hydroxy-2-pen... | CAS号5699-72-9 2-hydroxyvalero... | CAS号136185-61-0 (2S*,3R*)-3-Iod... | CAS号9004-34-6 微晶纤维素 | CAS号98-01-1 糠醛 | CAS号97-99-4 四氢糠醇 | CAS号1003-14-1 丙基环氧乙烷 | CAS号6032-29-7 仲戊醇 | CAS号71-41-0 正戊醇 | CAS号110-62-3 正戊醛 | CAS号165108-64-5 4-propyl-1,3,2-... | CAS号107-92-6 正丁酸 | CAS号29117-54-2 (S)-1,2-戊二醇 | CAS号7332-93-6 2-oxopentanal | CAS号81516-60-1 Quinoxaline, 2-... | CAS号831-93-6 1-phenylmethoxy... | CAS号617-31-2 2-羟基戊酸

2-羟基戊酸甲酯置于氢气体系中,225.0 °C,10.0 Mpa 条件下,以99.4%的收率获得产物1,2-戊二醇
参考文献:一种1,2-戊二醇的制备方法
标题:一种1,2-戊二醇的制备方法
摘要:本发明提供了一种1,2‑戊二醇制备方法,具体包括以下步骤:(1)将2‑羟基戊腈和甲醇混合均匀后,加入无机酸催化剂,升温至55~75°C,保温反应12~24H,反应生成2‑羟基戊酸甲酯;(2)将加氢催化剂‑合金催化剂填装在氢化反应器内,反应器内温度维持在165~225°C,氢气压力维持在10~14Mpa,从下端进入氢化反应器,将步骤(1)所得2‑羟基戊酸甲酯从下端加入氢化反应器,氢化反应的产物从氢化反应器的顶端流出,流出物经冷凝器冷却至60oc后,转入蒸馏釜,于160oc蒸馏,主馏分即为1,2‑戊二醇.本发明所制1,2‑戊二醇组分稳定,纯度高,收率高.

专利信息

专利号:US-6939962-B2
优先权日:2000-07-31
标题:Method for the synthesis of sucrose-6-esters
发明人：CLARK JASON D; LEMAY JR RICHARD R
权利人:TATE & LYLE PLC
摘要:There is described a process for the synthesis of a sucrose-6-ester comprising: (a) reacting a mixture comprising sucrose and a polar aprotic solvent with an organotin-based acylation promoter, while adding a solvent capable of removing water by co-distillation, and removing water by co-distillation, to afford a first reaction mixture which is substantially free from water, followed by (b) adding a carboxylic anhydride to said first reaction mixture to afford a second reaction mixture, and maintaining said second reaction mixture at a temperature and for a period of time sufficient to produce a sucrose-6-ester, characterised in that step (a) is performed at a temperature of from 85 to 125° C. and at a pressure of from 20 to 80 kPa. In the most preferred embodiment, the polar aprotic solvent is DMF, the solvent capable of removing water by co-distillation is cyclohexane, the organotion-based acylation promoter is a 1,3-diacyloxy-1,1,3,3-tetrabutyldistannoxane, and step (a) is performed at approximately 97° C., and approximately 50 kpa, until the weight ratio of tin to water in the first reaction mixture is greater than about 26, when the tin content is measured by X-Ray Fluoresence Analyzer, and the water content is measured by the Karl-Fischer method.

专利号:US-2023151394-A1
优先权日:2020-03-31
标题 :Biologic synthesis of diols from amino acids
发明人：ZENG AN-PING; LIU YONGFEI
权利人:TAIZHOU SIMPLU TECH CO LTD
摘要:A method for the enzymatically catalyzed synthesis of a diol from an amino acid includes enzymatically hydroxylating the amino acid, enzymatically deaminating the amino acid, the deamination resulting in the formation of an oxo group at the position of the amino group, enzymatically decarboxylating the amino acid, and enzymatically hydrogenating the oxo group resulting from the deamination reaction.

专利号:US-7592392-B2
优先权日:2003-04-04
标 题 :Synthesis of functional polymers for use in organic synthesis and combinatorial chemistry
发明人：LINDSLEY CRAIG W; WISNOSKI DAVID D
权利人:MERCK & CO INC
摘要:The present invention relates to a novel process for the preparation of solid-supported scavenging reagents and solid-supported functional polymers. The invention further relates to novel solid-supported functional polymers and to their use in organic synthesis and combinatorial chemistry.

专利号:US-2012094919-A1
优先权日:2009-03-16
标题 :Use of tripeptides
发明人：GRAEUB REMO; HEIDL MARC; IMFELD DOMINIK; MUELLER EIKE; WIKSTROEM PETER; ZIEGLER HUGO
权利人:GRAEUB REMO; HEIDL MARC; IMFELD DOMINIK; MUELLER EIKE; WIKSTROEM PETER; ZIEGLER HUGO
摘要:The present invention relates to the use of tripeptide derivatives for tightening, firming and/or moisturizing skin. Furthermore, the invention relates to a method for stimulating the synthesis of glycosaminoglycans containing a D-glucosamine and/or N-acetyl-D-glucosamine residue and/or proteoglycans by fibroblasts and/or keratinocytes such as in particular the synthesis of Hyaluronic acid and/or of the proteoglycans Decorin and/or Lumican.

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:WO-2024130393-A1
优先权日:2022-12-21
标 题 :Nanoparticle and method of synthesis thereof
发明人：MOSKOVCHENKO SVITLANA
权利人:MOSKOVCHENKO SVITLANA
摘要:The present technology relates to nanoparticles, compositions comprising said nanoparticles, and methods of synthesis of said nanoparticles; wherein the nanoparticles comprise a metal nanoparticle core, a first coating of amphiphilic molecules, and a second coating of essential oil, essential oil primary constituent, or both, which combine the antimicrobial properties of metal nanoparticles, amphiphilic molecules, and essential oil or essential oil primary constituents.