CAS: 539-82-2; Ethyl Valerate

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CAS号539-88-8 乙酰丙酸乙酯 | CAS号64-17-5 乙醇 | CAS号111-26-2 正己胺 | CAS号201230-82-2 carbon monoxide | CAS号109-73-9 正丁胺 | CAS号109-52-4 正戊酸 | CAS号542-69-8 碘代正丁烷 | CAS号719-80-2 二苯基乙氧基膦 | CAS号2163-48-6 丙基丙二酸二乙酯 | CAS号110-62-3 正戊醛 | CAS号10556-91-9 4,4,4-三氟-2-丙基-3... | CAS号4398-65-6 2-氯-2-甲基己烷 | CAS号14570-43-5 2-propylindene-... | CAS号597-93-3 三丁基甲醇 | CAS号502-56-7 5-壬酮 | CAS号540-08-9 9-十七酮 | CAS号30692-16-1 5-tridecanone | CAS号1942-48-9 undecane-5,7-dione | CAS号71-41-0 正戊醇 | CAS号64-17-5 乙醇

正戊酸置于0.08%-So3H Functionalized-Benzylated Al-Sba-15 Nanoporous Catalyst体系中,化学反应 2.0H,以95%的收率获得产物戊酸乙酯
参考文献:在磺化苄基化的纳米多孔al-Sba-15催化剂上将丙戊酸液相酯化成乙酰丙酸乙酯.
标题:在磺化苄基化的纳米多孔al-Sba-15催化剂上将丙戊酸液相酯化成乙酰丙酸乙酯.
摘要:增值化学品,燃料和燃料添加剂可从廉价的生物物质如乙酰丙酸中获得.戊酸是戊糖和己糖的脱水和水解产物.本工作涉及磺化苄基化的al-Sba-15,[so 3 H-Bz-Al-Sba-15]的合成,通过各种分析技术(例如xrd,Bet,Ft-Ir,Tga,Dta,Fe-Sem / Eds和hr-Tem / Edx技术以及在轻度和非腐蚀性条件下对乙酰丙酸酯化为乙酰丙酸乙酯的催化活性的评估.苯甲基芳环的磺化反应以不同的量进行,以得到纳米多孔的x%so 3 H-Bz-Al-Sba-15催化剂,其中(x = 0.02,0.04,0.06,0.08和0.10%w / W).其中0.08%的so 3 H-Bz-Al-Sba-15催化剂显示出最高的乙酰丙酸转化率(100%)和对乙酰丙酸乙酯的最高选择性(100%).乙酰丙酸的酯化反应已用不同的伯醇进行,所有这些醇均对乙酰丙酸烷基酯具有100%的选择性.然而,发现
DOI:10.1166/jnn.2019.16637

专利信息

专利号:EP-0309324-B1
优先权日:1987-09-17
标 题:Process for the preparation of n-alkylated amino acids and their esters, use in the synthesis of carboxyalkyl dipeptides
摘要:Process for industrial synthesis of the derivative of formula (I): and their addition salts with an inorganic or organic acid or base, in which: R1 is linear or branched lower alkyl (of 1 to 6 carbon atoms), R2 is hydrogen or a linear or branched lower alkyl group (of 1 to 4 carbon atoms). Application to the industrial synthesis of carboxyalkyl dipeptides.

专利号:US-9994508-B2
优先权日:2012-12-11
标 题:Versatile and functionalised intermediates for the synthesis of vitamin D and novel vitamin D derivatives
发明人：LOPEZ PEREZ BORJA; SIGUEIRO PONTE RITA; MAESTRO SAAVEDRA MIGUEL A; MOURINO MOSQUERA ANTONIO
权利人:ENDOTHERM GMBH
摘要:Novel intermediates for the complete synthesis of vitamin D are provided that allow a great versatility of functional groups in the final vitamin derivatives. Vitamin derivatives that are epimeric in position 3 and vitamin derivatives with a wide range of functionalities in position 18, including compounds with isotopic labelling are provided.

专利号:WO-2017033128-A1
优先权日:2015-08-25
标题 :Biphenyl-substitued 4-amino-butyric acid derivatives and their use in the synthesis of nep inhibitors
发明人：HOOK DAVID; KU JIE; ZHOU JIANGUANG
权利人:NOVARTIS AG; HOOK DAVID; KU JIE; ZHOU JIANGUANG
摘要:The invention relates to a novel process, novel process steps and novel intermediates useful in the synthesis of pharmaceutically active compounds, in particular neutral endopeptidase (NEP) inhibitors and prodrugs thereof.

专利号:US-8105809-B2
优先权日:2008-07-03
标题 :Enzymatic synthesis of acetoacetate esters and derivatives
发明人：HENDERSON SAMUEL T
权利人:HENDERSON SAMUEL T; ACCERA INC
摘要:In one embodiment, the present invention includes a method for the synthesis of an ester derivative of acetoacetate. The method includes providing a first ester of acetoacetate and providing an alcohol. The method further includes combining the first ester of acetoacetate and the alcohol in the presence of an enzyme capable of transesterification in a non-aqueous solvent to form the ester derivative of acetoacetate. The method results in the formation of the ester derivative of acetoacetate, which, in one embodiment, is monoacetoacetin.

专利号:US-3887490-A
优先权日:1970-08-27
标 题 :Process for regenerating noble metal catalyst for the synthesis of hydrogen peroxide according to the anthraquinone process
发明人：SCHREYER GERD; THEISSEN FERDINAND; WEIBERG OTTO; WEIGERT WOLFGANG
权利人:DEGUSSA
摘要:In situ regeneration of noble metal catalysts for the synthesis of hydrogen peroxide by the anthraquinone process is provided by employing as the working solution coming from the extraction or desorption step and being introduced into the hydrogenation step a solution which contains at least 250 mg/liter of hydrogen peroxide, to thereby completely regenerate the noble metal catalyst by full capacity of the hydrogenation step.

专利号:US-6051711-A
优先权日:1997-10-24
标 题 :Synthesis of swainsonine salts
发明人：TROPPER FRANCOIS; SHAH RAJAN N; SHARMA PRADEEP
权利人:GLYCODESIGN INC
摘要:A method for synthesizing swainsonine salts and intermediates thereof comprising subjecting a compound of the formula I wherein R2 and R2' are the same or different and represent alkyl, halogen, alkenyl, alkoxy, cycloalkyl or aryl which may be substituted, to acid hydrolysis in the presence of a C1-4 alkanol to obtain a crystalline salt of swainsonine; and optionally, recrystallizing the swainsonine salt from a C1-4 alkanol. The reaction may be used in combination with one or more additional reaction steps.