CAS: 2050-94-4; Dipentyl Carbonate

相似化合物

7523-15-1 1680-31-5 542-52-9

上下游产品

CAS号71-41-0 正戊醇 | CAS号534-17-8 碳酸铯 | CAS号110-53-2 1-溴戊烷 | CAS号584-08-7 碳酸钾 | CAS号57-13-6 尿素 | CAS号124-38-9 二氧化碳 | CAS号616-38-6 碳酸二甲酯 | CAS号594-42-3 全氯甲硫醇 | CAS号628-17-1 1-碘戊烷 | CAS号638-41-5 氯甲酸戊酯 | CAS号102-09-0 碳酸二苯酯 | CAS号71-41-0 正戊醇

📜原甲酸三戊酯置于二叔丁基过氧化物体系中,用 苯 用作溶剂,化学反应生成碳酸二戊酯
参考文献:Gizatullina,S. R.; Jakupov,I. S.; Germac,A. V.,Journal Fur Praktische Chemie (Leipzig 1954),1990,Vol. 332,# 3,P. 375-380
标题:Gizatullina,S. R.; Jakupov,I. S.; Germac,A. V.,Journal Fur Praktische Chemie (Leipzig 1954),1990,Vol. 332,# 3,P. 375-380

专利信息

专利号:US-6395894-B2
优先权日:1998-04-16
标 题 :Process for the synthesis of carbapenem intermidiates, and compounds produced
发明人：PYE PHILIP J; REIDER PAUL J; ROSSEN KAI; VOLANTE RALPH P
摘要:A process of synthesizing a compound of structural formula 6is disclosed wherein R1 represents H or a suitable protecting group for an alcohol; R2 represents a benzyl, C1-6 alkyl or aryl; Y represents C1-3 alkyl, O, NH or S; X represents O, NH, or S and R5 represents a carboxy protecting group, comprising reacting a compound of formula 5:wherein R1, R2, R5, X and Y are as previously described with a phosphite or phosphonite reagent to produce a compound of formula 6. Further disclosed is an efficient method for the synthesis of a compound of formula 2:which comprises reacting a 4-acyl-2-azetidinone with a titanium, zirconium or hafnium enolate of a 1-hydroxy-2-butanone derivative.

专利号:WO-2014059961-A1
优先权日:2012-10-15
标 题 :Method for the synchronous absorption of carbon dioxide from flue gas and synthesis of dialkyl carbonates and alkylene carbonates
发明人：BÃœTTNER HERMANN; Müller Jürgen; JONKER RAPHAEL; DOEDT SEBASTIAN; BOSSE TOBIAS; MAKRAN SEBASTIAN
权利人:BÃœTTNER HERMANN
摘要:The invention relates to a synchronous CCU method (carbon dioxide capture and utilisation) for the absorption of carbon dioxide from flue gas and other CO 2 -containing substance sources and simultaneous synthesis of dialkyl carbonates and alkylene carbonates. The general subject matter of the invention is, in terms of a 'carbon dioxide capture' on the one hand, the absorption of CO 2 from flue gas and other CO 2 -containing substance sources with ammonia and/or amines to form ammonium carbamates or ammonium hydrogen carbonates or ureas or urea intermediates and, in terms of a 'carbon dioxide utilisation' on the other hand, the reaction of ammonium carbamates or ammonium hydrogen carbonates or ureas or urea intermediates with aliphatic, alicyclic or unsaturated alcohols, and including unsaturated aromatic alcohols to give dialkyl carbonates or alkylene carbonates in such a form that the CO 2 n absorption agent is re-released and fed back into the repetitive process again. A repetitive process control is extremely energy and CO 2 n efficient.

专利号:US-7193077-B2
优先权日:2003-08-30
标 题 :Exocyclic amine triaryl methyl protecting groups in two-step polynucleotide synthesis
发明人：DELLINGER DOUGLAS J; SIERZCHALA AGNIESZKA B; CARUTHERS MARVIN H
权利人:AGILENT TECHNOLOGIES INC
摘要:Precursors for use in the synthesis of polynucleotides and methods of using the precursors in synthesizing polynucleotides are disclosed. The precursors include a heterocyclic base having an exocyclic amine group and a substituted or unsubstituted triaryl methyl protecting group bound to the exocyclic amine group.

专利号:US-7427679-B2
优先权日:2003-08-30
标 题:Precursors for two-step polynucleotide synthesis
发明人：DELLINGER DOUGLAS J; SIERZCHALA AGNIESZKA B; CARUTHERS MARVIN H
权利人:AGILENT TECHNOLOGIES INC
摘要:Precursors for use in the synthesis of polynucleotides are disclosed. The precursors include a heterocyclic base having an exocyclic amine group and a substituted or unsubstituted triaryl methyl protecting group bound to the exocyclic amine group. In particular embodiments, the precursor has the structure: n nwherein:n O and H represent oxygen and hydrogen, respectively, R 1 is hydrido, hydroxyl, protected hydroxyl, lower alkyl, modified lower alkyl, or alkoxy, one of R 2 or R 3 is a hydroxyl protecting group; and the other of R 2 or R 3 is a reactive group capable of reacting with a reactive site hydroxyl, Base is a heterocyclic base having an exocyclic amine group, and Tram is a triaryl methyl group having the structure (V) n nwherein the broken line represents a bond to the amino nitrogen of the exocyclic amine group, and R 4 , R 5 and R 6 are independently selected from unsubstituted or substituted aryl groups, provided that at least one of R 4 , R 5 , and R 6 is an aryl group other than phenyl and other than substituted phenyl.

专利号:US-8309706-B2
优先权日:1998-08-03
标 题 :Methods of synthesizing oligonucleotides using carbonate protecting groups and alpha-effect nucleophile deprotection
发明人：DELLINGER DOUGLAS J; CARUTHERS MARVIN H; BETLEY JASON R
权利人:DELLINGER DOUGLAS J; CARUTHERS MARVIN H; BETLEY JASON R; AGILENT TECHNOLOGIES INC
摘要:The invention provides methods for synthesizing oligonucleotides using nucleoside monomers having carbonate protected hydroxyl groups that are deprotected with α-effect nucleophiles. The α-effect nucleophile irreversibly cleave the carbonate protecting groups while simultaneously oxidizing the internucleotide phosphite triester linkage to a phosphodiester linkage. The procedure may be carried out in aqueous solution at neutral to mildly basic pH. The method eliminates the need for separate deprotection and oxidation steps, and, since the use of acid to remove protecting groups is unnecessary, acid-induced depurination is avoided. Fluorescent or other readily detectable carbonate protecting groups can be used, enabling monitoring of individual reaction steps during oligonucleotide synthesis. The invention is particularly useful in the highly parallel, microscale synthesis of oligonucleotides.

专利号:US-5847149-A
优先权日:1994-01-27
标 题 :Thiadiazole derivatives, process for their preparation, and their use as precursors for the production of liquid crystals
发明人：FUSS ROBERT WALTER; MANERO JAVIER; SCHLOSSER HUBERT; WINGEN RAINER
权利人:HOECHST AG
摘要:Thiadiazole derivatives of the formula (I) n n X-B-A.sup.1 -(M.sup.1 -A.sup.2 -).sub.m (M.sup.2 -A.sup.3).sub.n -R.sup.1(I n n ) n in which the symbols and indices have the following meanings: n X is Cl, Br or I; n B is 1,3,4-thiadiazole-2,5-diyl; n A 1 , A 2 and A 3 are identical or different and are substituted or unsubstituted 1,4-phenylene, pyrazine-2,5-diyl, pyridazine-3,6-diyl, pyridine-2,5-diyl, pyrimidine-2,5-diyl, trans-1,4-cyclohexylene, 1,3,4-thiadiazole-2,5-diyl, 1,3-dioxane-2,5-diyl, 1,3-dithiane-2,5-diyl, 1,3-thiazole-2,4-diyl, 1,3-thiazole-2,5-diyl, thiophene-2,4-diyl, thiophene-2,5-diyl, piperazine-1,4-diyl, piperazine-2,5-diyl, naphthalene-2,6-diyl, bicyclo 2.2.2!octane-1,4-diyl, or 1,3-dioxaborinane-2,5-diyl; n M 1 and M 2 are identical or different and are --CO--O--, --O--CO--, --O--CO--O--, --O--CS--O--, --CH 2 --O--, --O--CH 2 --, --CHâ•?CH--, --C.tbd.C-- or a single bond; n R 1 is --O-benzyl, H, an alkyl group having 1 to 12 carbon atoms or an alkoxy group having 1 to 12 carbon atoms; n m and n are 0 or 1. n The novel compounds allow the synthesis of a wide range of 1,3,4-thiadiazole derivatives, as employed, for example, as components of liquid-crystal mixtures, in a significantly reduced number of synthesis stes.