CAS: 143-24-8; 2,5,8,11,14-Pentaoxapentadecane

相似化合物

23783-42-8 112-60-7 112-49-2

上下游产品

1,11-dichloro-3,6,9-trioxaundecane sodium methylate 2-(2-methoxyethoxy)ethyl alcohol 3-oxa-1,5-dichloropentaneF-tetraethylene glycol dimethyl ether methanol methoxyethene 2-methoxyethyl vinyl ether

在 一氯化碘体系中,用 苯 用作溶剂,化学反应生成四乙二醇二甲醚
参考文献:Muravlyanskii,D. V.; Gur'Yanova,E. N.; Romm,I. P.,Journal Of General Chemistry Of The Ussr,1986,Vol. 56,# 6,P. 1147-1150
标题:Muravlyanskii,D. V.; Gur'Yanova,E. N.; Romm,I. P.,Journal Of General Chemistry Of The Ussr,1986,Vol. 56,# 6,P. 1147-1150

专利信息

专利号:US-8084007-B2
优先权日:2004-01-30
标题 :Methods of synthesis of isotropically enriched borohydride and methods of synthesis of isotropically enriched boranes
发明人：SPIELVOGEL BERNARD; COOK KEVIN S
权利人:SPIELVOGEL BERNARD; COOK KEVIN S; SEMEQUIP INC
摘要:The invention provides new methods for the synthesis of isotopically enriched metal borohydrides, metal tetrahydroundecaborate salts, and decaborane from isotopically enriched 10 B-boric acid or 11 B-boric acid. The invention is particularly useful for synthesis of isotopically enriched sodium or lithium borohydride, MB 11 H 14 (where M is Li, Na, K, or alkylammonium), and decaborane.

专利号:US-4347379-A
优先权日:1980-03-10
标 题:Synthesis of alpha-alkoxycarboxylic acids
发明人：LAI JOHN T
权利人:GOODRICH CO B F
摘要:Numerous alpha-carboxylic acids are prepared in a liquid medium by the reaction of an organic compound having at least one reactive hydroxyl or thiol group, with a monoketone, and a haloform, in the presence of a phase transfer catalyst and an alkali metal hydroxide. The term 'alpha-alkoxycarboxylic acids' includes alpha-phenoxycarboxylic acids, alpha-thioalkoxycarboxylic acids and alpha-thiophenoxycarboxylic acids. Specific substituents on the beta carbon atom of an alpha-alkoxycarboxylic (or '2-alkoxycarboxylic') acid reaction product formed in this novel synthesis, are introduced by appropriate choice of the ketone reactant; alkoxy and phenoxy substituents on the alpha carbon atom of a 2-alkoxycarboxylic acid are introduced by appropriate choice of the organic compound having a hydroxyl or thiol group. De-alkoxylation of the 2-alkoxycarboxylic acid yields alpha-beta monoolefinically unsaturated carboxylic acids which are necessarily alpha substituted, and may also be beta-substituted. It is now possible to produce, simply and conveniently, numerous substituted alpha-beta monolefinically unsaturated carboxylic acids with a variety of substituents on the alpha carbon atom, and, optionally on the beta carbon atom of these substituted carboxylic acids. Esters may also be conventionally derived from both the 2-alkoxycarboxylic acids, and the unsaturated carboxylic acids. During the phase transfer catalyzed synthesis of this invention, an intermediate acyl halide derivative is formed prior to the formation of the 2-alkoxycarboxylic acid reaction product. The formation of the acyl halide derivative allows the subsequent direct formation, in a modification of the same reaction, of 2-alkoxycarboxylic acid amides (or '2-alkoxycarbamides'), simply by adding a primary or secondary amine to the reaction mass. By dealkoxylation of the 2-alkoxycarbamides, specific, necessarily alpha-substituted and optionally beta-substituted acrylamides are synthesized which previously could be prepared, if at all, only with difficulty.

专利号:US-4794199-A
优先权日:1984-07-05
标题:Process for synthesis of primary amines from olefins, syngas and ammonia
发明人：LIN JIANG-JEN; KNIFTON JOHN F
权利人:TEXACO INC
摘要:This invention concerns the synthesis of primary amines from olefins, synthesis gas and ammonia via an amination process in the presence of a cobalt catalyst, an ether solvent and a tertiary group VB donor ligand.

专利号:US-2023287032-A1
优先权日:2020-08-14
标 题:Synthesis of fluorinated nucleotides
发明人：CHUNG CHEOL KEUN; LIU ZHIJIAN; MALIGRES PETER E; MAO EDNA; OBLIGACION JENNIFER V; PHILLIPS ERIC M; PIRNOT MICHAEL; POIRIER MARC; SONG ZHIGUO JAKE; WANG TAO
权利人:CHUNG CHEOL KEUN; LIU ZHIJIAN; MALIGRES PETER E; MAO EDNA; OBLIGACION JENNIFER V; PHILLIPS ERIC M; PIRNOT MICHAEL; POIRIER MARC; SONG ZHIGUO JAKE; WANG TAO; MERCK SHARP & DOHME LLC
摘要:The present invention relates to efficient processes useful in the preparation of fluorinated nucleosides, such as (O—{[(2R,3R,4S,5R)-5-(6-amino-9H-purin-9-yl)-4-fluoro-3-hydroxyoxolan-2-yl]methyl}O,O-dihydrogen phosphorothioate, also known as 2′-(S)-fluoro-thio-adenosine monophosphate or 2′-F-thio-AMP. Such fluorinated nucleosides may be useful as a biologically active compound and or as an intermediate for the synthesis of more complex biologically active compounds. The present invention also encompasses intermediates useful in the disclosed synthetic processes and the methods of their preparation.

专利号:US-4140708-A
优先权日:1975-10-16
标 题 :Asymmetric synthesis of optically active prostaglandins
发明人：CHADHA NARESH K; PARTRIDGE JR JOHN J; USKOKOVIC MILAN R
权利人:HOFFMANN LA ROCHE
摘要:An asymmetric synthesis of optically active prostaglandin F 2 α from cyclopentadiene including intermediates in this synthesis.

专利号:US-3933892-A
优先权日:1973-02-12
标题 :Asymmetric synthesis of optically active prostaglandins
发明人：CHADHA NARESH KUMAR; PARTRIDGE JR JOHN JOSEPH; USKOKOVIC MILAN RADOJE
权利人:HOFFMANN LA ROCHE
摘要:An asymmetric synthesis of optically active prostaglandin F 2 .sub.α from cyclopentadiene including intermediates in this synthesis.