📜丙烯醛二甲缩醛置于palladium On Activated Charcoal 甲酸,三乙胺体系中,化学反应 68.0H,反应生成己醛而甲基乙缩醛 参考文献:Palladium-Catalyzed Triethylammonium Formate Reductions. 4. Reduction Of Acetylenes To Cis-Monoenes And Hydrogenolysis Of Tertiary Allylic Amines 标题:Palladium-Catalyzed Triethylammonium Formate Reductions. 4. Reduction Of Acetylenes To Cis-Monoenes And Hydrogenolysis Of Tertiary Allylic Amines 摘要: Doi:10.1021/jo01312A021
专利号:US-2010099894-A1 优先权日:2006-10-09 标 题 :Method for the Synthesis of Cyclic Acetals by the Reactive Extraction of a Polyol in a Concentrated Solution 发明人:DUBOIS JEAN-LUC; IBORRA CHORNET SARA; VELTY ALEXANDRA I LUCIENNE; CORMA CANOS AVELINO 权利人:DUBOIS JEAN-LUC; IBORRA CHORNET SARA; VELTY ALEXANDRA I LUCIENNE; CORMA CANOS AVELINO 摘要:A method for the synthesis of cyclic acetals comprises reacting at least one carbonyl-function compound selected from aldehydes, ketones, and/or linear acetals, on a polyol in a concentrated aqueous solution exceeding 20 wt % in a reactor containing an acidic catalyst. The carbonyl-function compound is selected so that the cyclic acetal obtained has a water solubility lower than 20000 mg/kg. During the catalytic reaction for the cyclic acetal synthesis, at least one portion of the organic phase containing the cyclic acetal is separated. The acidic catalysis is either homogeneous when using a water-soluble strong acid, or heterogeneous when using a solid acid such as a resin, a zeolite, or any appropriately acidified solid. The extractive reaction method can be used for obtaining high conversions and selectivity.
专利号:US-10308665-B2 优先权日:2015-06-23 标题 :Method for the synthesis of rapamycin derivatives 发明人:ZABUDKIN OLEKSANDR; SCHICKANEDER CHRISTIAN; MATVIIENKO IAROSLAV; SYPCHENKO VOLODYMYR 权利人:SYNBIAS PHARMA AG 摘要:The present invention relates to a method for the production of a rapamycin derivative of formula (I), the method comprising the preparation of a 2-(tri-substituted silyl)oxyethyl triflate by reacting ethylene oxide and a tri-substituted silyl triflate, reaction of the resulting 2-(tri-substituted silyl)oxyethyl triflate with rapamycin in the presence of a molar excess of organic base, and deprotection to obtain the rapamycin derivative of compound (I).
专利号:US-2019010168-A1 优先权日:2015-06-23 标题:Method for the synthesis of rapamycin derivatives
专利号:EP-2076505-A1 优先权日:2006-10-09 标 题 :Method for the synthesis of cyclic acetals by the reactive extraction of a polyol in a concentrated solution
专利号:KR-20180015257-A 优先权日:2015-06-23 标 题 :Method for the synthesis of rapamycin derivatives
专利号:WO-2008043947-A1 优先权日:2006-10-09 标题 :Method for the synthesis of cyclic acetals by the reactive extraction of a polyol in a concentrated solution