专利号:US-4544789-A 优先权日:1983-09-06 标题:Stereoselective synthesis of internal olefins 发明人:BROWN THEODORE L; NUBEL PHILIP O 权利人:UNIV ILLINOIS 摘要:Regioselective and stereoselective synthesis of trans-internal olefins is effected with transition metal catalyst complexes having pairs of associated active sites. Photolytic conditions are generally employed.
专利号:US-2013184465-A1 优先权日:2010-09-30 标 题:Process for the synthesis of thio-triazolo-group containing compounds 发明人:DOCHNAHL MAXIMILIAN; KEIL MICHAEL; GEBHARDT JOACHIM; VOGELBACHER UWE JOSEF; RACK MICHAEL 权利人:DOCHNAHL MAXIMILIAN; KEIL MICHAEL; GEBHARDT JOACHIM; VOGELBACHER UWE JOSEF; RACK MICHAEL; BASF SE 摘要:The present invention relates to a process using specific magnesium reagents for providing thio-triazolo group-containing compounds and for the synthesis of precursors therefor. The invention furthermore relates to intermediates and to their preparation.
专利号:US-11976081-B2 优先权日:2019-04-26 标题 :Intermediate of eribulin and synthesis method and use thereof 发明人:XU WEIPING 权利人:BEIJING TIENYI LUFU PHARMATECH CO LTD 摘要:An intermediate compound is prepared and used for the synthesis of halichondrin B, eribulin or an analog thereof, particularly a structural fragment C27-C35 thereof. The starting materials of the synthetic route are readily available, and the optical purity of the starting materials can be ensured, so that the optical purity of the structural fragment C27-C35 in halichondrin B, eribulin or the analog thereof is ensured. Steps for constructing a chiral center of the structural fragment C27-C35 feature higher diastereoselectivity and yield, in particular preparation methods of compounds of formulae (X), (XI), (XVI) and (XV). By-products of partial reactions can be removed only by recrystallization, which results in easy purification and significant reduce in cost.
专利号:US-10669160-B2 优先权日:2018-04-30 标题:Heterogeneous wet synthesis process for preparation of high purity tungsten pentahalide 发明人:LIU YUMIN; LI FENG; WAN ZHIWEN; FAFARD CLAUDIA; WIESE STEFAN; HUSSON GUILLAUME; NIKIFOROV GRIGORY; SUI BIN; GIRARD JEAN-MARC 权利人:AIR LIQUIDE; AIR LIQUIDE AMERICAN 摘要:Synthesis of tungsten pentahalide compositions having low impurity profiles are disclosed. The specific impurity profile permits deposition of high purity tungsten-containing films using vapor deposition processes or other semiconductor manufacturing processes without introduction of performance-impacting contaminants.
专利号:US-4426542-A 优先权日:1981-04-22 标题 :Synthesis of plasticizer and detergent alcohols 发明人:BARKER GEORGE E; FORSTER DENIS 权利人:MONSANTO CO 摘要:A preparation of a plasticizer alcohol, consisting of predominantly 2-propylheptanol, from linear butenes is described in which oxo product of the butenes is aldoled to condense n-pentaldehyde therein with very little cross-aldolization followed by hydrogenation to obtain the 2-propylheptanol with very small 2-propyl-4-methyl hexanol content. The alcohol product as phthalate ester has excellent plasticizer properties. Also processes are described for converting other olefins to alcohols by oxo, aldol and hydrogenation reactions, with particular attention to converting hexenes obtained by propylene dimerization to C14 alcohols suitable for preparation of detergents.
专利号:US-8551237-B2 优先权日:2007-12-10 标 题 :Synthesis of colorants in mixing apparatus 发明人:LOEBEL JOHANNES 权利人:LOEBEL JOHANNES; BASF SE 摘要:A process for preparing colorants of the general formula (Ia), (Ib) or (Ic) n nor mixtures thereof, comprises reactingn (a) tetracarboxylic acids or their functional derivatives with (b) at least one compound selected fromn i. aliphatic amines, ii. aromatic amines, iii. aliphatic diamines, iv. aromatic diamines, n (c) optionally in the presence of further additives, (d) optionally in the presence of wetting agentsn nin a mixing apparatus. These colorants are useful for coloration of macromolecular organic and inorganic materials of natural and synthetic origin.
摘要:Kostikov, R. R.; Khlebnikov, A. F.; Sokolov, V. V., Science of Synthesis, (2010) 47, 816. 摘要:Kostikov, R. R.; Khlebnikov, A. F.; Sokolov, V. V., Science of Synthesis, (2010) 47, 841. 摘要:Kostikov, R. R.; Khlebnikov, A. F.; Sokolov, V. V., Science of Synthesis, (2010) 47, 795. 摘要:Aitken, R. A.; Aitken, K. M., Science of Synthesis, (2010) 47, 1020. 摘要:Roy, K.-M., Science of Synthesis, (2010) 47, 897.