专利号:US-7652164-B2 优先权日:2005-09-13 标题:Process for the direct synthesis of trialkoxysilane 发明人:LEWIS KENRICK M; MEREIGH ABELLARD T; O'YOUNG CHI-LIN; CAMERON RUDOLPH A 权利人:MOMENTIVE PERFORMANCE MAT INC 摘要:The Direct Synthesis of trialkoxysilane is carried out by conducting the Direct Synthesis reaction of silicon and alcohol, optionally in solvent, in the presence of a catalytically effective amount of Direct Synthesis catalyst and an effective catalyst-promoting amount of Direct Synthesis catalyst promoter, said promoter being an organic or inorganic compound possessing at least one phosphorus-oxygen bond.
专利号:US-11479577-B2 优先权日:2016-05-18 标题:Intermediates for the synthesis of bile acid derivatives, in particular of obeticholic acid 发明人:WEYMOUTH-WILSON ALEXANDER; KOMSTA ZOFIA; WALLIS LAURA; EVANS TIMOTHY; DAVIES IEUAN; OTTER CARL; BATCHELOR RHYS 权利人:NZP UK LTD 摘要:The present invention relates to compounds which are intermediates in the synthesis of bile acid derivatives with pharmacological activity. The invention relates to compounds of general formula (I):wherein:, R1, R2, R3, R4, R5, R6 and Y are as defined herein.The compounds are intermediates in the synthesis of synthetic bile acids which are useful in the treatment of conditions such as liver disease. In addition, the invention relates to a method of synthesizing these intermediates and a method of preparing obeticholic acid and obeticholic acid analogues from the compounds of the invention.
专利号:US-4125735-A 优先权日:1975-03-20 标 题 :Synthesis of esters of acetylenic alcohols 发明人:CLOSE RALPH E; OROSHNIK WILLIAM 权利人:SCM CORP 摘要:A process for the synthesis of perfume products, Vitamin E and intermediates described herein involving a coupling reaction. For instance, a process for the synthesis of dehydrophytol and Vitamin E comprising forming a C15 acetylene from hexahydropseudoionone and then coupling said acetylene with 1-acetoxy-4-chloro-3-methylbut-2-ene to form a C20 acetoxy-enyne. The latter is readily subjected to partial hydrogenation and saponification in that order to form a dehydrophytol, a useful intermediate for the synthesis of Vitamin E and other products.
专利号:US-6323357-B1 优先权日:2000-04-06 标 题:Process for the direct synthesis of organochlorosilanes using recovered CuCl catalyst 发明人:KALCHAUER WILFRIED; STRAUSSBERGER HERBERT; STRECKEL WILLIBALD; GOETZE ULRICH 权利人:WACKER CHEMIE GMBH 摘要:A process for the direct synthesis of organochlorosilanes using CuCl prepared from the copper-containing residues from the direct synthesis of organochlorosilanes, where, in the preparation of the CuCl, in a first step, copper from an aqueous suspension of the copper-containing residues is oxidized to CuCl2 using mineral acid and oxidant, where mineral acid or oxidant or mineral acid and oxidant contain chlorine, giving an aqueous CuCl2 solution, and in a second step, the aqueous CuCl2 solution is reduced to CuCl using elemental iron.
专利号:US-11434211-B2 优先权日:2020-06-16 标题:Synthesis of 5-nitrotetrazole 发明人:PIERCEY DAVIN GLENN; MANSHIP TIMOTHY D; SMITH DAWSON MICHAEL 权利人:PURDUE RESEARCH FOUNDATION 摘要:This disclosure shows the ability of a readily-available oxidizer to achieve oxidation of 5-amino-1H-tetrazole (5-AT) to 5-nitrotetrazole (5-NT) in high yields in a single pot synthesis. This strategy reduces the synthesis of this important energetic material down to a single step and eliminates highly sensitive diazonium and copper salt primary explosive intermediates. The overall yield of this process is 48-53% and the resultant aqueous solution of product effectively used for the preparation of nitrotetrazole-containing primary explosive DBX-1. Unlike current methods of nitrotetrazole preparation, the novel method is entirely solution-based and prepares a final solution of sodium nitrotetrazolate, never once needing to handle energetic intermediates or products, making it a much safer method of nitrotetrazole preparation.
专利号:US-10053406-B2 优先权日:2015-10-23 标题 :Synthesis of honokiol 发明人:JARACZ STANISLAV; KOZLOWSKI MARISA; EUN LEE YOUNG; KIM SUN MIN 权利人:COLGATE PALMOLIVE CO; UNIV PENNSYLVANIA 摘要:Disclosed herein are improved methods for the synthesis of honokiol, as well as methods for the synthesis of 3,3′-di-tert-butyl-5,5′-dimethyl-[1,1′-biphenyl]-2,4′-diol, 3′,5-dimethyl-[1,1′-biphenyl]-2,4′-diol, and 2,4′-dimethoxy-3′,5-dimethyl-1,1′-biphenyl, 3,3′,5,5′-tetra-tert-butyl-[1,1′-biphenyl]-2,4′-diol, and certain tetrasubstituted bisphenols, and uses therefor.
[参考文献]: Ganesan Bharathiraja, Et Al. Expedient Synthesis Of Tetrasubstituted Pyrroles Via A Copper-Catalyzed Cascade Inter-/intramolecular Cyclization Of 1,3-Enynes Carry A Nitro Group With Amines. Org Biomol Chem. 2015 Mar 7;13(9):2786-92. [参考文献]: Mariano D Susman, Et Al. Ph-Dependent Galvanic Replacement Of Supported And Colloidal Cu2O Nanocrystals With Gold And Palladium. Small. 2015 Aug 26;11(32):3942-53. [参考文献]: Michela Puddu, Et Al. Silica Microcapsules For Long-Term, Robust, And Reliable Room Temperature Rna Preservation. Adv Healthc Mater. 2015 Jun 24;4(9):1332-8. [参考文献]: Milena E Miska, Et Al. Stable Chlorine Isotope Analysis Of Chlorinated Acetic Acids Using Gas Chromatography/quadrupole Mass Spectrometry. Rapid Commun Mass Spectrom. 2015 Dec 30;29(24):2341-8. [参考文献]: Nail Altunay, Et Al. A New Ultrasonic-Assisted Cloud-Point-Extraction Procedure For Pre-Concentration And Determination Of Ultra-Trace Levels Of Copper In Selected Beverages And Foods By Flame Atomic Absorption Spectrometry. Food Addit Contam Part A Chem Anal Control Expo Risk Assess. 2015;32(9):1475-87.