专利号:WO-2021019558-A1 优先权日:2019-07-30 标题 :An efficient method for synthesis of 5-(3-pyridyl)-2,2'-bithiophene(sensitizer) 发明人:DATLA ANUPAMA; NAGRE PRASHANT; TAMORE JAGDISH; PRABHU MANOJKUMAR SADANAND; KADAM SACHIN VASANT 权利人:FERMENTA BIOTECH LTD 摘要:The present invention discloses an efficient process for synthesis of photosensitizer, 5-(3-pyridyl)-2,2'-bithiophene in high yield and purity.
专利号:WO-2021019559-A1 优先权日:2019-07-30 标题 :Synthesis of 5-(3-pyridyl)-2,2'-bithiophene(sensitizer) 发明人:DATLA ANUPAMA; NAGRE PRASHANT; TAMORE JAGDISH; PRABHU MANOJKUMAR SADANAND; KADAM SACHIN VASANT 权利人:FERMENTA BIOTECH LTD 摘要:Disclosed herein is a novel simple, short process for synthesis of the photosensitizer, 5-(3-pyridyl)-2,2'-bithiophene.
专利号:EP-0479161-A1 优先权日:1990-10-01 标题:Synthesis of heterocyclic compounds 发明人:PERRY ROBERT JAMES 权利人:EASTMAN KODAK CO 摘要:A new synthetic method is reported in which 2-arylbenz(ox,imid,thi)azoles can be prepared by the palladium catalyzed condensation of aromatic halides with o-amino(phenol, aniline, thiophenol)s followed by dehydrative cyclization. This method is tolerant of a wide variety of functional groups on either aromatic ring and gives good to excellent yields of products.
专利号:WO-2015131100-A1 优先权日:2014-02-28 标题:Ligand-controlled c(sp3)-h arylation and olefination in synthesis of unnatural chiral alpha amino acids 发明人:YU JIN-QUAN 权利人:SCRIPPS RESEARCH INST 摘要:The use of ligands to tune the reactivity and selectivity of transition metal-catalysts for C(-sp3)-H bond functionalization is a central challenge in synthetic organic chemistry. Herein, we report a rare example of catalyst-controlled C(sp3)-H arylation using pyridine and quinoline derivatives: the former promotes exclusive monoarylation, whereas the latter activates the catalyst further to achieve diarylation. Successive application of these ligands enables the sequential diarylation of a methyl group in an alanine derivative with two different aryl iodides, affording a wide range of β-Ar-p-Ar ' -cc-amino acids with excellent levels of diastereoselectivity (d.r. > 20:1). Both configurations of the β-chiral center can be accessed by choosing the order in which the aryl groups are installed. The use of a quinoline derivative as a ligand also enables C(sp3)-H olefination of a protected alanine.
专利号:US-9796641-B2 优先权日:2013-03-22 标 题:Stabilization of radiosynthetic intermediates 发明人:OTABASHI MUHAMMAD; PHILIPPART GAUTHIER; VOCCIA SAMUEL; WOUTERS LUDOVIC; MORELLE JEAN-LUC 权利人:TRASIS S A 摘要:The present invention relates to a method for stabilizing radiosynthetic intermediates used in synthesis of 18 F radiolabeled aromatic amino acid derivatives toward decomposition caused by beta and gamma radiations by the use of radical scavengers and/or reductants and/or antioxidants.
专利号:US-8013157-B2 优先权日:2006-12-20 标题:Synthesis of unsaturated piperidines from piperidones with a silyl reagent 发明人:MANI NEELAKANDHA S; MORRILL CHRISTIE 权利人:JANSSEN PHARMACEUTICA NV 摘要:Syntheses of unsaturated piperidines from piperidones through a silyl piperidine reagent via the Shapiro reaction and palladium-catalyzed cross-coupling reactions with organo halides.
参考标题:Tert- Butyl Iodide Mediated Reductive Fischer Indolization Of Conjugated Hydrazones 作者:Yuta Ito,Masafumi Ueda,Norihiko Takeda,Okiko Miyata |发布日期:2016.2.18 摘要:Available N‐aryl Conjugated Hydrazones With Tert‐butyl Iodide Has Been Developed. In This Reaction, Tert‐butyl Iodide Is Used As Anhydrous Hi Source, And The Generated Hi Acts As A Brønsted Acid And A Reducing Agent. This Operationally Simple Method Allows Access To Various Indole Derivatives. Furthermore, The Procedure Can Be Applied To The Synthesis Of Biologically Active Compounds.
合成参考文献
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