CAS: 601-89-8; 2-Nitrobenzene-1,3-Diol

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CAS号108-46-3 间苯二酚 | CAS号576-26-1 2,6-二甲基苯酚 | CAS号6665-97-0 1,3-二甲氧基-2-硝基苯 | CAS号107-06-2 1,2-二氯乙烷 | CAS号623-11-0 对硝基甲苯 | CAS号88973-12-0 7-hydroxy-2,3-d... | CAS号7664-93-9 硫酸 | CAS号63467-86-7 4,6-dihydroxy-5... | CAS号1460-08-8 2-diazonio-3-ox... | CAS号3163-15-3 2-氨基-1,3-苯二酚 | CAS号82-71-3 2,4,6-三硝基间苯二酚,收敛酸 | CAS号634-60-6 2-氨基间苯二酚盐酸盐 | CAS号6665-97-0 1,3-二甲氧基-2-硝基苯 | CAS号3114-61-2 3-甲氧基-2-硝基苯酚 | CAS号13066-96-1 2,4-Diamino-1,3... | CAS号19037-69-5 7-羟基-4-甲基-8-硝基香豆素 | CAS号16932-44-8 2-碘-1,3-二甲氧基苯 | CAS号2734-70-5 2,6-二甲氧基苯胺

间苯二酚置于硫酸,硝酸体系中,用20 %的收率获得产物2-硝基间苯二酚
参考文献:2-芳基偶氮咪唑在可见光下的光异构化:确定预测工具来预测和调整可能的光开关性能和顺式半衰期
标题:2-芳基偶氮咪唑在可见光下的光异构化:确定预测工具来预测和调整可能的光开关性能和顺式半衰期
摘要:偶氮吡唑是一类新兴的光开关,而类似的基于偶氮咪唑的开关由于其顺式半衰期短,顺反光回复产率差以及有毒的紫外线(uv)光辅助异构化而无法引起太多关注.合成了一系列 24 种芳基取代的n-甲基-2-芳基偶氮咪唑,并从实验和理论上深入研究了它们的光开关性能和顺反异构化动力学.对位-π-供体取代的偶氮咪唑具有高度扭曲的t形顺式构象,显示出几乎完全的双向光开关,而二-O-取代的开关表现出非常长的顺式半衰期(天-年),具有近乎理想的 T 形构象.这项研究展示了芳环中的电子密度如何通过扭转 Nnar 二面角来影响顺式半衰期和顺反光复归,这可以用作预测指标,用于设想和调整任何可能的开关性能和半衰期.给予2-芳基偶氮咪唑.通过应用该工具,设计了两种性能更好的偶氮咪唑光电开关.所有开关均允许紫光(400-405 Nm)和橙光(>585 Nm)照射分别进行正向和反向异构化,并表现出相对较高的量子产率和令人印象深刻的抗光漂白性.
DOI:10.1021/acs.Joc.3C00211

专利信息

专利号:WO-9845231-A1
优先权日:1997-04-09
标题:Supports for solid phase synthesis
发明人：SHAO HUI; CASTELHANO ARLINDO L
权利人:CADUS PHARMACEUTICAL CORP
摘要:Supports for solid-phase synthesis are disclosed. The supports include a phenol or thiophenol linker moiety. A substrate compound can be immobilized to the support through the linker moiety. The supports are suitable for combinatorial synthesis, including synthesis of combinatorial libraries.

专利号:US-6229055-B1
优先权日:1996-04-12
标题 :Synthesis of fluorinated xanthene derivatives
发明人：KLAUBERT DIETER H; GEE KYLE R
权利人:MOLECULAR PROBES INC
摘要:Facile syntheses for fluorinated resorcinol and aminophenol derivatives are provided that yield isomer-free products in good yield. These novel methods use generally available precursors and standard laboratory reagents and equipment to reproducibly produce these synthetically useful reagents in relatively large quantities. The resulting fluorinated resorcinols and aniinophenols possess utility in the preparation of fluorinated fluorescein and rhodol dyes.

专利号:US-2016194279-A1
优先权日:2012-12-09
标 题 :One pot process for the conversion of aroyl chlorides to acyl thioureas
发明人：CHEPURI VENKATA RAMANA; BEERAN SENTHILKUMAR
权利人:COUNCIL SCIENT IND RES
摘要:The present invention disclose an improved one pot process for synthesis of acyl thioureas of formula (I), with yield greater than 80%, from aroyl chlorides of formula (I) wherein, R′ is an aryl or a heteroarylene group substituted with one or more groups selected from hydrogen, alkyl, alkylene, alkynyl, alkoxy, alkenyloxy, halo, hydroxyl, nitro, amino, carboxyl, ester, halogenated hydrocarbon or an aryl or heteroaryl; R″ and R′″ are selected independently from hydrogen, alkyl, alkylene, alkynyl, alkoxy, alkenyloxy, halo, hydroxyl, nitro, amino or halogenated hydrocarbon.

专利号:US-12440831-B2
优先权日:2019-11-11
标 题:Longer-lived ruthenium olefin metathesis catalysts supported by hemi-labile carbene ligands
发明人：SCHRODI YANN; CENA NICOLAS; YOON JOSEPH
权利人:The California State University—Northridge; THE TRUSTEES OF THE CALIFORNIA STATE UNIV
摘要:Contemplated subject matter disclosed herein relates generally to organometallic olefin metathesis catalysts, and more particularly to longer-lived olefin metathesis catalysts supported by hemi-labile carbene ligands that bear an arm with one or more donor ligands, as well as the use of such catalysts in metathesis reactions of olefins and olefin compounds. The contemplated subject matter has utility in the fields of catalysis, organic synthesis, polymer chemistry, and industrial and fine chemicals chemistry. This contemplated subject matter serves to reduce the cost of olefin metathesis (OM) processes including in olefin metathesis polymerizations, conversion of vegetable oils into chemicals, and processes in the petrochemical industry. This contemplated subject matter reduces the cost of OM processes by providing OM catalysts that are longer-lived and lead to higher turnover numbers, hence requiring less catalyst to convert a given amount of substrate(s). Considering that the OM catalyst is the most expensive part of some OM processes, longer-lived OM catalysts have the benefit of reducing the overall cost of the OM processes.

专利号:US-7723498-B2
优先权日:2004-06-04
标题:Directed evolution of recombinant monooxygenase nucleic acids and related polypeptides and methods of use
发明人：WOOD THOMAS K; VARDAR GONUL
权利人:UNIV CONNECTICUT
摘要:The present invention relates to novel monooxygenase nucleic acids and polypeptides created using mutagenesis, DNA shuffling, or both, in a single iteration or multiple iterations, and methods for their creation and use. The monooxygenase enzymes of the present disclosure have particular utility as biocatalysts in industrial chemical redox reactions, such as the oxidation of aromatic hydrocarbons, for example, toluene, benzene, or nitrobenzene, into industrially desirable products. The systems and processes of the present invention are especially useful for the coupled synthesis and recovery of catechols, methylcatechols, resorcinols, methylresorcinols, hydroquinones, methylhydroquinones, hydroxybenzenes, cresols, nitrobenzenes, and nitrohydroxyquinones.

专利号:US-9809678-B2
优先权日:2008-09-08
标 题:Polycarbonate polyol compositions and methods
发明人：ALLEN SCOTT D; COATES GEOFFREY W; CHERIAN ANNA E; SIMONEAU CHRIS A; GRIDNEV ALEXEI A; FARMER JAY J
权利人:NOVOMER INC; SAUDI ARAMCO TECH CO
摘要:In one aspect, the present disclosure encompasses polymerization systems for the copolymerization of CO 2 and epoxides comprising 1) a catalyst including a metal coordination compound having a permanent ligand set and at least one ligand that is a polymerization initiator, and 2) a chain transfer agent having two or more sites that can initiate polymerization. In a second aspect, the present disclosure encompasses methods for the synthesis of polycarbonate polyols using the inventive polymerization systems. In a third aspect, the present disclosure encompasses polycarbonate polyol compositions characterized in that the polymer chains have a high percentage of —OH end groups and a high percentage of carbonate linkages. The compositions are further characterized in that they contain polymer chains having an embedded polyfunctional moiety linked to a plurality of individual polycarbonate chains.