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CAS号3303-55-7 L-苯丙氨酰-L-亮氨酸 | CAS号4856-97-7 2-羟甲基苯并咪唑 | CAS号6275-81-6 Benzo [4,5] sam... | CAS号490-59-5 Alloxazine | CAS号1792-40-1 2-甲基-5-硝基苯并咪唑 | CAS号193696-66-1 N-(1H-benzimida... | CAS号51-17-2 苯并咪唑 | CAS号716-79-0 2-苯基苯并咪唑 | CAS号2479-64-3 1H-1,3,2-Benzod... | CAS号2963-66-8 2-(2-羟基苯基)-1H-苯并咪唑

📜2-硝基苯胺 在 盐酸,三氯化钛体系中,用 水作为反应溶剂,反应 2.0H,以64%的收率获得o-Phenylenediamine DihydroChloride
参考文献:电合成二氨基苯中电子负载催化剂还原二硝基苯
标题:电合成二氨基苯中电子负载催化剂还原二硝基苯
摘要:已经研究了异构二硝基苯 (Dnb) 与氯化钛 (III),锡 (II) 和氯化钒 (II) 的相互作用,这些氯化物是在二氨基苯的电合成中用作电子载体的还原剂.测量了 Sncl2 和 Ticl3 在 2 M Hcl 水-醇溶液(10 Vol.% C2H5Oh)中还原异构 Dnb 和硝基苯羟胺的速率常数,并确定了异构 Dnb 还原的活化能.在 Sncl2 < Ticl3 < Vcl2 系列中,Dnb 与所列介质的相互作用速率增加.结果表明,在这些介质过量的情况下电解 Dnb 可以获得相应的二氨基苯,产率为 60-90%.
Doi:10.1007/S11172-021-3298-9

专利信息

专利号:US-6531591-B1
优先权日:1999-07-07
标 题 :Synthesis of stable quinone and photoreactive ketone phosphoramidite reagents for solid phase synthesis of photoreactive-oligomer conjugates
发明人：FENSHOLDT JEF
权利人:EXIQON AS
摘要:Quinone phosphoramidite reagents as well as photoreactive ketone phosphoramidite reagents, such as anthraquinone phosphoramidite reagents and benzophenone phosphoramidite reagents were synthesized and used for the solid phase synthesis of photoreactive-oligonucleotide conjugates. These phosphoramidite reagents are stable, suitable for large-scale synthesis and designed for automated solid phase synthesis of oligomers terminating in a photoreactive moiety.

专利号:EP-1202998-B1
优先权日:1999-07-07
标 题 :Synthesis of stable quinone and photoreactive ketone phosphoramidite reagents for solid phase synthesis of photoreactive-oligomer conjugates
发明人：FENSHOLDT JEF
权利人:EXIQON AS
摘要:Quinone phosphoramidite reagents as well as photoreactive ketone phosphoramidite reagents, such as anthraquinone phosphoramidite reagents and benzophenone phosphoramidite reagents were synthesized and used for the solid phase synthesis of photoreactive-oligonucleotide conjugates. These phosphoramidite reagents are stable, suitable for large-scale synthesis and designed for automated solid phase synthesis of oligomers terminating in a photoreactive moiety.

专利号:US-5925762-A
优先权日:1996-09-17
标 题:Practical synthesis of urea derivatives
发明人：THAVONEKHAM BOUNKHAM
权利人:BOEHRINGER INGELHEIM CA LTD
摘要:A very mild and efficient approach for the synthesis of ureas is described. Phenyl carbamates were used as intermediates for the preparation of N,N'- substituted ureas. The carbamates were treated with an approximate stoichiometric amount of amine in dimethyl sulfoxide at ambient temperature, generating the ureas in high yield. The reaction was simple, safe, fast, inexpensive, and amenable to large scale production of the product.

专利号:US-7652172-B2
优先权日:2004-09-20
标题:Expeditious synthesis of DPD
发明人：SEMMELHACK MARTIN F; CAMPAGNA SHAWN R; BASSLER BONNIE L; FEDERLE MICHAEL J
权利人:UNIV PRINCETON
摘要:This invention provides a practical synthesis route for 4,5-dihydroxypentane-2,3-dione (DPD), an unstable small molecule which is proposed to be the source of universal signaling agents for quorum sensing in bacteria. The synthesis route includes new intermediates and allows preparation of isotopically-labeled DPD and ent-DPD. The method provides sufficient quantities of DPD for study of spontaneous binding of borate to DPD, the signal for the marine bacteria V. harveyi.

专利号:US-8178474-B1
优先权日:1999-04-21
标题 :Functionalised solid support for alpha-oxoaldehyde synthesis
发明人：MELNYK OLEG; FRUCHART JEAN-SEBASTIEN; BOUREL LINE; GRAS-MASSE HELENE
权利人:MELNYK OLEG; FRUCHART JEAN-SEBASTIEN; BOUREL LINE; GRAS-MASSE HELENE; PASTEUR INSTITUT; CENTRE NAT RECH SCIENT
摘要:The invention relates to a functionalised solid support for the synthesis of compounds comprising at least one α-oxoaldehyde function, to a process for preparing it and to its applications, in particular for the preparation of a library of organic compounds, of a diagnostic reagent, of a microtitration plate and of a biochip, such as a DNA chip. The present invention also relates to a process for the synthesis of organic compounds comprising at least one α-oxoaldehyde function and to the α-oxoaldehyde peptides obtained using this process.

专利号:US-5565552-A
优先权日:1992-01-21
标题:Method of expanded porphyrin-oligonucleotide conjugate synthesis
发明人：MAGDA DARREN; SESSLER JONATHAN L; IVERSON BRENT L; SANSOM PETRA I; CROFTS SHAUN P
权利人:UNIV TEXAS; PHARMACYCLICS INC
摘要:The invention is directed to a method of incorporating expanded porphyrins, and particularly of incorporating a sapphyrin or a texaphyrin, before, during, or after chemical synthesis of an oligomer to form an expanded porphyrin-oligonucleotide conjugate, and particularly a sapphyrin- or texaphyrin-oligonucleotide conjugate. This method includes reacting derivatized nucleotides and a sapphyrin or a texaphyrin in a desired order in an automated or manual DNA synthesizer having a solid support to form a sapphyrin- or a texaphyrin-oligonucleotide conjugate.