CAS: 151-10-0; 1,3-Dimethoxybenzene

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CAS号91-52-1 2,4-二甲氧基苯甲酸 | CAS号2398-37-0 间溴苯甲醚 | CAS号74-88-4 碘甲烷 | CAS号1466-76-8 2,6-二甲氧基苯甲酸 | CAS号17715-69-4 1-溴-2,4-二甲氧基苯 | CAS号77-78-1 硫酸二甲酯 | CAS号108-46-3 间苯二酚 | CAS号23112-96-1 2,6-二甲氧基苯硼酸 | CAS号121-43-7 硼酸三甲酯 | CAS号59870-68-7 光甘草定 | CAS号4920-84-7 2,4-二甲氧基硝基苯 | CAS号6665-97-0 1,3-二甲氧基-2-硝基苯 | CAS号16147-07-2 1,3-dimethoxy-5... | CAS号18523-14-3 1,3-dimethoxy-2... | CAS号39501-57-0 2,4-dimethoxy-1... | CAS号39151-19-4 3,5-二甲氧基苯乙酮 | CAS号3392-97-0 2,6-二甲氧基苯甲醛 | CAS号2065-27-2 2,6-二甲氧基苯甲酸甲酯 | CAS号3722-51-8 3-羟基-9H-占吨-9-酮

1,2,3-三甲氧基苯置于乙醇,Sodium体系中,化学反应生成间苯二甲醚
参考文献:Succession Rules And Deco Polyominoes
标题:Succession Rules And Deco Polyominoes
摘要:在本文中,我们考察了"deco"多边形的类别以及描述其构造的继承规则.这些多边形根据其导向高度按阶乘数进行枚举.通过改变"阶乘"规则的某些方面,我们得到了描述各种"deco"多边形子类的一些继承规则.通过根据高度和宽度枚举行子类,我们发现以下一些众所周知的数字:第一和第二类斯特林数,纳拉亚纳数以及奇索引斐波那契数.我们希望指出,对原始继承规则所做的改变产生了一些新的继承规则,这些规则生成出超越,代数和有理的生成函数.
Doi:10.1051/ita:2000103

专利信息

专利号:US-11161827-B2
优先权日:2019-04-05
标 题 :Catalytic systems for stereoselective synthesis of chiral amines by enantiodivergent radical C—H amination
发明人：Zhang xiao-xiang; Lang kai
权利人:TRUSTEES BOSTON COLLEGE; THE TRUSTEES OF BOSTON COLLEGE
摘要:In one aspect, the disclosure relates to a mode of asymmetric induction in radical processes based on sequential combination of enantiodifferentiative H-atom abstraction and stereoretentive radical substitution. Also disclosed is an asymmetric system for stereoselective synthesis of strained 5-membered cyclic sulfamides via radical 1,5-C—H amination of sulfamoyl azides. The disclosed metalloradical system can control the degree and sense of asymmetric induction in the catalytic radical C—H amination in a systematic manner. The disclosed system is applicable to a broad scope of substrates with different types of C(sp 3 )—H bonds and exhibits reactivity and selectivity, providing access to both enantiomers of useful 5-membered cyclic sulfamides in a highly enantioenriched form. Also disclosed are catalysts useful in these processes. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present disclosure.

专利号:US-7956011-B2
优先权日:2005-05-04
标题:Materials and methods for the photodirected synthesis of oligonucleotide arrays
发明人：SERAFINOWSKI PAWEL JERZY; GARLAND PETER BRYAN
权利人:CANCER RES INST ROYAL
摘要:Materials and methods for photodirected synthesis of oligonucleotide arrays on a solid substrate by photodirected synthesis are disclosed which employ a film formed from (i) a photoacid generator that on photolysis generates acid that is capable of directly removing the protecting group of the linker molecules or oligonucleotides and (ii) a polymer substantially lacking electronegative heteroatoms that are capable of hydrogen bonding with photogenerated acid. Methods of synthesizing an oligomer arrays are also described that use a film that restricts diffusion of reactants and products on the substrate during synthesis of the array and which includes a precursor of a deprotecting reagent. The method involves removing one or more of the non-required products of the deprotection reaction from the reactive array elements at which they are produced during the reaction, in order to displace the deprotection reaction towards completion.

专利号:US-5145957-A
优先权日:1988-03-18
标 题:Stereoselective synthesis of a chiral cis 3-beta hydrogen (3R) 4-aroyloxy azetidinone
发明人：TSCHAEN DAVID M; LYNCH JOSEPH E; LASWELL WILLIAM L; VOLANTE RALPH P; SHINKAI ICHIRO
权利人:MERCK & CO INC
摘要:A process is described for the stereocontrolled synthesis of (3R,4R)-3-[(1R)-1-hydroxyethyl]-4-benzoyloxyazetidin-2-ones and their derivatives by cycloaddition involving an imine and a ketone, generated from 3(S)-hydroxybutyrate which are useful intermediates in the synthesis of carbapenem antibiotics.

专利号:US-5512701-A
优先权日:1995-06-07
标题:Process for the synthesis of vinyl sulfenic acid derivatives
发明人：HOARD DAVID W; LUKE WAYNE D
权利人:LILLY CO ELI
摘要:The present invention is directed to a new process for the synthesis of vinyl sulfenic acid derivatives. These compounds are useful for the synthesis of benzo[b]thiophenes, in particular 2-aryl-benzo[b]thiophenes.

专利号:US-6022963-A
优先权日:1995-12-15
标 题:Synthesis of oligonucleotide arrays using photocleavable protecting groups
发明人：MCGALL GLENN H; NAM NGO QUOC
权利人:AFFYMETRIX INC
摘要:Novel compounds are provided which are useful as linking groups in chemical synthesis, preferably in the solid phase synthesis of oligonucleotides and polypeptides. These compounds are generally photolabile and comprise protecting groups which can be removed by photolysis to unmask a reactive group. The protecting group has the general formula Ar-C(R1)(R2)-O-C(O)- wherein: Ar is an optionally substituted fused polycyclic aryl or heteroaromatic group or a vinylogous derivative thereof; R1 and R2 are independently H, optionally substituted alkyl, alkenyl or alkynyl, optionally substituted aryl or optionally substituted heteroaromatic, or a vinylogous derivative of the foregoing; and X is a leaving group, a chemical fragment linked to Ar-C(R1)(R2)-O-C(O)- via a heteroatom, or a solid support; provided that when Ar is 1-pyrenyl and R1=R2=H, X is not linked to Ar-C(R1)(R2)-O-C(O)- via a nitrogen atom. Preferred embodiments are those in which Ar is a fused polycyclic aromatic hydrocarbon and in which the substituents on Ar, R1 and R2 are electron donating groups. A particularly preferred protecting group is the 'PYMOC' protecting group, pyrenylmethyloxycarbonyl, where Ar=pyrenyl and R1=R2=H. Also provided is a method of forming, from component molecules, a plurality of compounds on a support, each compound occupying a separate predefined region of the support, using the protected compounds described above.

专利号:EP-0269236-B1
优先权日:1986-10-24
标题:Process for synthesis of a chiral azetidinone
摘要:A process is described for the stereo-controlled synthesis of 3-(R)-3-[1'-(R)-hydroxyethyl]-4-(R)-benzoyl-2-oxo-1-aze tidines and their derivatives which are useful intermediates in the synthesis of carbapenem antibiotics.