CAS: 701-34-8; 4-Bromobenzenesulfonamide

上下游产品

CAS号98-58-8 对溴苯磺酰氯 | CAS号93281-65-3 4-溴-N-(叔丁基)苯磺酰胺 | CAS号1984-27-6 4-溴-N-异丙基苯磺酰胺 | CAS号90944-62-0 N,N-二乙基-4-溴苯磺酰胺 | CAS号6647-76-3 Benzenesulfonyl... | CAS号71106-34-8 1-[(tert-butyld... | CAS号108-86-1 溴苯 | CAS号7018-74-8 4-bromobenzenes... | CAS号108966-49-0 4-(2-hydroxyeth... | CAS号108966-54-7 4-(5-hydroxypen... | CAS号108966-48-9 4-(2-hydroxyeth... | CAS号108966-55-8 4-(3-hydroxypro... | CAS号351003-59-3 4-溴-2-氯苯磺酰胺 | CAS号3609-87-8 N-苄基-4-溴苯磺酰胺 | CAS号1836-19-7 Benzenesulfonam... | CAS号1984-28-7 N-丁基-4-溴苯磺酰胺 | CAS号1984-27-6 4-溴-N-异丙基苯磺酰胺 | CAS号703-12-8 N-甲基-4-溴苯磺酰胺

磺胺置于三氯溴甲烷,Sodium Nitrite,溶剂黄146体系中,用 水,乙腈 作为反应溶剂,化学反应 24.08H,以27%的收率获得产物4-溴苯磺酰胺
参考文献:一锅,无金属地将苯胺转化为芳基溴化物和碘化物
标题:一锅,无金属地将苯胺转化为芳基溴化物和碘化物
摘要:描述了通过从溴代三氯甲烷和二碘代甲烷中提取卤素从苯胺无金属合成芳基溴化物和碘化物.该一锅法反应以中等至优异的收率从相应的苯胺提供了卤代芳基卤化物,而没有分离出重氮盐.该转化反应时间短,后处理简单,对湿气和空气不敏感,并且避免了过多的卤化.dft计算支持s Rn 1机制.此方法代表了经典sandmeyer反应的一种方便替代方法.
DOI:10.1021/acs.Orglett.7B00771

专利信息

专利号:US-6573387-B1
优先权日:1997-03-21
标 题 :Synthesis of α,β-substituted amino amides, esters, and acids
发明人：SHARPLESS K BARRY; RUBIN A ERIK
权利人:SCRIPPS RESEARCH INST
摘要:α,β-Unsaturated amides and esters are converted to α,β-substituted amino amides, esters, and acids. An α,βunsaturated amide or ester is first converted to an α,β-hydroxysulfonamide or hydroxycarbamate amide or ester using an osmium-catalyzed aminohydroxylation. The α,β-hydroxysulfonamide or hydroxycarbamate amides or esters is then cyclodehydrated to produce a α,β-N-sulfonyl- or the α,β-N-carbamoylaziridine amide or ester. The ring of aziridine intermediate is then nucleophilically opened in a regioselective manner with a variety of nucleophiles to give the $g(α,β-substituted amino- amides or esters. Preferred nucleophiles include sulfur, oxygen, carbon, and nitrogen nucleophiles.

专利号:US-7385064-B1
优先权日:2005-11-30
标题 :Catalysts for use in enantioselective synthesis
发明人：DAVIES HUW M L; REDDY RAVISEKHARA P
权利人:UNIV NEW YORK STATE RES FOUND
摘要:Disclosed are compounds having the following formula: n nin which Z 11 is selected from a substituted or unsubstituted saturated adamantyl or other polycyclic group and a substituted or unsubstituted branched acyclic group containing at least 5 carbon atoms at least one of which is a tertiary carbon; and in which Z 12 is a cyclic imide. Methods of using these compounds as chiral catalysts for carbenoid reactions and for enantioselective C—H aminations are also described.

专利号:US-7576245-B2
优先权日:2002-07-11
标题:Fluorous tagging and scavenging reactants and methods of synthesis and use thereof
发明人：ZHANG WEI; LUO ZHIYONG
权利人:FLUOROUS TECHNOLOGIES INC
摘要:The present invention includes methods and compositions for increasing the fluorous nature of an organic compound by reacting it with at least one fluorous compound to produce a fluorous tagged organic compound. The increased fluorous nature of the fluorous tagged organic compound can then be utilized to separate the fluorous organic compound from untagged reagents, reactants, catalysts and/or products derived therefrom. The resultant fluorous tagged organic compound can be subjected to subsequent chemical transformations, wherein the fluorous nature of the tagged compound is utilized to increase the ease of separation of the fluorous tagged organic compound from untagged reagents, reactants, catalysts and/or products derived therefrom, after each chemical transformation. The chemical transformations result in a second fluorous tagged organic compound wherein the fluorous nature of the second fluorous tagged organic compound can then be reduced by removing the fluorous group therefrom, thereby producing a second organic compound that may be employed as a pharmaceutical compound or intermediate, or a combinatorial library component.

专利号:WO-9842657-A1
优先权日:1997-03-21
标 题:SYNTHESIS OF α,β-SUBSTITUTED AMINO AMIDES, ESTERS AND ACIDS

专利号:CN-108409612-A
优先权日:2018-03-21
标题:A kind of method that catalyzes the synthesis of N-benzylbenzenesulfonamides by boric acid/oxalic acid catalytic system under microwave radiation

专利号:CN-108997177-A
优先权日:2018-09-04
标题 :A kind of microwave-promoted method for the synthesis of N-benzenesulfonylnitroaniline compounds