CAS: 4437-51-8; 3,4-Hexanedione

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3-己炔-2,5-二醇置于aluminum Oxide,氢氧化钾,Tetrafluoroboric Acid,18-冠醚-6,镍体系中,用 乙醚,二氯甲烷,氯仿,N,N-二甲基甲酰胺 作为反应溶剂,化学反应 39.0H,反应生成 3,4-己二酮
参考文献:对称的炔烃与噻吩和苯氧ox啶阳离子自由基盐的加合物.氧化铝上cumulenes的结构和形成导致α-二酮,α-羟基炔烃和α-乙酰氨基炔烃
标题:对称的炔烃与噻吩和苯氧ox啶阳离子自由基盐的加合物.氧化铝上cumulenes的结构和形成导致α-二酮,α-羟基炔烃和α-乙酰氨基炔烃
摘要:噻蒽阳离子自由基四氟硼酸盐(th • + Bf 4-)加入到2-丁炔,3-己炔,4-辛炔,和5-癸炔在mecn以形成反式bisadducts R(钍+)c C(钍+)r,其中r = Me,Et,Pr,Bu(7A-D).吩噻阳离子自由基四氟硼酸盐(po • + Bf 4-)同样加入到最后三个炔以形成加合物r(po +)c C(po +)r,8B-D.未发现环状一加合物.7和8的反式结构用x射线晶体学(7C)和NMR光谱推导.当将加合物在chcl 3和mecn中的溶液沉积在活化的氧化铝上时,噻吩(th)和苯氧噻啶(po)的消除几乎是定量的.对(7B-D)的详细研究表明,通过消除th形成了异丙苯(15),随后将15转化为少量其他产物.在chcl 3中,这些产物分别是炔,5-氧噻吩,α-二酮(11),α-羟基炔(12)和氢.相同的产物在mecn中与α-乙酰氨基炔烃(13).通过2
DOI:10.1021/jo050198B

专利信息

专利号:WO-2010045764-A1
优先权日:2008-10-23
标题:Process for the synthesis of substituted pyrazoles
发明人：WONG HEILAM; HANSELMANN PAUL; WENGER WOLFGANG
权利人:LONZA AG; LONZA GUANGZHOU R & D CT LTD; WONG HEILAM; HANSELMANN PAUL; WENGER WOLFGANG
摘要:A process for the preparation of 4,5-di- and 2,4,5-trisubstituted pyrazole 3-carboxylates from 3-acyloxirane-2-carboxylates and hydrazine compounds.

专利号:US-10160710-B2
优先权日:2017-09-20
标 题 :Synthesis method of 3,4-hexanedione
发明人：HE LEI; YUN SHAN; HONG KUN; GUO TAN; ZHU XIUFANG; ZHANG JIADONG; LI HUAJU; WANG CHAOYU; CHEN JING; XU YING
权利人:HUAIYIN INST TECHNOLOGY
摘要:A synthesis method of 3,4-hexanedione comprises a step of 4-hydroxy-3-hexanonen oxidation, and in the step of 4-hydroxy-3-hexanonen oxidation, water is used as a catalyst, acetic acid is used as a cocatalyst, and ozone is used as an oxidizing agent to carry out an oxidation reaction on 4-hydroxy-3-hexanonen, and after the reaction, distillation under reduced pressure is carried out to obtain the 3,4-hexanedione. According to the synthesis method of 3,4-hexanedione in the invention, in the process of 4-hydroxy-3-hexanone oxidation, the 4-hydroxy-3-hexanone is placed in the water, the ozone is used for oxidation on the 4-hydroxy-3-hexanone, and the acetic acid is used as the cocatalyst, so that the entire oxidation reaction process is mild in conditions and simple to operate, no sewage is produced when the final product (3,4-hexanedione) is obtained, and the yield is greatly increased.

专利号:US-2011269201-A1
优先权日:2010-04-30
标题:Redirected bioenergetics in recombinant cellulolytic clostridium microorganisms
发明人：GRAY KEVIN; O'MULLAN PATRICK
权利人:QTEROS INC
摘要:Compositions and methods are provided for redirecting metabolic solventogenesis pathways to enhance the product yield from fermentation of biomass. Clostridium microorganism pathways are modified to extend the growth phase and prevent inhibition of acetaldehyde while bypassing the synthesis of acetyl CoA.

专利号:US-7977269-B2
优先权日:2005-07-21
标 题:Diimine metal complexes, methods of synthesis, and methods of using in oligomerization and polymerization
发明人：SMALL BROOKE L; CARNEY MICHAEL
权利人:CHEVRON PHILLIPS CHEMICAL CO
摘要:Novel α-diimine metal complexes, particularly iron complexes, having a phenyl sulfidyl or substituted phenyl sulfidyl metal complexing group are disclosed. The α-diimine metal complexes having a phenyl sulfidyl or substituted phenyl sulfidyl metal complexing group are produced by forming one of the α-diimine metal complex imine bonds in the presence of a metal salt or an α-acylimine metal complex. The α-diimine metal complexes having phenyl sulfidyl or substituted phenyl sulfidyl metal complexing group are useful for polymerizing or oligomerizing olefins.

专利号:US-7728161-B2
优先权日:2005-07-21
标题:Diimine metal complexes, methods of synthesis, and methods of using in oligomerization and polymerization
发明人：SMALL BROOKE L; CARNEY MICHAEL
权利人:CHEVRON PHILLIPS CHEMICAL CO
摘要:Methods for making α-diimine metal complexes are described. The methods comprise forming an α-diimine metal complex imine bond in the presence of a metal salt or an α-acylimine metal complex. The method is particularly using for the production of α-diimine metal complexes having two different α-diimine nitrogen groups. The α-diimine metal complexes are useful for polymerizing or oligomerizing olefins.

专利号:US-7728160-B2
优先权日:2005-07-21
标 题 :Diimine metal complexes, methods of synthesis, and methods of using in oligomerization and polymerization
发明人：SMALL BROOKE L; CARNEY MICHAEL
权利人:CHEVRON PHILLIPS CHEMICAL CO
摘要:Novel α-diimine metal complexes, particularly iron complexes are disclosed. The α-diimine metal complexes are produced by forming one of the α-diimine metal complex imine bonds in the presence of a metal salt or an α-acylimine metal complex. α-diimine metal complexes having two different α-diimine nitrogen groups may be produced. The α-diimine metal complexes are useful for polymerizing or oligomerizing olefins.