CAS: 13269-52-8; Trans-3-Hexene

上下游产品

methyl magnesium iodide diethyl ether (E)-1,4-dibromobutene 1,4-dichloro-2-butenemeso-3,4-dibromo-hexanemeso-3,4-dibromo-hexane (+/-)-3,4-dibromohexane meso-3,4-Dichlor-hexanmeso-3,4-Dichlor-hexan trans-1,2-diethylcyclopropane

📜Meso-3,4-Dibromo-Hexane置于di-N-Hexyl Telluride体系中,用 氘代氯仿 用作溶剂,化学反应 61.0H,反应生成反-3-已烯
参考文献:Vic-Dibromides与diorganotellurides的脱溴.1.立体选择性,相对比率和机理含义.
标题:Vic-Dibromides与diorganotellurides的脱溴.1.立体选择性,相对比率和机理含义.
摘要:描述了用二芳基碲化物1-4和二正己基碲化物(9)对vic-二溴化物进行脱溴.提供了脱溴机理的解释,这解释了几个关键的实验观察结果:(1)该反应具有立体立体选择性,其中赤-二溴化物提供反式烯烃,而苏-二溴化物提供顺式烯烃,(2)该反应可进一步促进反应.富含电子的二有机碲化物,(3)在极性更大的溶剂中加速反应,(4)通过向带有溴取代基的碳中添加稳定碳阳离子的取代基来加速反应,(5)赤型二溴化物非常多比苏式二溴化物更具反应性.有人提出,维他命二溴化物形成溴离子的速度很慢,而且速度决定.形成溴离子后,快速清除"
Doi:10.1021/jo9713363

专利信息

专利号:US-7247752-B2
优先权日:2004-10-01
标 题 :Methods for the synthesis of astaxanthin
发明人：LOCKWOOD SAMUEL F; TANG PENG CHO; NADOLSKI GEOFF; JACKSON HENRY L; FANG ZHIQIANG; DU YISHU; YANG MIN; GEISS WILLIAM; WILLIAMS RICHARD; BURDICK DAVID
权利人:CARDAX PHARMACEUTICALS INC
摘要:A method used for synthesizing intermediates for use in the synthesis of carotenoids and carotenoid analogs, and/or carotenoid derivatives. In some embodiments, the invention includes methods for synthesizing optically active intermediates useful for the synthesis of optically active carotenoids. Synthesis of optically active carotenoids, in one embodiment, may be accomplished by forming an optically active dihydroxy intermediate from ketoisopherone. The optically active dihydroxy intermediate may be converted into optically active astaxanthin derivatives.

专利号:US-7973171-B2
优先权日:2005-06-13
标题:Process for synthesis of dialkoxyorganoboranes
发明人：BURKHARDT ELIZABETH; ATKINS WILLIAM
权利人:BURKHARDT ELIZABETH; ATKINS WILLIAM
摘要:The invention relates to a process for the synthesis of dialkoxyorganoboranes, in particular to a process for the synthesis of dialkoxyorganoboranes by an ester exchange reaction. Moreover, the invention relates to a process for the synthesis of organo-oxazaborolidine catalysts (organo-CBS) and of trialkylboroxins. Furthermore, the invention relates to methods of using dialkoxyorganoboranes for the preparation of organo-CBS catalysts and in Suzuki-type coupling reactions.

专利号:US-2024228455-A1
优先权日:2021-04-27
标 题 :Synthesis of cbn and cbnv
发明人：KAVARANA MALCOLM J
权利人:TEEWINOT LIFE SCIENCES CORP
摘要:The invention includes chemical synthesis for preparing cannabinol (CBN) and cannabinovarin (CBNV). The process is suitable for inter alia the large-scale synthesis of pharmaceutical grade CBN and CBNV.

专利号:WO-2023102600-A1
优先权日:2021-12-06
标题:Synthesis of amphiphilic block copolymers and polymeric nanofibers produced therefrom
发明人：ZETTERLUND PER B; ISHIZUKA FUMI; KIM HYUN JIN; CHATANI SHUNSUKE; NIINO HIROSHI
权利人:NEWSOUTH INNOVATIONS PTY LTD
摘要:The present disclosure relates to the field of synthesis of block copolymers, and polymeric nanofibers having a core-shell morphology produced therefrom. The present disclosure relates to the field of synthesis of block copolymers where one block is more hydrophobic than the other block and is a different composition. The disclosure also relates to uses of these polymeric nanofibers in various applications, such as reinforcing a polymeric matrix and for coatings applications.

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-6512081-B1
优先权日:1997-07-21
标题:Synthesis of dithioester chain transfer agents and use of bis(thioacyl) disulfides or dithioesters as chain transfer agents
发明人：RIZZARDO ENZIO; THANG SAN HOA; MOAD GRAEME
权利人:E I DUPONT NEMOURS AND COMPANY; COMMW SCIENT IND RES ORG
摘要:This invention relates to the synthesis of dithiocarboxylic acid esters by reaction of bis(thioacyl) disulphides, thioacetals or vinylidane bis(thioether) with free-radicals (optionally in the presence of monomers). The invention also relates to processes for the synthesis of polymers utilising these dithioesters as polymerisation regulators (chain transfer agents) or to the use of bis(thioacyl) disulphides to generate dithioester chain transfer agents in situ.