CAS: 128-39-2; 2,6-Di-Tert-Butylphenol

上下游产品

CAS号1516-95-6 1,3-二-叔丁基-2-甲氧基苯 | CAS号75-65-0 叔丁醇 | CAS号108-95-2 苯酚 | CAS号115-11-7 2-甲基丙烯 | CAS号507-19-7 溴代叔丁烷 | CAS号719-22-2 2,6-二叔丁基苯醌 | CAS号2455-14-3 3,3',5,5'-四叔丁基-... | CAS号124-38-9 二氧化碳 | CAS号6669-13-2 叔丁基苯醚 | CAS号1139-52-2 4-溴-2,6-二-叔-丁基苯酚 | CAS号100-67-4 苯酚钾 | CAS号4906-22-3 3,3'5,5'-四甲基-4,... | CAS号527-61-7 2,6-二甲基对苯醌 | CAS号2455-14-3 3,3',5,5'-四叔丁基-... | CAS号880-06-8 4-hydroxy-3,5-d... | CAS号2417-04-1 3,3',5,5'-四甲基联苯... | CAS号126657-30-5 3,5-二甲基-3',5'-二... | CAS号4130-42-1 2,6-二叔丁基-4-乙基苯酚 | CAS号718624-10-3 1,3-bis(3,5-di-...

1,3-二-叔丁基-2-甲氧基苯置于lithium,乙二胺体系中,用 四氢呋喃 用作溶剂,化学反应 0.5H,以82%的收率获得2,6-二叔丁基苯酚
参考文献:锂-乙二胺-Thf-介导的芳烃α-位裂解的范围和局限性:在温和条件下芳基甲基醚和苄基醚的脱保护
标题:锂-乙二胺-Thf-介导的芳烃α-位裂解的范围和局限性:在温和条件下芳基甲基醚和苄基醚的脱保护
摘要:考察了锂-乙二胺-Thf介导的芳烃α位还原键断裂的范围和局限性.即使在低至-10 oc 的条件下,无氧 Thf 中的锂金属(5 Equiv)和乙二胺(7 Equiv)等非常温和的条件对芳族醚的去甲基化也非常有效.烯丙基苄基醚也在这些条件下脱保护,烯丙醇部分几乎没有变化.通过这项研究,开发了 2,6-二甲基苄基 (M-Xylylmethyl,Mxm) 基团作为苄基的替代物,在上述还原条件下易于裂解.
Doi:10.1055/s-2004-815977

专利信息

专利号:US-12291596-B2
优先权日:2018-11-30
标 题 :Radical cascade-enabled synthesis of precision polymers with complex main-chain structures
发明人：NIU JIA; HUANG HANCHU; WANG WENQI
权利人:THE TRUSTEES OF BOSTON COLLEGE
摘要:Radical cascade reactions enabling sequence-controlled ring-closing polymerization and ring-opening polymerization for the controlled synthesis of polymers with complex main-chain structures are provided. Facile syntheses leading to low-strain macrocyclic monomers consisting of the ring-opening triggers and extended main-chain structures are also provided. The present disclosure further provides methods for excellent control over polymer molecular weights and molecular weight distributions and high chain-end fidelity allows for the preparation of polymeric systems with well-defined architectures. Further provided are the general nature of the radical cascade-triggered transformations in polymer chemistry, and its application to the synthesis of polymers with diverse main-chain structural motifs with tailored functions. 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-6184168-B1
优先权日:1997-09-22
标题:Synthesis of 1,4-trans-polybutadiene using a lanthanide organic acid salt catalyst
发明人：LYNCH THOMAS J
权利人:BRIDGESTONE CORP
摘要:The invention provides a catalyst composition, comprising: (a) an organolithium compound; and, (b) an organic acid salt of lanthanide series element; wherein: (1) only components (a) and (b) are required to promote the synthesis of 1,4-trans-polybutadiene; (2) the ratio of component (a) to component (b) is selected to maximize formation of the trans structure of said 1,4-trans-polybutadiene; and, (3) components (a) and (b) are selected for enabling further diblock synthesis. The invention further contemplates a process for using the catalyst to synthesize 1,4-trans-polybutadiene and other polymers and copolymers having trans configuration in the conjugated diene monomer contributed units.

专利号:US-10053406-B2
优先权日:2015-10-23
标题 :Synthesis of honokiol
发明人：JARACZ STANISLAV; KOZLOWSKI MARISA; EUN LEE YOUNG; KIM SUN MIN
权利人:COLGATE PALMOLIVE CO; UNIV PENNSYLVANIA
摘要:Disclosed herein are improved methods for the synthesis of honokiol, as well as methods for the synthesis of 3,3′-di-tert-butyl-5,5′-dimethyl-[1,1′-biphenyl]-2,4′-diol, 3′,5-dimethyl-[1,1′-biphenyl]-2,4′-diol, and 2,4′-dimethoxy-3′,5-dimethyl-1,1′-biphenyl, 3,3′,5,5′-tetra-tert-butyl-[1,1′-biphenyl]-2,4′-diol, and certain tetrasubstituted bisphenols, and uses therefor.

专利号:US-11186678-B2
优先权日:2018-11-30
标 题 :Radical cascade-enabled synthesis of precision polymers with complex main-chain structures
发明人：NIU JIA; HUANG HANCHU; WANG WENQI
权利人:TRUSTEES BOSTON COLLEGE
摘要:Radical cascade reactions enabling sequence-controlled ring-closing polymerization and ring-opening polymerization for the controlled synthesis of polymers with complex main-chain structures are provided. Facile syntheses leading to low-strain macrocyclic monomers consisting of the ring-opening triggers and extended main-chain structures are also provided. The present disclosure further provides methods for excellent control over polymer molecular weights and molecular weight distributions and high chain-end fidelity allows for the preparation of polymeric systems with well-defined architectures. Further provided are the general nature of the radical cascade-triggered transformations in polymer chemistry, and its application to the synthesis of polymers with diverse main-chain structural motifs with tailored functions. 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-10919904-B2
优先权日:2016-08-17
标 题 :Northern-southern route to synthesis of bacteriochlorins
发明人：LIU YIZHOU; LINDSEY JONATHAN S; ALLU SRINIVASA RAO; FUJITA HIKARU
权利人:UNIV NORTH CAROLINA STATE
摘要:Described herein are chlorins, bacteriochlorins, methods and intermediates for the synthesis of bacteriochlorins, and methods of using such bacteriochlorins for, among other things, diagnostic and therapeutic purposes such as luminescent compounds in flow cytometry, and as active agents in photodynamic therapy (PDT).

专利号:US-4766242-A
优先权日:1982-02-01
标 题:Synthesis of substituted aryl sulfides
发明人：HANSON HARRY T; SAPP JR JOHN B
权利人:HOECHST CELANESE CORP
摘要:Provided is a novel and effective process for the synthesis of aryl sulfides substituted with an alkanoylamino or (N-alkyl)alkanoylamino substituent. The process comprises reacting an appropriately substituted aromatic compound with a sulfur dihalide, preferably sulfur dichloride, in the presence of an alkali metal tetrafluoroborate catalyst and an ether comprising solvent.