CAS: 1123-63-3; 4-Chloro-2,6-Dimethylphenol

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📜4-氯-2-甲基苯酚置于chlorobis(Ethylene)Rhodium(I) Dimer,硫酸,氢气,三乙胺体系中,用 1,4-二氧六环,溶剂黄146,乙腈 用作溶剂,20.0~150.0 °C,1.03 Mpa 条件下,反应 24.0H,反应生成4-氯-2,6-二甲基苯酚
参考文献:2,2'-亚甲基二酚中无应变 C(芳基)-c(烷基)键的催化活化
标题:2,2'-亚甲基二酚中无应变 C(芳基)-c(烷基)键的催化活化
摘要:无应变和非极性 C-C 键的催化活化仍然是一个很大程度上未解决的挑战.在这里,我们描述了我们在开发铑催化氢解 2,2'-亚甲基二酚中无应变 C(芳基)-C(烷基)键的详细努力,并辅以可去除的定向基团.通过耐受广泛的官能团,获得了非常好的单酚产品收率.此外,该反应具有可扩展性,催化剂负载量可降至 0.5 Mol%.此外,该方法被证明可有效切割酚醛树脂和商用酚醛清漆树脂模型中的 C(芳基)-C(烷基)键.最后,详细的实验和计算机制研究表明,C-H 活化是一种竞争性但可逆的非循环反应,
Doi:10.1021/jacs.1C13342

专利信息

专利号:BR-PI1102271-A2
优先权日:2011-05-26
标 题:Process for the total synthesis of enantiomerically pure ochratoxin alfa and its application in the synthesis of ochratoxin a

专利号:US-7358381-B2
优先权日:2002-10-25
标题 :Racemoselective preparation of bridged metallocene complexes having unsubstituted or 2-substituted indenyl ligands
发明人：DAMRAU HANS-ROBERT-HELLMUTH; MUELLER PATRIK; GARCIA VALERIE; SIDOT CHRISTIAN; TELLIER CHRISTIAN; LELONG JEAN-FRANCOIS; HURIEZ ERIC
权利人:BASELL POLYOLEFINE GMBH
摘要:The invention relates to a process for preparing racemic metallocene complexes by reacting transition metal complexes with cyclopentadienyl derivatives of alkali metals or alkaline earth metals and heating the reaction mixture obtained in this way to a temperature in the range from −78 to 250° C., to the corresponding metallocene complexes themselves and to their use as catalysts or as constituents of catalysts for the polymerization of olefinically unsaturated compounds or as reagents or catalysts in stereoselective synthesis.

专利号:US-7619106-B2
优先权日:2002-10-25
标题:Preparation of partially hydrogenated rac-ansa-metallocene complexes
发明人：DAMRAU HANS-ROBERT-HELLMUTH; MUELLER PATRIK; GARCIA VALERIE; SIDOT CHRISTIAN; TELLIER CHRISTIAN; DUCHIRON STEPHANIE; LELONG JEAN-FRANCOIS
权利人:BASELL POLYOLEFINE GMBH
摘要:The invention relates to a process for preparing hydrogenated or partially hydrogenated, racemic ansa-metallocene complexes by reacting bridged or unbridged transition metal complexes with alkali metal compounds or alkaline earth metal compounds, heating the resulting reaction mixture to a temperature in the range from −78 to 250° C. and at least partially hydrogenating the reaction products in the presence of a suitable catalyst, to the corresponding hydrogenated or partially hydrogenated metallocenes and to their use as catalysts or as a constituent of catalysts for the polymerization of olefinically unsaturated compounds or as reagents or catalysts in stereoselective synthesis.