CAS: 4630-07-3; (3R,4As,5R)-4A,5-Dimethyl-3-(Prop-1-En-2-yl)-1,2,3,4,4A,5,6,7-Octahydronaphthalene

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CAS号10219-71-3 (2R)-α,α,8α,8aα...

Farnesyl Pyrophosphate置于valencene Synthase From Citrus Sinensis体系中,用 Aq. Buffer 作为反应溶剂,化学反应 12.0H,反应生成 巴伦西亚橘烯
参考文献:基于机理的萜烯合酶翻译后修饰和失活
标题:基于机理的萜烯合酶翻译后修饰和失活
摘要:萜烯是无所不在的天然化学物质,具有跨越生命所有三个领域的多种生物学功能.在专门的代谢中,萜烯合酶(tpss)的活性位点在形状和反应性方面不断发展,以指导多种化学型的生物合成,以实现机体适应性.由于大多数萜烯的生物合成机制涉及高反应性的碳阳离子中间体,因此催化这些级联反应的蛋白质表面具有反应区域,可能易于过早地捕获碳阳离子并可能使酶失活.在这里,我们使用蛋白质组学和x射线晶体学分析表明,阳离子中间体通过保守的活性位点残基捕获,从而导致抑制性自我烷基化.而且,阳离子介导的失活水平随着活性位点的突变而增加,会改变类异戊二烯二磷酸酯底物的大小和结构,同时会增加反应温度.与具有相对较高的产物特异性的tps相比,单独合成多种产物的tps较不容易自烷基化.总体而言,提出的结果表明,基于机理的烷基化代表了阳离子衍生的萜烯生物合成过程中被忽略的机械压力.
DOI:10.1021/acschembio.5B00539

专利信息

专利号:US-11851338-B2
优先权日:2019-04-19
标 题:Method for fast synthesis of an AFX-structure zeolite with a FAUjasite source
发明人：MARTINEZ FRANCO RAQUEL; HARBUZARU BOGDAN; LLIDO ERIC; BERTHOUT DAVID
权利人:IFP ENERGIES NOW
摘要:The present invention relates to a process for the rapid synthesis of an AFX-structure zeolite comprising at least:n i) mixing, in an aqueous medium, a FAU-structure zeolite having an SiO 2 (FAU) /Al 2 O 3 (FAU) molar ratio of between 2.00 and 100, a nitrogen-containing organic compound R, at least one source of at least one alkali and/or alkaline-earth metal M of valence n,n with the following molar composition: (SiO 2 (FAU) )/(Al 2 O 3 (FAU) ) between 2.00 and 100, H 2 O/(SiO 2 (FAU) ) between 1 and 100, R/(SiO 2 (FAU) ) between 0.01 and 0.6, M 2/n O/(SiO 2(FAU) ) between 0.005 and 0.45, wherein SiO 2 (FAU) denotes the amount of SiO 2 provided by the FAU zeolite and Al 2 O 3 (FAU) denotes the amount of Al 2 O 3 provided by the FAU zeolite, until a homogeneous precursor gel is obtained; n ii) hydrothermally treating said precursor gel obtained at the end of step i) under autogenous pressure at a temperature of between 120° C. and 250° C., for 4 to 12 hours.

专利号:WO-2025119716-A1
优先权日:2023-12-04
标 题:Synthesis of an izm-2 zeolite in the presence of ethanol
发明人：MARTINEZ FRANCO RAQUEL; PRIGENT MONIQUE
权利人:IFP ENERGIES NOW
摘要:The present invention relates to a novel method for preparing a microporous crystalline solid, referred to as an IZM-2 microporous solid or IZM-2 zeolite. This novel method allows for the synthesis of an IZM-2 zeolite from at least one silicon source, at least one aluminium source, at least one source of an alkali and/or alkaline-earth metal having a valency n, in the absence of an organic structure-directing agent and in the presence of at least one alcohol, preferably ethanol, and seeds of calcined IZM-2 zeolite.

专利号:US-2022332595-A1
优先权日:2019-09-30
标题:Low-temperature synthesis of high-purity afx zeolite

专利号:EP-4622743-A1
优先权日:2022-11-23
标 题 :Synthesis of a high purity izm-8 zeolite of fer framework type

专利号:EP-4249468-B1
优先权日:2022-03-21
标题 :A method for synthesis of halide salts
发明人：ÖZ SENOL; PRZYPIS LUKASZ
权利人:SOLAVENI GMBH

专利号:EP-1868979-A1
优先权日:2005-04-14
标题 :Efficient and economic asymmetric synthesis of nootkatone, tetrahydronootkatone, their precursors and derivatives