Primary tert-alkyl amines include analogues of amantadine, a fragment commonly linked to pharmacophoric groups to enhance biological activity. The preparation of primary tert-alkyl amines is considered to be a difficult problem. Four synthetic procedures, some of which have been previously reported for the synthesis of amines with primary (RCH2NH2) or secondary (RR'CHNH2) alkyl and/or aryl groups,
Novel antimitotic agents related to tubuloclustin: synthesis and biological evaluation
作者:Olga N. Zefirova、Evgeniya V. Nurieva、Birgit Wobith、Vladimir V. Gogol、Nikolay A. Zefirov、Andrei V. Ogonkov、Dmitrii V. Shishov、Nikolay S. Zefirov、Sergei A. Kuznetsov
DOI:10.1007/s11030-017-9739-6
日期:2017.8
ine], a highly cytotoxic anti-tubulin compound is known for its ability to promote microtubule disassembly followed by the formation of tubulin clusters of unique morphology. Three series of antimitoticagents related to tubuloclustin were designed and synthesized in order to enhance the molecular diversity of “tubuloclustin-like” family of compounds. The series of compounds with modified adamantane
The Reaction of some Carbonyl and Thiocarbonyl Compounds with Prenyl- and Crotyllithium in Tetrahydrofuran Solution
作者:V. Rautenstrauch
DOI:10.1002/hlca.19740570226
日期:——
(1) and cis-crotyllithium (Z-but-2-enyl-lithium) (2) in tetrahydrofuran solution, prepared according to the method of Eisch & Jacobs, react with carbonylcompounds to give the branched alcoholates with moderate to high selectivity, unless access to the carbonyl group is strongly hindered (see the Table). Adamantanethione (12) reacts with 1 to give the unbranched thiolate.
Process for preparation of high-purity organic compounds
申请人:——
公开号:US20030135068A1
公开(公告)日:2003-07-17
There is provided a method for obtaining a target organic compound such as an alkyladamantyl ester efficiently by purifying a crude organic compound which contains, as impurities, sublimable materials which start to sublime at temperatures lower than a boiling point of the target organic compound by use of such a simple method as distillation during its production process, without being adversely affected by adherence of the sublimable materials.
The distillation is carried out in the presence of a compound having a boiling point which is lower than a boiling point of the target organic compound, e.g., a carbonyl-group-containing compound. For example, 2-methyl-2-adamantyl methacrylate (boiling point: 92° C./0.3 mmHg) containing sublimable impurities such as adamantane (sublimation starting temperature: room temperature or lower) is distilled in the presence of 1,3-dimethyl-2-imidazolidinone (boiling point: 225° C.).
Processes for preparation of 2-alkyl-2adamantyl esters
申请人:——
公开号:US20030158437A1
公开(公告)日:2003-08-21
A magnesium halide salt of a 2-alkyl-2-adamantanol is reacted with a carboxylic acid halide such as acrylic chloride or the like in the presence of a tertiary amine to produce a 2-alkyl-2-adamantyl ester (the first invention).
A 2-alkyl-2-adamantanol is reacted with a carboxylic acid such as acrylic acid or the like in the presence of an acid catalyst such as concentrated sulfuric acid or the like and a drying agent composed of an acidic or neutral inorganic compound (e.g. magnesium sulfate) which is a solid at ordinary temperature in a dried state or of a water-absorbing high-molecular compound, to produce a 2-alkyl-2-admantyl ester (the second invention).
The above ester is important as a raw material for a resist for semiconductor production.