primary amines under the standard conditions, the bis(N‐phenyl) products were predominantly formed. This method was also applicable to the synthesis of bioactive N‐phenyl amino acid derivatives. The control experiments, the deuterium labelling study, and the presence of regioisomers of N‐arylated products when using 4‐substituted triarylsulfonium triflates suggested that the reaction might proceed through
本文介绍了一种简单有效的三芳基ulf三氟甲磺酸酯对各种胺进行无过渡金属N-芳基化的方法。在t BuOK或KOH存在下,脂族和芳族胺均在80°C下平稳转化,从而以高至高收率获得了相应的单N芳基化产物。反应物的摩尔比和碱的选择对反应有很大的影响。当在标准条件下将大量过量的[Ph 3 S] [OTf]和t BuOK用于伯胺时,主要形成了双(N-苯基)产物。该方法也适用于生物活性氮的合成-苯基氨基酸衍生物。对照实验,氘标记研究以及使用4-取代的三芳基ulf三氟甲磺酸酯时N芳基化产物的区域异构体的存在表明,该反应可能会通过芳烃中间体进行。本方案证明,三芳基ulf盐在C Ar -N键的构建中是通用的芳基化试剂。
Nucleic acid-immobilized substrate
申请人:——
公开号:US20010003649A1
公开(公告)日:2001-06-14
By immobilizing identical or different nucleic acids in a plurality of dot-like areas on a carrier which comprises a base material and compound carried on the base material, the compound having one or more alkylating groups, through intermediary of the alkylating group, a nucleic acid-immobilized substrate on which nucleic acids are firmly immobilized in fine dot area without reference to chain length of nucleic acids is provided, which enables efficiently introducing the nucleic acids onto the base material in a simple manner and can be produced with a simple apparatus.
Method for separating and collecting nucleic acids
申请人:NISSHINBO INDUSTRIES, INC.
公开号:EP1130120A2
公开(公告)日:2001-09-05
A method for separating and collecting nucleic acids, which comprises:
a step of bringing a sample nucleic acid solution into contact with a nucleic acid-immobilized substrate comprising a substrate and two or more kinds of single-stranded nucleic acids separately immobilized on the substrate, to allow hybridization of the immobilized single-stranded nucleic acids and single-stranded nucleic acids complementary to the immobilized single-stranded nucleic acids, and
a step of separating the hybridized single-stranded nucleic acids according to immobilized portions of the immobilized nucleic acids, to collect the hybridized single-stranded nucleic acids without disassembling the nucleic acid-immobilized substrate.
Composition, compound, material for organic electroluminescence element, ink composition, organic electroluminescence element, and electronic device
申请人:IDEMITSU KOSAN CO., LTD.
公开号:US10290815B2
公开(公告)日:2019-05-14
A composition or a compound suitable for use in forming the layer of organic EL device by a coating method, a material for organic electroluminescence devices including the composition or the compound, an ink composition including the composition or the compound, an organic electroluminescence device employing the composition or the compound, and an electronic device including the organic electroluminescence device are provided. The compound includes a nitrogen-containing hetero aromatic hydrocarbon group which has a substituent with a specific structure. The composition includes the compound.