二氧化硅负载的超小 Ni 纳米颗粒允许在温和条件下将各种腈类普遍和选择性地氢化为伯胺。通过煅烧由 Ni( II ) 生成的模板材料)硝酸盐和胶体二氧化硅在空气下,随后在分子氢存在下还原,制备最佳催化剂。制备的负载型纳米颗粒稳定,使用方便,易于回收利用。最佳催化剂材料的适用性通过对超过 110 种不同的脂肪族和芳香族腈(包括功能化和工业相关底物)进行氢化来证明。具有挑战性的杂环腈,特别是氰基吡啶,以良好的收率提供了相应的伯胺。所得胺可作为制备众多生命科学产品和聚合物的重要前体和中间体。
[EN] COMPOSITION OF MATTER FOR USE IN ORGANIC LIGHT-EMITTING DIODES<br/>[FR] COMPOSITION DE MATIÈRE DESTINÉE À ÊTRE UTILISÉE DANS DES DIODES ÉLECTROLUMINESCENTES ORGANIQUES
申请人:KYULUX INC
公开号:WO2019191665A1
公开(公告)日:2019-10-03
The present disclosure relates to compounds capable of emitting delayed fluorescence, and uses of the compounds in organic light-emitting diodes.
本公开涉及能够发射延迟荧光的化合物,以及该化合物在有机发光二极管中的用途。
Photooxidation catalyst and production process for aldehyde derivatives
申请人:SHOWA DENKO K.K.
公开号:US20030098229A1
公开(公告)日:2003-05-29
The present invention relates to a catalyst useful for a photooxidation reaction and also relates to a novel process for producing aldehydes, particularly aromatic aldehydes, which are useful as an intermediate for the production of agrochemical and medical preparations. The catalyst is particularly suitable for the oxidation of a methyl group difficult to oxidize.
A photooxidation catalyst according to the invention is a halogenated aromatic nitrile represented by the following formula (1):
1
(wherein X represents a chlorine atom or a fluorine atom, m represents an integer of 1 to 5, n represents an integer of 1 to 5, m+n≦6, and when n is 2 or more, Xs may be the same or different).
Process for production of benzonitrile and benzyl alcohol
申请人:Showa Denko K.K.
公开号:US06020517A1
公开(公告)日:2000-02-01
A process for producing a fluorinated benzonitrile comprising hydrogenolyzing a fluorinated dicyanobenzene substituted with 1 to 4 fluorine atoms and having the remainder which may be substituted with a chlorine atom in the presence of a catalyst to cause hydrodecyanation of only the cyano group of one side and a process for producing a fluorinated benzyl alcohol comprising reducing the fluorinated benzonitrile and hydrolyzing the fluorinated benzonitrile and reducing the resultant corresponding fluorinated benzoic acid to convert the cyano group to a hydroxymethyl group.
PROCESS FOR PREPARING TETRAFLUOROBENZENE CARBALDEHYDE
ALKYL ACETAL
申请人:Ikeda Haruhiko
公开号:US20100105954A1
公开(公告)日:2010-04-29
A process for preparing tetrafluorobenzene carbaldehyde alkyl acetal represented by the following formula (II), comprising reducing tetrafluorocyanobenzene represented by the following formula (I) with a metal catalyst containing a platinum group metal in the presence of an alkyl alcohol represented by R—OH (R is an alkyl group of 1 to 4 carbon atoms) and an acid; (I) wherein m is 1 or 2, n is 0 or 1, and m+n is 2, (II) wherein m and n are the same as those in the formula (I), and R is an alkyl group of 1 to 4 carbon atoms.
Verfahren zur Gewinnung von substituierten Fluorbenzolen
申请人:BAYER AG
公开号:EP0270964A2
公开(公告)日:1988-06-15
Substituierte Fluorbenzole, die in aprotischen, polaren Lösungsmitteln bzw. in Gemischen, die solche Lösungsmittel enthalten, anfallen, können dadurch gewonnen werden, daß man die substituierten Fluorbenzole mit aliphatischen Extraktionsmitteln aus den Lösungsmitteln bzw. den Lösungsmittelgemischen extrahiert und danach die Extraktionsmittel von den substituierten Fluorbenzolen abtrennt.