含杂原子的阶梯型π共轭分子的合成通过钯催化的分子内氧化性下成功地实现了 H / C ħ交叉偶联反应。该反应提供了各种带有杂原子(例如氮,氧,磷和硫原子)和羰基的π共轭分子。π共轭分子有效地合成,即使在克规模,以及较大的π共轭分子也由双C所得 H / C ħ交叉偶联反应和连续氧化cycloaromatization。
[EN] BLEACH CATALYSTS<br/>[FR] CATALYSEURS DE BLANCHIMENT
申请人:BASF SE
公开号:WO2012080088A1
公开(公告)日:2012-06-21
The present invention relates to specific acylhydrazone compounds, their use as oxidation catalysts and to a process for removing stains and soil on textiles and hard surfaces. The compounds are substituted with a specific cyclic ammonium group adjacent to the acyl group. Further aspects of the invention are compositions or formulations comprising such compounds.
[EN] METAL FREE BLEACHING COMPOSITION<br/>[FR] COMPOSITION DE BLANCHIMENT DÉPOURVUE DE MÉTAL
申请人:BASF SE
公开号:WO2012000846A1
公开(公告)日:2012-01-05
The present invention relates to the use of a composition comprising specific a-amino- ketones, H2O2, a H2O2 precursor or a peracid and optionally an activator as a bleaching mixture for textile materials or dishes either manually or in an automatic washing machine or dish washer. Further aspects of the invention are the composition comprising specific a- aminoketones and H2O2, a H2O2 precursor or a peracid and a process for bleaching of stains or of soiling on textile materials or dishes in the context of a washing process either manually or in an automatic washing machine or dish washer. Also aspects of the invention are detergent formulations comprising such a composition and novel compounds.
Pd‐Catalyzed One‐Pot Sequential Sonogashira Coupling and Dual Annulations Cascade for the Synthesis of Benzofuro[3,2‐
<i>c</i>
]‐Triazalo/Pyrrolo‐Quinolines
作者:Dipak B. Deokar、Soumi Laha、B. Sridhar、Dharmendra Kumar Tiwari、Pravin R. Likhar
DOI:10.1002/adsc.202200785
日期:2022.11.22
Palladium-catalyzed coupling reaction followed by dual annulation has been achieved for the synthesis of various triazolo/pyrrolo fused benzofuro-quinolines from readily available starting materials. The developed protocol proceeds through palladium-catalyzed Sonogashira coupling, benzannulation followed by C−Hactivation triggered second annulationreactioncascades in a single pot. In particular
By photoinduced 6π-electrocyclization of 2-(benzofuran-2-yl)-3-phenylpyridine derivatives 1, a method for the synthesis of trans-dihydrobenzo[f]quinolines 2, cis-dihydrobenzo[f]quinolines 3 and 8b-methyl-1,8b-dihydrobenzo[f]quinolines 4 was developed. Irradiation of 2-(benzofuran-2-yl)-3-phenylpyridine 1 in acetone–H2O (5 : 1, v/v) with a 313 nm UV lamp under an argon atmosphere at room temperature
光诱导6π-电环化2-(苯并呋喃-2-基)-3-苯基吡啶衍生物1,合成反式-二氢苯并[ f ]喹啉2、顺式-二氢苯并[ f ]喹啉3和8b-甲基-开发出1,8b-二氢苯并[ f ]喹啉4 。在室温、氩气气氛下,用 313 nm 紫外灯在丙酮-H 2 O (5 : 1, v/v) 中照射2- (苯并呋喃-2-基)-3-苯基吡啶 1 ,成功生成2,在高温(200°C)下在甘油中进一步转化为3 。然而,用254 nm UV灯照射CH 2 Cl 2中的2-(3-甲基苯并呋喃-2-基)-3-苯基吡啶1以良好的收率得到4 。通过1的6π电环化重排合成2、3和4不仅具有高原子效率,而且不需要过渡金属催化剂或添加剂。
Bleaching and detergent composition
申请人:UNILEVER N.V.
公开号:EP0364027A2
公开(公告)日:1990-04-18
Storage-stable washing and/or bleaching compositions containing a peroxyacid and/or a peroxyacid-yielding compound as bleaching agent are disclosed which contain as optical brightener a benzofuranyl biphenyl compound of the formula :
wherein R is hydrogen, C1-C4 alkyl, C1-C4 alkoxy, halogen, phenoxy or benzyloxy as mono or multiple substituent; M is hydrogen and/or an equivalent of a non-chromophoric cation; n is an integer from 0-2, and m is 0 or 1, with the proviso that n and m are not both zero.
本发明公开了含有过氧酸和/或过氧酸衍生化合物作为漂白剂的贮存稳定的洗涤和/或漂白组合物,该组合物含有式......的苯并呋喃联苯化合物作为光学增白剂:
其中 R 是氢、C1-C4 烷基、C1-C4 烷氧基、卤素、苯氧基或作为单个或多个取代基的苄氧基;M 是氢和/或等效的非色素阳离子;n 是 0-2 之间的整数,m 是 0 或 1,但 n 和 m 不能都为零。