A new route to 2,3,5,6-tetrafluoroterephthal aldehyde and its chemical transformation
摘要:
The title compound was prepared from commercial available and cheaper starting material terephthalolyl chloride by six-step reaction sequence in total 40% yield. Its chemical transformations were also studied. (C) 2003 Elsevier B.V. All rights reserved.
POTASSIUM FLUORIDE DISPERSION SOLUTION, AND PROCESS FOR PRODUCTION OF FLUORINATED ORGANIC COMPOUND USING THE SAME
申请人:Hagiya Koji
公开号:US20090099387A1
公开(公告)日:2009-04-16
A potassium fluoride dispersion essentially consisting of potassium fluoride and an aprotic organic solvent having a boiling point higher than that of methanol, which is obtainable by mixing a mixture containing potassium fluoride and 5 to 50 parts by weight of methanol per 1 part by weight of potassium fluoride with the aprotic organic solvent followed by concentrating the obtained mixture, and a process for producing a fluorine-containing organic compound comprising contacting an organic compound having at least one group capable of being substituted nucleophilically with a fluorine atom with the potassium fluoride dispersion.
photoredox catalyst proceed smoothly to give the corresponding alkyl‐substituted arenes in good to high yields. The present reaction system realizes a novel C−C bond‐forming reaction between two fragments generated from the C−C bond‐cleavage reactions of two independent substrates.
Bridged Aromatic Oxo‐ and Thioethers with Intense Emission in Solution and the Solid State
作者:Steffen Riebe、Suliman Adam、Bibhisan Roy、Iván Maisuls、Constantin G. Daniliuc、Justin Dubbert、Cristian A. Strassert、Igor Schapiro、Jens Voskuhl
DOI:10.1002/asia.202100492
日期:2021.8.16
based on bridged oxo- and/or thioethers revealing striking photoluminescence properties in fluid solution and in the solidstate. In total, nine compounds were investigated concerning their photophysical properties, which were interpreted by quantum chemical calculations. To our delight, we discovered compounds possessing nearly identical photoluminescence quantum yields (ΦF) in solution and in the
在这篇文章中,我们报道了一类基于桥接氧代和/或硫醚的发射体,它们在流体溶液和固态中揭示了惊人的光致发光特性。总共研究了九种化合物的光物理性质,并通过量子化学计算对其进行了解释。令我们高兴的是,我们发现化合物在溶液和固态下具有几乎相同的光致发光量子产率( Φ F ),这是迄今为止很少报道的。除了这些努力之外,我们还阐明了多晶型和溶剂极性对发射特性的影响。此外,还进行了深入的 X 射线衍射分析,将晶体中的分子堆积与光物理性质的差异联系起来。
Fluorobenzene derivatives
申请人:IMPERIAL CHEMICAL INDUSTRIES PLC
公开号:EP0415585A1
公开(公告)日:1991-03-06
A compound of Formula (2):
wherein: Y is -F or -Cl;
and a process for its preparation from a compound of Formula (3):
wherein: Y is -F or -Cl; with a process for the preparation of a compound of Formula (3) from a compound of Formula (4):
wherein: Y is -F or -Cl;
and a process for the conversion of a compound of Formula (2) into a compound of Formula (1):
are provided.
Compounds of Formula (1) are useful as intermediates in the manufacture of agrochemicals, pharmaceuticals and dyestuffs.
SUBSTITUTED CYANOANILINE COMPOUNDS, PREPARATION AND USE THEREOF
申请人:Liu Changling
公开号:US20140213598A1
公开(公告)日:2014-07-31
Disclosed is a substituted cyanoaniline compound or a salt thereof, wherein the compound has a structure represented by General Formula I. The compound of General Formula I has broad-spectrum fungicidal activity in the field of agriculture and effectively prevents against a variety of pathogens such as cucumber downy mildew, wheat powdery mildew, maize rust disease, rice blast and cucumber gray mold. In particular, even at a low dose, the compound effectively prevents and treats rice blast, cucumber gray mold, maize rust disease and cucumber downy mildew. Moreover, the raw materials for preparing the compounds are widely available and the synthesis method therefor is simple and convenient.