Palladium-catalyzed remote C–H functionalization of 2-aminopyrimidines
作者:Animesh Das、Akash Jana、Biplab Maji
DOI:10.1039/d0cc00575d
日期:——
A straightforward strategy was developed for the arylation and olefination at the C5-position of the N-(alkyl)pyrimidin-2-amine core with readily available aryl halides and alkenes, respectively. This approach was highly regioselective, and the transformation was achieved based on two different (Pd(ii)/Pd(iv)) and (Pd(0)/Pd(ii)) catalytic cycles.
Palladium-catalyzed anti-Markovnikov oxidative acetalization of activated olefins with iron(<scp>iii</scp>) sulphate as the reoxidant
作者:Rodney A. Fernandes、Sandhya S. Yadav、Praveen Kumar
DOI:10.1039/d1ob02227j
日期:——
efficient palladium-catalyzed anti-Markovnikov oxidative acetalization of activated terminal olefins with iron(III) sulfate as the reoxidant. This methodology requires mild reaction conditions and shows high regioselectivity toward anti-Markovnikov products and compatibility with a wide range of functional groups. Iron(III) sulphate was the sole reoxidant used in this method. Various olefins like vinylarenes
本文公开了以硫酸铁( III )为再氧化剂的活性末端烯烃的高效钯催化抗马尔科夫尼科夫氧化缩醛化反应。该方法需要温和的反应条件,并显示出对抗马尔科夫尼科夫产物的高区域选择性以及与多种官能团的相容性。硫酸铁( III ) 是该方法中使用的唯一再氧化剂。各种烯烃,如乙烯基芳烃、芳基烯丙基醚、丙烯酸芳基或苄基丙烯酸酯和高烯丙醇都反应良好,提供抗马尔科夫尼科夫缩醛,其中一些代表正交官能化的 1,3-和 1,4-二氧化化合物。
Making Carbonyls of Amides Nucleophilic and Hydroxyls of Alcohols Electrophilic Mediated by SO<sub>2</sub>F<sub>2</sub> for Synthesis of Esters from Amides
作者:Wan-Yin Fang、Gao-Feng Zha、Hua-Li Qin
DOI:10.1021/acs.orglett.9b03274
日期:2019.11.1
promotion of sulfuryl fluoride, the carbonyl groups of amides performed as nucleophiles while the hydroxyl groups of alcohols were activated to functionalize as electrophiles. This study displayed that the amide C-N bonds could be easily cleaved with delicate nucleophiles to form the ester C-O bonds at room temperature without using transition metals. The broad substrate scope and excellent functional
[EN] DICARBOXYLIC ACID COMPOUNDS. INORGANIC PARTICLES TREATED WITH THE DICARBOXYLIC ACID COMPOUNDS, AND COMPOSITIONS THEREOF<br/>[FR] COMPOSÉS D'ACIDE DICARBOXYLIQUE, PARTICULES INORGANIQUES TRAITÉES PAR LES COMPOSÉS D'ACIDE DICARBOXYLIQUE ET COMPOSITIONS CORRESPONDANTES
申请人:3M INNOVATIVE PROPERTIES CO
公开号:WO2021064530A1
公开(公告)日:2021-04-08
Described herein is a dicarboxylic acid compound of formula (I): Wherein: R3 comprises an aryl group, R2 is an alkylene group comprising 1 to 6 carbon atoms, n is 0 or 1, R1 is H or CH3, and X is S or NZ, wherein Z is H, an alkyl group comprising 1 to 4 carbon atoms or a phenyl group. Such compounds can be used to modify the surface of inorganic particles. These modified inorganic particles may then be advantageously used in polymerizable resins to increase the refractive index of the resulting composite, while enabling good flow properties of the polymerizable composition
RADICAL POLYMERIZABLE COMPOSITION, CURED PRODUCT, AND PLASTIC LENS
申请人:DIC Corporation
公开号:US20140148525A1
公开(公告)日:2014-05-29
There are provided a radical polymerizable composition having a low viscosity suitable for coating, a cured product obtained by curing the composition, the cured product having a high refractive index and high toughness and being not easily cracked or chipped when cutting, and a plastic lens obtained by curing the composition. A radical polymerizable composition includes phenylbenzyl(meth)acrylate (A), a urethane(meth)acrylate (X) having an aromatic ring in its molecular structure, and a radical polymerization initiator (Y) as essential components.