Synthesis of pyrrolo[3,2- d]pyrimidine-2,4(3 H)-diones by domino C-N coupling/hydroamination reactions [0.03%]
串联C-N偶联/氢胺化反应合成吡咯并[3,2-d]嘧啶-2,4(3h)-二酮类化合物
Ruben Manuel Figueira de Abreu,Robin Tiedemann,Peter Ehlers et al.
Ruben Manuel Figueira de Abreu et al.
A variety of pyrrolo[3,2-d]pyrimidine-2,4(3H)-diones were prepared by a combination of Sonogashira reaction and subsequent cyclization by domino C-N coupling/hydroamination reaction. The optical properties (UV-vis absorption and fluorescenc...
On the photoluminescence in triarylmethyl-centered mono-, di-, and multiradicals [0.03%]
以三芳基甲烷为中心的单、双及多自由基光致发光性质研究
Daniel Straub,Markus Gross,Mona E Arnold et al.
Daniel Straub et al.
Organic radicals with light-emitting properties and exceptional stability offer exciting opportunities to address spin-statistical limitations in organic electronics and advance quantum technologies. These radicals, acting as small molecula...
Studies on the syntheses of β-carboline alkaloids brevicarine and brevicolline [0.03%]
breveccarine和brevicolline生物碱的合成研究
Benedek Batizi,Patrik Pollák,András Dancsó et al.
Benedek Batizi et al.
A new total synthesis of the β-carboline alkaloid brevicarine is disclosed. The synthesis was carried out starting from an aromatic triflate key intermediate, allowing the introduction of various substituents into position 4 of β-carbolin...
Dicarboxylate recognition based on ultracycle hosts through cooperative hydrogen bonding and anion-π interactions [0.03%]
基于超环主体通过协同氢键和阴离子-π相互作用识别二羧酸盐
Wen-Hui Mi,Teng-Yu Huang,Xu-Dong Wang et al.
Wen-Hui Mi et al.
The efficient binding of dicarboxylates represents an important yet challenging issue in supramolecular chemistry. In this study, we designed functional ultracycles as hosts to accommodate large organic dicarboxylate anions. These ultracycl...
Cu-Bpin-mediated dimerization of 4,4-dichloro-2-butenoic acid derivatives enables the synthesis of densely functionalized cyclopropanes [0.03%]
铜和二膦配体催化的4,4-二氯-2-丁烯酸衍生物的二聚化反应用于合成高官能度环丙烷类化合物
Patricia Gómez-Roibás,Andrea Chaves-Pouso,Martín Fañanás-Mastral
Patricia Gómez-Roibás
4,4-Dichloro-2-butenoic acid derivatives are shown to undergo a rare dimerization process when reacted with bis(pinacolato)diboron under copper catalysis. The reaction provides densely functionalized products with excellent levels of chemo-...
Jilei Cao,Leiyang Bai,Xuefeng Jiang
Jilei Cao
The development of streamlined methodologies for the expeditious assembly of structurally diverse organic architectures represents a paramount objective in contemporary synthetic chemistry, with far-reaching implications across pharmaceutic...
Silver(I) triflate-catalyzed post-Ugi synthesis of pyrazolodiazepines [0.03%]
银三氟甲磺酸酯催化亚Ugi反应合成吡唑并二氮杂卓类化合物
Muhammad Hasan,Anatoly A Peshkov,Syed Anis Ali Shah et al.
Muhammad Hasan et al.
A silver(I) triflate-catalyzed post-Ugi assembly of novel pyrazolo[1,5-a][1,4]diazepine scaffolds is reported offering high yields (up to 98%) under mild conditions. The synthetic sequence involves the Ugi four-component reaction (U4CR) of ...
Substituent effects in N-acetylated phenylazopyrazole photoswitches [0.03%]
N-乙酰基茋偶氮吡唑光致变色材料的取代基效应研究
Radek Tovtik,Dennis Marzin,Pia Weigel et al.
Radek Tovtik et al.
Phenylazopyrazole photoswitches proved to be valuable structural motifs for various applications ranging from materials science to medicine. Despite their potential, their structural diversity is still limited and a larger pool of substitut...
4-(1-Methylamino)ethylidene-1,5-disubstituted pyrrolidine-2,3-diones: synthesis, anti-inflammatory effect and in silico approaches [0.03%]
4-（1-甲基氨基）乙烯基-1,5-取代的吡咯烷-2,3-二酮：合成、抗炎作用和计算机辅助设计研究
Nguyen Tran Nguyen,Vo Viet Dai,Luc Van Meervelt et al.
Nguyen Tran Nguyen et al.
Pyrrolidine-2,3-diones are important intermediates in the synthesis of numerous nitrogen-containing heterocycles which possess a broad spectrum of biological and pharmacological activities. In this article, we report the synthesis of 4-(1-m...
Synthesis and photoinduced switching properties of C7-heteroatom containing push-pull norbornadiene derivatives [0.03%]
含C7杂原子的推动-拉动norbornadiene衍生物的合成及光诱导转换性质研究
Daniel Krappmann,Andreas Hirsch
Daniel Krappmann
We report the synthesis and characterization of heteroatom-incorporated norbornadiene (NBD) derivatives. Push-pull substitution on the 2 and 3 position as well as introduction of oxygen or nitrogen at position 7 of the NBD scaffold have led...