European Journal of Organic Chemistry

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Stable Triazenes Derived from 2‐Alkylaminonaphthalenes and 5‐Nitrobenzo[c]‐1,2‐thiazole‐3‐diazonium Hydrogensulfate
European Journal of Organic Chemistry - Tập 2008 Số 19 - Trang 3272-3278 - 2008
Josef Přikryl, V. Macháček, Petr Jansa, M. Svobodova, Aleš Růžička, Petr Nachtigall, Michal Černý
AbstractA calculation using the DFT method confirmed that the extraordinary stability of the triazenes formed by an azo coupling reaction of 5‐nitrobenzo[c]‐1,2‐thiazole‐3‐diazonium with primary or secondary aromatic amines is caused by the fact that these substances are protonated at the heterocyclic nitrogen atom and not at the nitrogen...... hiện toàn bộ
Late‐Stage C–H Bond Arylation of Spirocyclic σ1 Ligands for Analysis of Complementary σ1 Receptor Surface
European Journal of Organic Chemistry - Tập 2012 Số 30 - Trang 5972-5979 - 2012
Christina Meyer, Dirk Schepmann, Shuichi Yanagisawa, Junichiro Yamaguchi, Kenichiro Itami, Bernhard Wünsch
AbstractDirect C–H bond arylation in the α‐ and β‐positions of spirocyclic thiophenes containing various functional groups (amine, ether, acetal, lactone) was accomplished. Selective phenylation in the α‐position of the thiophene ring was achieved by using the catalytic system PdCl2/bipy/Ag2CO3. The int...... hiện toàn bộ
Divergent Palladium‐Catalyzed Cross‐Coupling of Nitropyrazoles with Terminal Alkynes
European Journal of Organic Chemistry - Tập 2018 Số 20-21 - Trang 2645-2650 - 2018
Hyeri Ha, Chang-Hoon Shin, Seri Bae, Jung Min Joo
Facile homo‐coupling of terminal alkynes, which generates conjugated diynes, is an undesired pathway in the development of transition‐metal‐catalyzed oxidative C–H functionalization of (hetero)arenes with terminal alkynes. By incorporating this process into a catalytic cycle, we achieved regio‐ and stereoselective hydroarylation of nitropyrazoles with the resulting 1,3‐diynes. A simple cha...... hiện toàn bộ
Recent Advances in Green Synthesis of Functionalized Phenols from Aromatic Boronic Compounds
European Journal of Organic Chemistry - Tập 2019 Số 44 - Trang 7307-7321 - 2019
Leiduan Hao, Guodong Ding, Derek A. Deming, Qiang Zhang
Phenol and its derivatives are fundamental building blocks in organic synthesis and materials science. Over the past decades, tremendous attention has been paid to construct functionalized phenols, and various methods have been developed. Owing to the high efficiency and mild reaction conditions, synthesis of phenols from the hydroxylation of aryl boronic compounds has been emerging as a p...... hiện toàn bộ
Recent Advances in Organoselenium Chemistry
European Journal of Organic Chemistry - Tập 2009 Số 11 - Trang 1649-1664 - 2009
Diana M. Freudendahl, Sohail Anjum Shahzad, Thomas Wirth
AbstractThis microreview highlights new developments of organoselenium chemistry and new selenium compounds as versatile reagents in synthesis. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2009)
A New Synthetic Pathway to Triphenylpyridines via Cascade Reactions Utilizing a New Iron‐Organic Framework as a Recyclable Heterogeneous Catalyst
European Journal of Organic Chemistry - Tập 2019 Số 13 - Trang 2382-2389 - 2019
Son H. Doan, Nhu K. Q. Tran, Phuc H. Pham, Vu Nguyen, Ngoc N. Nguyen, Phuong T.M. Ha, Shuang Li, Ha V. Le, Le Thi Hong Nhan, Thach N. Tu, Nam T. S. Phan
A new iron‐organic framework, VNU‐22 {[Fe3(BTC)(BPDC)2]·11.97H2O}, constructed from BTC3–, BPDC2– pillars and infinite [Fe3(CO2)7]∞ rod SBU, was obtained. The VNU‐22 was utilized a...... hiện toàn bộ
Bismuth(III) Triflate in Organic Synthesis
European Journal of Organic Chemistry - Tập 2004 Số 12 - Trang 2517-2532 - 2004
Hafida Gaspard‐Iloughmane, Christophe Le Roux
AbstractBismuth(III) triflate is a new, cheap and environmentally friendly Lewis acid. The research presented in this microreview is devoted to the evaluation of the scope of the uses of bismuth(III) triflate in organic synthesis. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2004)
Synthesis and Property Studies of Cyclotrisazobenzenes
European Journal of Organic Chemistry - Tập 2009 Số 32 - Trang 5647-5652 - 2009
Raphael Reuter, Nik Hostettler, Markus Neuburger, Hermann A. Wegner
AbstractAzobenzenophanes are fascinating macrocycles, which are of special interest due to their unique photochromic behavior. Cyclotrisazobenzenes2(R = H, Br,tBu) were prepared to probe how much strain the photoisomerization of the azobenzene motive can tolerate. The macrocycles were synthesized in an overall yield...... hiện toàn bộ
Lyngbyabellins K–N from Two Palmyra Atoll Collections of the Marine Cyanobacterium Moorea bouillonii
European Journal of Organic Chemistry - Tập 2012 Số 27 - Trang 5141-5150 - 2012
Hyukjae Choi, Emily Mevers, Tara Byrum, Frederick A. Valeriote, William H. Gerwick
AbstractFive lipopeptides of the lyngbyabellin structure class, four cyclic (1–3 and 5) and one linear (4), were isolated from the extracts of two collections of filamentous marine cyanobacteria obtained from the Palmyra Atoll in the Central Pacific Ocean. Their planar struc...... hiện toàn bộ
Recent Advances in the A3 Coupling Reactions and their Applications
European Journal of Organic Chemistry - Tập 2019 Số 16 - Trang 2704-2720 - 2019
C. P. Irfana Jesin, Ganesh Chandra Nandi
Propargylamines are an important class of organic compounds that have been widely used as building blocks for the synthesis of various kinds of chemically and biologically relevant compounds. Over the last few years, there have been a rapid growth in the research dedicated to developing the synthetic protocol for propargylamine derivatives. Among various methods that are reported for the s...... hiện toàn bộ
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