Results 91 to 100 of about 150,986 (194)

The Effect of the Gem‐Dimethyl Unit in the Gold‐Catalyzed Cycloisomerization of Aliphatic 1‐Bromoalkynes

European Journal of Organic Chemistry, Volume 29, Issue 12, 23 March 2026.
The conformational effect of the gem‐dimethyl motif and its isostere cyclopropane unit in the gold‐catalyzed cycloisomerization of aliphatic 1‐bromoalkynes has been studied. An unexpected inhibitory effect of the cyclopropane ring has been observed.
Rubén Miguélez, Omar Arto, Hanna Siera, Isabel Merino, Gebhard Haberhauer, Pablo Barrio   +5 more
wiley   +1 more source

Evaluación de la fotodegradación del colorante naranja II reutilizando sulfuro de cadmio (cds) obtenido como residuo [PDF]

, 2015
En la presente investigación se realizó la foto-degradación del Naranja II (producto de prácticas convencionales de química orgánica), con el Sulfuro de Cadmio obtenido como residuo de las prácticas concernientes a marcha de cationes en las asignaturas ...
Hernández Jiménez, Natalia, Ramírez Castaño, Yuliana   +1 more
core  

Withanolides and related steroids [PDF]

, 2011
Since the isolation of the first withanolides in the mid-1960s, over 600 new members of this group of compounds have been described, with most from genera of the plant family Solanaceae.
A Bhattacharya, A Cirigliano, A Kumar, A Mühlbauer, A Pecci, A Srivastava, A Yokosuka, A Yokosuka, A-L Perez-Castorena, AA Wube, AB Ray, AC Sharada, AC Waiss, AD Kinghorn, AG Damu, AH Januário, AL Pérez-Castorena, AL Risinger, AL Risinger, AM Abou-Douh, AM Cirigliano, AM Cirigliano, AM Cirigliano, AS Atta-ur-Rahman, AS Veleiro, AS Veleiro, AS Veleiro, AS Veleiro, AS Veleiro, ASR Anjaneyulu, ASR Anjaneyulu, AT Hunziker, AT Vieira, B Jayaprakasam, B Jayaprakasam, B Jayaprakasam, B Makino, B Makino, B Makino, B Yang, B Yang, B-N Su, B-N Su, B-N Su, B-N Su, BA Bhat, BJA Bravo, BR Madina, BR Madina, BS Siddiqui, BS Siddiqui, BS Siddiqui, BS Siddiqui, C Carcamo, C Mandal, C Tohda, C Z-l, C-F Huang, C-Y Ma, CA Elliger, CA Elliger, CE Vaccarini, CE Vaccarini, CMI Atta-ur-Rahman, CMI Atta-ur-Rahman, CP Cordero, D Alfonso, D Benjumea, D Cardona, D Cardona, D Damasceno Rocha, D Lavie, D Singh, DP Castro, DP Castro, E Glotter, E Jahan, E Maldonado, E Maldonado, E Maldonado, E-Shahwar D Atta-ur-Rahman, EJ Kennelly, ES Garcia, ES Monteagudo, ES Monteagudo, F Abe, F Echeverri, G Mareggiani, G Mareggiani, G Sen, GA Karikas, GL Silva, GM Bonetto, GV Subbaraju, H Ichikawa, H Kuang, H Matsuda, H Ripperger, H Yang, H-C Chang, H-Y Liu, HIF Magalhães, HIF Magalhães, HR Nawaz, HR Nawaz, HR Nawaz, I Vandenberghe, J March, J Zhao, J-Q Gu, J-Y Yang, JG Luis, JG Luis, JG Luis, JG Luis, JG Luis, JK Choi, K Panjamurthy, K Shingu, L Dinan, L Dinan, L Dinan, L Fang, L Ma, L Ma, L Ma, L Misra, L Misra, L Misra, L Qiu, L Qiu, LH Abdeljebbar, LN Dinan, M Ali, M Jiao, M Kaileh, M Kawai, M Kawai, M Kuroyanagi, M Lischewski, M Luna-Cavazos, M Manickam, M Manickam, M Manickam, M Manickam, M Manickam, M Nur-e-Alam, M Parvez, M Sahai, M Sharada, MA Mesaik, MBP Soares, MBP Soares, MC Tettamanzi, MC Tettamanzi, MC Tettamanzi, MC Tettamanzi, MI Choudhary, MI Choudhary, MI Choudhary, MI Choudhary, MI Choudhary, ML Veras, ML Veras, MTG Silva, N Kiyota, N Kiyota, N Riaz, N Sen, NC Vieira, ND Kannan, NJ Jacobo-Herrera, NS Ramacciotti, NV Kovganko, P Bargagna-Mohan, P Lal, P Neogi, P Uma Devi, P Uma Devi, P-C Kuo, P-W Hsieh, PM Khan, PM Khan, PM Khan, PS Vankar, Q-P He, R Chen, R Chen, R Maurya, R Mohan, R Niero, R Sunayama, RD Budhiraja, RD Enriz, RG Olmstead, RI Misico, RI Misico, RI Misico, RI Misico, RK Goel, RN Maiti, RR Gil, RS Sangwan, S Ahmad, S Ahmad, S Ahmad, S Ahmad, S Atta-ur-Rahman, S Bado, S Habtemariam, S Habtemariam, S Habtemariam, S Habtemariam, S Jha, S Jihui, S Minguzzi, S Nagafuji, S Pramanick, S Ray, S-T Fang, S-W Lee, SD Stan, SK Bhattacharya, SM Atta-ur-Rahman, SM Atta-ur-Rahman, SM Kupchan, T Hosoya, T Kuboyama, T Kuboyama, T Kuboyama, T Savchenko, TCB Tomassini, TL Tinley, TW Baumann, V Mulabagal, V Vande Velde, VE Nicotra, VE Nicotra, VE Nicotra, W-Y Chen, X-H Zhu, X-H Zhu, XH Zhu, Xu Y-m, Y Huang, Y Huang, Y Pan, Y Yokota, Y-H Kang, Y-H Lan, Y-Z Li, YM Atta-ur-Rahman   +251 more
core   +1 more source

Visible‐Light Mediated Functionalization in Phe‐Containing Peptides Upon a Debenzylative Amination Process

Advanced Synthesis &Catalysis, Volume 368, Issue 6, 17 March 2026.
Selective late‐stage modification of N‐terminal phenylalanine short peptides is achived by visible‐light initiated reaction with N‐iodoimides in a debenzylation–amination process. This metal‐free method permits the incorporation of N‐containing heterocycles into the α‐position of the peptide backbone.
Guillermo Morales‐Ortega, Iván Pérez‐Cubero, Enrique Gómez‐Bengoa, Arkaitz Correa, Javier Carreras   +4 more
wiley   +1 more source

LABORATORIO INTEGRAL DE QUÍMICA ORGÁNICA - QFB [PDF]

, 2017
GUÍA DE EVALUACIÓN DEL ...
GOMEZ ESPINOSA ROSA MARIA, GOMEZ MARTINEZ FRAZZI, PAVON FLORES MIRIAM   +2 more
core   +1 more source

Biocatalytic Epoxidation Pathway of Oils in Sponge‐Like Ionic Liquids Toward CO2‐Derived Cyclic Carbonate Synthesis

ChemSusChem, Volume 19, Issue 5, 13 March 2026.
A sustainable chemo‐enzymatic synthesis of poly(cyclic carbonate)s from CO2 and renewable oils is reported for the first time using sponge‐like ionic liquids as reaction media by two sequential steps: epoxidation and CO2 cycloaddition. A sustainable chemo‐enzymatic synthesis of poly(cyclic carbonate)s from CO2 and renewable oils is reported for the ...
Francisco J. Ruiz, Rocio Villa, Francisco Velasco, Jorge Parra, Susana Nieto, Eduardo Garcia‐Verdugo, Jairton Dupont, Pedro Lozano   +7 more
wiley   +1 more source

Enantioselective Michael Addition of Aldehydes to Maleimides Organocatalyzed by a Chiral Primary Amine-Salicylamide

Molecules, 2018
A primary amine-salicylamide derived from chiral trans-cyclohexane-1,2-diamine was used as an organocatalyst for the enantioselective conjugate addition of aldehydes, mainly α,α-disubstituted to N-substituted maleimides.
Alejandro Torregrosa-Chinillach, Adrien Moragues, Haritz Pérez-Furundarena, Rafael Chinchilla, Enrique Gómez-Bengoa, Gabriela Guillena   +5 more
doaj   +1 more source

Efficient Cu-catalyzed base-free C–S coupling under conventional and microwave heating. A simple access to S-heterocycles and sulfides [PDF]

, 2013
S-aryl thioacetates can be prepared by reaction of inexpensive potassium thioacetate with both electron-rich and electron-poor aryl iodides under a base-free copper/ligand catalytic system.
Peñeñory, Alicia Beatriz, Soria Castro, Silvia Mercedes   +1 more
core   +3 more sources

Kombinierte lösungs‐ und oberflächengestützte Synthese eines vollständig kondensierten, kreuzförmigen Phthalocyanin‐Pentamers

Angewandte Chemie, Volume 138, Issue 11, 9 March 2026.
Ein Phthalocyanin‐(Pc)‐Pentamer wurde durch die Kombination lösung‐ und oberflächengestützter Synthese unter Ultrahochvakuumbedingungen erhalten. Die entstandene Pc‐basierte Nanostruktur weist ein exaktes stöchiometrisches Verhältnis von 4:1 zweier unterschiedlicher Metallionen auf, mit präziser Positionskontrolle.
Luis M. Mateo, Tzu‐Chao Hung, Andreas Rank, Raffael Spachtholz, Felix Giselbrecht, Jonas Schön, Leo Gross, Jascha Repp, Diego Peña   +8 more
wiley   +1 more source

Virtual Campus and Facebook in the university. Enemies or Allies in the teaching and learning processes? [PDF]

, 2013
Hoy en día nuestros alumnos viven una nueva era comunicativa. Desde hace varios años los químicos utilizan la tecnología para la enseñanza y el aprendizaje en los distintos niveles de educación.
Mansilla, Daniela Soledad, Muscia, Gisela Celeste, Ugliarolo, Esteban Ariel   +2 more
core   +1 more source