Results 81 to 90 of about 10,665 (213)
Metal‐Free Electrophilic Borylative Cyclizations of Alkynes
The Chemical Record, EarlyView.Metal‐free borylative cyclizations based on electrophilic alkyne activation by boron Lewis acids provide efficient access to borylated hetero‐ and carbocycles. Early studies using B(C6F5)3 displayed limited scope and application, whereas recent ClBcat‐ and BCl3‐based methods enable mild CB and CC/CX bond formation for the synthesis of cycles ...
Jaime Mateos‐Gil +3 more
wiley +1 more source
Eskişehir Osmangazi Üniversitesi Mühendislik ve Mimarlık Fakültesi DergisiIn this study, 3-iodo-2-(p-tolyl)benzo[b]thiophene (4C) is synthesized by using Sonagashira coupling reactions and electrophilic cyclization reactions.
Arif Kıvrak +4 more
doaj +1 more source
Archaeometry, EarlyView.ABSTRACT The Guanche mummies, ancient inhabitants of the Canary Islands, represent a significant part of the historical heritage preserved at the Museum of Nature and Archaeology (MUNA) in Tenerife, Spain. These mummies, subjected to artificial conservation practices, are of great interest to conservators seeking to understand their mummification ...
Benigno Sánchez +5 more
wiley +1 more source
Green diesel production through simultaneous deoxygenation of palmitic acid and desulfurization of 4,6-Dimethyl-dibenzothiophene over commercial CoMo/Al2O3 [PDF]
Biofuel Research Journal, 2018 This study investigated the deoxygenation of palmitic acid as a model compound of palm fatty acid distillate (PFAD), in the presence of 4,6- di-methyl-di-benzothiophene as a sulfur-containing light gas oil (LGO).
Sunya Boonyasuwat, Jirdsak Tscheikuna
doaj +1 more source
Effect of Co and Mo Loading by Impregnation and Ion Exchange Methods on Morphological Properties of Zeolite Y Catalyst [PDF]
, 2016 Coal tar can be used as an alternative raw material for the production of liquid fuels, such as: gasoline and diesel through hydrogenation and cracking process.
Anggoro, Didi Dwi +3 more
core +2 more sources
Synthesis of Sulfur Heterocycles by Palladium‐Catalyzed Cyclization
European Journal of Organic Chemistry, Volume 29, Issue 14, 15 April 2026.In spite of the well‐known palladium thiophilicity, sulfur‐containing acyclic substrates may efficiently undergo several different kinds of palladium‐catalyzed cyclization processes leading to highly important sulfur heterocycles in one synthetic step. Advances in this challenging and stimulating field of research are presented in this review.
Bartolo Gabriele
wiley +1 more source
Organic indicators of alteration in the CR chondrites [PDF]
, 2002 A study of the organic components in the CR chondrite macromolecule in order to assess the role of pre-terrestrial alteration on the organic ...
Gilmour, I. +2 more
core
Identification of Trace Organic Components in the CR Chondrites by 4D TOFMS [PDF]
, 2007 This paper reports preliminary results of a 4D TOFMS study of CR chondrite organic material, highlighting the low-level organic species that may further reveal the complexity of parent body modification of interstellar ...
Gilmour, I. +4 more
core
, 2015 International audiencePhosphine-free palladium(II) acetate catalyst was found to promote the direct 2-arylation of 3-bromobenzo[b]thiophene without cleavage of the benzothienyl carbon-bromine bond, allowing the synthesis of 2-aryl-3-bromobenzo[b ...
Ben Ammar, Hamed +4 more
core +3 more sources
Computational design and selection of optimal organic photovoltaic materials [PDF]
, 2011 Conjugated organic polymers are key building blocks of low-cost photovoltaic materials. We have examined over 90 000 copolymers using computational predictions to solve the "inverse design" of molecular structures with optimum properties for highly ...
Campbell, Casey M. +2 more
core +1 more source