The design of novel, synthetically useful (thio) urea-based organocatalysts

SJ Connon - Synlett, 2009 - thieme-connect.com
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[HTML][HTML] An efficient ring-opening copolymerization of thiiranes with elemental sulfur in the presence of the fluoride anion

J Wręczycki, DM Bieliński, M Kozanecki, K Strzelec… - Polymer, 2023 - Elsevier
Sulfurization of selected thiiranes such as 2-phenylthiirane (styrene sulfide), 2, 3-
tetramethylenethiirane (cyclohexene sulfide) and 2-(α-thienyl) thiirane was carried out …

Gold catalysis: benzanellation versus alkylidenecyclopentenone synthesis

ASK Hashmi, M Wölfle - Tetrahedron, 2009 - Elsevier
A series of different furan-yn-ols were prepared by a three-step sequence. Their reaction
with Gagosz's catalyst Ph3PAuNTf2 depends strongly on the substitution pattern of the …

New volatile sulfur-containing constituents in a simultaneous distillation− extraction extract of red bell peppers (Capsicum annuum)

R Naef, A Velluz, A Jaquier - Journal of agricultural and food …, 2008 - ACS Publications
An extract of red bell peppers (Capsicum annuum) was prepared by simultaneous
distillation− extraction (SDE, Likens− Nickerson). In addition to the already known (3 E)-3 …

Rhodium (I)-catalyzed homologation of aromatic aldehydes with trimethylsilyldiazomethane

EL Dias, M Brookhart, PS White - Journal of the American …, 2001 - ACS Publications
One-carbon homologation reactions are of broad utility in organic synthesis. In the case of
aromatic aldehyes, homologation to the corresponding arylacetaldehydes has previously …

Push−Pull Aminobithiophenes  Highly Fluorescent Stable Fluorophores

Y Dong, A Bolduc, N McGregor, WG Skene - Organic Letters, 2011 - ACS Publications
Push−Pull Aminobithiophenes — Highly Fluorescent Stable Fluorophores | Organic Letters
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Nucleophilic organic base DABCO-mediated chemospecific meinwald rearrangement of terminal epoxides into methyl ketones

S Li, Y Shi, P Li, J Xu - The Journal of organic chemistry, 2019 - ACS Publications
Nucleophilic organic base DABCO (1, 4-diazabicyclo [2.2. 2] octane)-mediated Meinwald
rearrangement of various epoxides was investigated. 2-Aryl-, alkenyl-, and alkynylepoxides …

Urea derivatives are highly active catalysts for the base-mediated generation of terminal epoxides from aldehydes and trimethylsulfonium iodide

SA Kavanagh, A Piccinini, EM Fleming… - Organic & biomolecular …, 2008 - pubs.rsc.org
N, N′-Diarylureas have been shown to efficiently catalyse sulfonium ylide-mediated
aldehyde epoxidation reactions for the first time. These processes are of broad scope and …

“Instant methylide” modification of the Corey–Chaykovsky epoxide synthesis

JA Ciaccio, AL Drahus, RM Meis, CT Tingle… - Synthetic …, 2003 - Taylor & Francis
We report that Me3S (O)+ I−(1) and Me3S+ I−(2) form stable, dry mixtures with KO t-Bu and
NaH, respectively, which remain stable upon prolonged storage (> 1 year). The …

Novel dehydration of stilbene oxides to diphenylacetylene using flash vacuum thermolysis with solid acid catalysts

ACLM van der Waals, AJH Klunder… - Journal of Molecular …, 1998 - Elsevier
Isomerization of cis-and trans-stilbene oxide was achieved under catalytic flash vacuum
thermolysis (FVT), using silica–alumina and clay as catalysts. Depending on the amount of …