Nucleophilic Gallyl Anions Enable Ga─Au Bimetallic Ammonia Activation
Angewandte Chemie, EarlyView.Unlocking gallyl nucleophiles: Counterion control enables formation of an unsupported gallyl─gold complex. Gold coordination induces a polarity switch at gallium, enabling cooperative activation of NH3 and related N─H/O─H substrates under mild conditions.
Hellen Videa +3 more
wiley +2 more sources
Efficient preparation of unsymmetrical disulfides by nickel-catalyzed reductive coupling strategy
Nature Communications, 2022 The preparation of disulfides mainly relies on oxidative couplings of two sulfur-containing compounds, a strategy which has side reactions and other shortcomings.
Fei Wang +4 more
doaj +1 more source
On the prevalence of bridged macrocyclic pyrroloindolines formed in regiodivergent alkylations of tryptophan. [PDF]
, 2016 A Friedel-Crafts alkylation is described that efficiently transforms tryptophan-containing peptides into macrocycles of varying ring connectivity. Factors are surveyed that influence the distribution of regioisomers, with a focus on indole C3-alkylations
Curtin, Brice H +5 more
core +1 more source
Electrophilic Cyclization of Diterpenoids
Chemistry Journal of Moldova, 2006 A review of diterpenoid cyclization initiated by electrophilic reagents is provided. Conventional protonic and Lewis acids are examined along with superacids as initiators of cyclization cascade. An emphasis is placed on the use of cyclization reactions as a tool for the synthesis of compounds with potential practical utility.
Veaceslav Kulciţki +3 more
openaire +2 more sources
Direct protonation of the W–H bonds of Bis(pentamethylcyclopentadienyl)tungsten dihydride [PDF]
, 1989 Protonation of (C_5Me_5)_2 WH_2 to give [(C_5Me_5)_2WH_3]+ is proposed to occur by attack at both W–H bonds rather than by direct attack at the d^2 metal ...
Bercaw, John E., Parkin, Gerard
core +1 more source
Angewandte Chemie, EarlyView.A light mediated direct regioselective B─H functionalization, via hydrogen atom transfer (HAT), is described. Unexplored xanthyl‐closo‐carboranes as novel bench‐stable and versatile platforms to access sulfur‐containing boron clusters are reported for the first time.
Marco Rusconi +9 more
wiley +2 more sources
Preparation and Functionalization of Mono‐ and Polyfluoroepoxides via Fluoroalkylation of Carbonyl Electrophiles [PDF]
, 2022 Shuo Guo +4 more
openalex +1 more source
Upgrading ketone synthesis direct from carboxylic acids and organohalides
Nature Communications, 2020 Due to their abundance and importance in organic chemistry, development of methods for ketone synthesis is essential. Here, the authors report a photoredox, nickel and phosphoranyl radical synergistic cross-electrophile coupling of aromatic acids and ...
Rehanguli Ruzi +3 more
doaj +1 more source
Isolation, X-ray Structures, and Electronic Spectra of Reactive Intermediates in Friedel−Crafts Acylations [PDF]
, 2005 Reactive intermediates in the Friedel−Crafts acylation of aromatic donors are scrutinized upon their successful isolation and X-ray crystallography at very low temperatures.
Davlieva, M. G. +3 more
core +1 more source
Sheep liver cytosolic aldehyde dehydrogenase : a fresh perspective : a thesis presented in partial fulfilment of the requirements for the degree of Master of Science in Chemistry at Massey University, New Zealand [PDF]
, 1995 The pre-steady-state mechanism of aldehyde dehydrogenase has been further investigated using synthesised deuterated 4-trans-(N,N-dimethylamino) cinnamaldehyde as a substrate.
Sime, Richard Malcolm
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