Organic chemistry – Page 15
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Research258-atom endless knot created with thiazole ligands
Closed loop structure resembles Celtic and Buddhist symbols
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ResearchIntricate supramolecular rosette demonstrates power of cooperative interactions
Rosette assembles inside porphyrin nanoring when all components are present
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ResearchAluminium shows unprecedented selectivity for breaking toughest bond
An aluminium complex reacts with tricyclic hydrocarbon’s most stable ring while ignoring easier-to-break carbon–carbon bonds
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ResearchSurface chemistry discovery points way to cheaper water splitting
New experiments reveal the true mechanism of electrocatalysed oxygen evolution reaction
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ResearchNew approach to make chiral amines from internal olefins revealed
Clever reaction design enables the direct addition of N–H bonds to unactivated internal alkenes with high enantioselectivity
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ResearchBig data behind cheat sheets for optimising Buchwald–Hartwig cross-couplings
Interactive tools based on data from 62,000 reactions could help chemists eliminate human biases when selecting reaction conditions
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ResearchMachine-learning software competes with human experts to optimise organic reactions
Researchers say the tool is an inexpensive approach to yield optimisation for chemistry labs that can’t afford robots
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ResearchMachine-designed natural product syntheses pass ‘Turing test’ for chemistry
Software updates allow Chematica to design sophisticated synthetic pathways, planning each step four or five moves ahead
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ResearchElusive formyloxyl radical hints at unique, and more sustainable, chemical transformations
An electrocatalytic route for forming the formyloxyl radical in situ enables researchers to probe its unexpected chemistry
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ResearchPorphyrin assembly is ‘largest pure organic synthetic cage’ ever made
Hollow structures could find use in light harvesting or cargo-trafficking systems
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ResearchTraditional olefin hydroboration yields surprising trans-isomers
A very common organic reaction under ordinary conditions has produced significant amounts of unexpected trans-products for the first time
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PodcastGlycyrrhizic acid
A sweet treat with a deadly trick for Halloween – glycyrrhizic acid is found in black liquorice and sweeter than sucrose, but can cause heart problems and even prove fatal if consumed in excess
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ResearchHammett equation parameters optimised for improved predictive power
Update overcomes limitations and eliminates human biases intrinsic to the original formulation
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ResearchDiels–Alder study casts doubt on innate endo-selectivity
New evidence questions the Alder endo rule of simple Diels–Alder reactions
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ResearchSuperbenzenes now do the twist too
Supertwistacene is the first configurationally stable chiral graphene nanoribbon
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ResearchUniversal chemistry software can turn words into chemicals
System could be the beginning of a brave new world of democratised chemistry
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ResearchChiral benzyne made with single handedness for the first time
First enantioenriched aryne atropisomer can create chiral nanographene and anthracene structures
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OpinionFully automated synthesis of fluorine-18 PET tracers
Making radioisotopes suitable for positron emission tomography