Correction for ‘Regioselective and water-assisted surface esterification of never-dried cellulose: nanofibers with adjustable energy’ by Marco Beaumont, Caio G. Otoni, Bruno D. Mattos et. al. , Green Chem. 2021, DOI: 10.1039/D1GC02292J.

The first total synthesis of the potent antioxidant antiostatin A1 is reported, where its key features rely on a chemo- and regioselective rhodium-catalysed crossed alkyne cyclotrimerisation reaction applying functionalised ynamides and a palladium-catalysed arylamidation reaction.

A highly regioselective and enantioselective copper-catalyzed 1,4-conjugate addition of Grignard reagents to linear α,β,γ,δ-unsaturated ketones was developed. The 1,4-addition products were obtained regioselectively in high yields with up to 98% ee.

An efficient Rh(I)-NHC-pincer catalyst for the highly regioselective Meinwald rearrangement of monoalkylated epoxides into methylketones under mild conditions is presented. The nucleophilic epoxide opening is assisted by Lewis acids.

A ruthenium-catalyzed highly regioselective cyclization of substituted N-methoxy benzimidoyl halides with alkynes in the presence of CsOAc (25 mol%) to give substituted 1-halo and 1-alkoxy substituted isoquinolines in good to excellent yields is described.

A novel approach for the regioselective preparation of rtct-tpcb (tpcb = tetrapyridylcyclobutanes) compounds promoted by polymolybdates under hydrothermal conditions is reported; these isomers are stabilised as counterions in inorganic-organic hybrid solids and are obtained in high to fair yield.

We have discovered thiazepine moiety-controlled regioselective skeletal rearrangements of 7-oxanorbornadiene derivatives (2, 7 and 12) with high regioselectivity and/or diastereoselectivity in the presence of Brønsted acid.

A short reaction sequence leads to oligoarene derivatives utilising a regioselective Scholl reaction for the unprecedented cyclisation to the mono-functionalised oligoarene under methanol elimination. Quantum-chemical investigations reveal the reason for the remarkably high regioselectivity.

The ring-opening of epoxides with potassium trifluoroborates proceeds smoothly in the presence of trifluoroacetic anhydride under metal-free conditions. The reactions are regioselective and afford a single diastereomer. Both electron-rich and electron-poor aryltrifluoroborates are tolerated.

Activation of imide carbonyl group with trifluoromethanesulfonic acid facilitates the intramolecular cyclization of phenethylphthalimides to give a fused isoindoloisoquinolinone skeleton. The first one pot regioselective synthesis of isoindoloisoquinolinone alkaloid (±)-nuevamine has been successfully executed using this methodology.