Hantzsch-ester-mediated Knoevenagel condensation–reduction reaction

Efficient Alkylation of 2,4-Dihydroxyquinolines and -Pyridines
![[Ag]2[B12Cl12] as a Catalyst in Chlorination Reactions](https://www.chemistryviews.org/wp-content/uploads/legacy/common/images/thumbnails/source/17955c969f9.jpg)
[Ag]2[B12Cl12] as a Catalyst in Chlorination Reactions
Weakly coordinating carborane anion increases the activity of iodobenzene dichloride

Industrial Waste Gases for Chemical Production
1st success: LanzaTech and BASF produce n-octanol at a laboratory scale from carbon monoxide and hydrogen

Cooperative Catalysis in Semi-Synthetic Enzymes
Reconstitution of hydrogenases using a series of Mn(I) complexes

Why Some Patients Keep Testing Positive for SARS-CoV-2
Reverse-transcribed SARS-CoV-2 RNA can integrate into the genome of cultured human cells

Total Synthesis of (−)-Strictosidine
Biosynthetic precursor to monoterpene indole alkaloids, an important class of natural products

High-Throughput Test for COVID-19 Antibodies
Microfluidic assay allows performing over 1,000 measurements in parallel using ultralow-volume blood samples

Green Synthesis of Aromatic Ketones in Water
Mild and efficient photocatalytic C−H oxygenation

2D Nanomaterials as Solid Lubricants
Long-term friction and wear performance of MXene coatings studied

Angewandte Chemie 20/2021: Protection
Overview of the latest issue of Angewandte Chemie