Sabine Bognar and Manuel van Gemmeren from the WWU Münster have been invited to contribute cover of this issue. The image depicts a volcano symbolize general theme sulfur chemistry, whereas piles rubble reflect selectivity reaction. Read full text article at 10.1002/chem.202004835.

The first compound capable of forming a bundled-stack discotic columnar liquid crystalline (BSDCLC) phase was designed and synthesized. The unique perylene anhydride inter-stack interaction was found to be the key to the formation of the BSDCLC structure and inter-stack electronic coupling (ISEC).

During modification of protein amino groups with carboxylic acid anhydrides, these reagents cause a fall in pH, which can be prevented by addition of base. Although unmodified nucleosomal particles are not affected by the local transient changes in pH induced by the base (NaOH) added to prevent a fall in pH during modification, the nucleosomal particles modified by acetic anhydride are dissocia...

An Ugi multicomponent reaction based two-step strategy was applied to generate medium-sized rings. In the first linear expansion phase, a series of diamines reacted with cyclic anhydrides to produce different lengths of terminal synthetic amino acids as the starting material for the second phase. The Ugi-4-center 3-component reaction was utilized to construct complex medium-sized rings (8-11) b...

Z. Naturforsch. 51 b, 409-416 (1996); eingegangen am 28. Juni 1995 Reduction, Narthigenine, Butyrolactones, Butyrolactams, Tetramic Acids A series of potentially cytotoxic a,/?-unsaturated 7 -hydroxy-butyrolactones, -lactams and -thiolactones has been synthesized via regioselective hydride reduction of the appropriate maleic acid anhydrides, imides and thioanhydrides. By this means a straightfo...

2.1. Kinetic Resolution of Alcohols and Amines 2987 2.2. Ketene Acylation 2995 2.3. Cycloadditions 2996 2.3.1. â-Lactone Formation 2996 2.3.2. â-Lactam Formation 2997 2.3.3. Ketene Dimerization 2999 2.4. Halogenation 3000 2.5. Baylis−Hillman Reactions 3000 2.6. Desymmetrization of Cyclic Anhydrides 3002 2.7. C-Acylation 3004 2.8. Cyanation 3004 3. Solid Phase Chemistry 3007 3.1. Solution Cataly...

New series of 2,3-disubstituted quinazolin-4(3H)one were synthesized via the reaction of the readily obtainable 2-thioxo-3-phenyl-quinazolin-4(3H)one 1 with ethyl chloroacetate followed by hydrazinolysis to afford the hydrazide 3 which allowed to react with different electrophilic reagents such as carbon disulphide, phenyl isothiocyanate, β-diketones, anhydrides, acrylonitrile, ethyl cinnamate,...

A series of alkyl-group-wrapped and halogen atom functionalized unsymmetrical squaraine dyes ( ISQ ) were designed synthesized. maximum DSSC device efficiency 7.80% was achieved for iodine funtionalized ISQ-I dye in Z-150 with CDCA.

Currently, most of the reported noble-metal nanocrystals are limited to a high level of symmetry, as constrained by the inherent, face-centered cubic (fcc) lattice of these metals. In this paper, we report, for the first time, a facile and versatile approach (backed up by a clear mechanistic understanding) for breaking the symmetry of an fcc lattice and thus obtaining nanocrystals with highly u...