Earth-abundant 3d transition metals on the rise in catalysis

• Nikolaos Kaplaneris and
• Lutz Ackermann

Beilstein J. Org. Chem. 2022, 18, 86–88, doi:10.3762/bjoc.18.8

• industries as one of the most powerful methods for molecular assembly. With regard to the cost of goods and the allowance of trace metal impurities in medicinally relevant compounds, 3d transition metal complexes, such as those of iron, copper, cobalt or nickel, represent exciting, more sustainable

A heteroditopic macrocycle as organocatalytic nanoreactor for pyrroloacridinone synthesis in water

• Piyali Sarkar,
• Sayan Sarkar and
• Pradyut Ghosh

Beilstein J. Org. Chem. 2019, 15, 1505–1514, doi:10.3762/bjoc.15.152

• is a molecular assembly of BATA-MC single molecules which may provide a suitable organic environment to the starting materials by π-interaction and H-bonding, and inevitably orients them into the necessary reactive positions. To represent the simple catalytic activity, we have chosen a part of the

An amphiphilic pseudo[1]catenane: neutral guest-induced clouding point change

• Tomoki Ogoshi,
• Tomohiro Akutsu and
• Tada-aki Yamagishi

Beilstein J. Org. Chem. 2018, 14, 1937–1943, doi:10.3762/bjoc.14.167

• best of our knowledge, the use of a dynamic supramolecular structural change of 3 to induce an LCST change is the first example in this area. Thus, this work may open the way for the design of a new generation of molecular assembly systems using supramolecular structures such as rotaxane, catenanes

Preparative semiconductor photoredox catalysis: An emerging theme in organic synthesis

• David W. Manley and
• John C. Walton

Beilstein J. Org. Chem. 2015, 11, 1570–1582, doi:10.3762/bjoc.11.173

• methods could be enlisted in constructive molecular assembly applications. Our study of SCPC processes revealed that a wide range of carboxylic acids could be deployed in preparatively useful ways. Radical additions to alkenes, cyclizations and tandem addition–cyclizations, as well as homo-couplings, were

Molecular assembly of amino acid interlinked, topologically symmetric, π-complementary donor–acceptor–donor triads

• M. B. Avinash,
• K. V. Sandeepa and
• T. Govindaraju

Beilstein J. Org. Chem. 2013, 9, 1565–1571, doi:10.3762/bjoc.9.178

• realized by modulating the chemical functionality of interlinking amino acids. Keywords: amino acids; charge transfer; designer functional molecules; molecular assembly; molecular recognition; Findings Geometric shapes, size and patterns have attracted the inquisitive human mind since time immemorial [1

• molecular materials [7][8][9][10] is essentially dependant on their molecular assembly [11][12][13][14][15][16], it is extremely important to identify suitable donor–acceptor sequences for efficient energy or charge-transfer processes. It is with this conception that we have designed pyrene based D-A-D

• thus obtained is shown in Figure 5c and 5d. Conclusion In conclusion, we have designed and elucidated the molecular assembly of amino acid interlinked novel D-A-D triads. Herein, a relatively weaker noncovalent interaction like charge-transfer complexation has been achieved by employing a topologically

meta-Oligoazobiphenyls – synthesis via site-selective Mills reaction and photochemical properties

• Raphael Reuter and
• Hermann A. Wegner

Beilstein J. Org. Chem. 2012, 8, 877–883, doi:10.3762/bjoc.8.99

• , demonstrating interesting coil–uncoil phenomena upon irradiation [21]. There are also reports on polymers that contain multiple azobenzene units. In these materials, however, the effect of the individual azobenzene moiety on the whole molecular assembly is not specified [22][23]. So far, mainly para-connected